Title: $23 Cheap flights from San Marcos, CA - Expedia.com ![](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # $23 Cheap flights from San Marcos, CA [View $23 flight on Thu, Feb 26, 2026](https://expedia.com/Flights-Search?trip=oneway&leg1=from:SAN,to:DEN,departure:2/26/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:22.98&airProductToken=AQowCi4IxnISBDI4MTgYkmggg2kowZmGAzDcmoYDOEVAAFgBagRQQ18xcgdLMTRSWFMyEgoIARABGAEqAkY5GAEiBAgBEAEoAigDMA0) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travelers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only [San Marcos Travel Guide](https://expedia.com/San-Marcos.dx55946)[Hotels in San Marcos](https://expedia.com/San-Marcos-Hotels.d55946.Travel-Guide-Hotels)[Things to do in San Marcos](https://expedia.com/Things-To-Do-In-San-Marcos.d55946.Travel-Guide-Activities)[Car Rentals in San Marcos](https://expedia.com/Car-Rentals-In-San-Marcos.d55946.Car-Rental-Guide)[San Marcos Vacation Packages](https://expedia.com/San-Marcos.d55946.Destination-Travel-Guides) ## Popular airlines from San Marcos - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WN.svg) Southwest Airlines - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_F9.svg) Frontier Airlines - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AC.svg) Air Canada - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our OneKeyCash [Learn about One Key](https://www.expedia.com/welcome-one-key) ## Today's featured flight deals from San Marcos Nonstop Carry-on included Lower price than typical - San Diego (SAN)New York (JFK) Mon, Mar 9 Fri, Mar 13 ![Delta](https://a.travel-assets.com/air/airlines/dl_sq.svg)Delta • Nonstop --- 3-day trip found 15 hours ago 50% less than typical $217 [](https://www.expedia.com/Flights-Search?leg1=from:SAN,to:JFK,departure:3/9/2026TANYT&leg2=from:JFK,to:SAN,departure:3/13/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&airOfferToken=v5-sos-41fbf45e0dc346118583ac704646fe93-3056-1-st-v5-sos-41fbf45e0dc346118583ac704646fe93-3097-1~8.S.1~AQoCCAESBwjUBBABGAEoAlgCcABwAHoDYmZzegNiZnOIAYTU4FuQAQCQAQuqAQcKA1NBThABsgEHCgNOWUMQAg~AQo3CjUIxJgBEgQxMzQzGJJoIKlRKKWchwMw6Z6HAzhFQABYAWoJTUFJTkJBU0lDcghWQVZOQTBCQxIKCAEQARgBKgJETBgBIgQIARABKAIoAygEMAE.AQovCi0IwmwSBDExODkYqVEgkmgojsWHAzCMyIcDOExAAFgBagJETnIIUEkyQUJFTDESCggBEAEYASoCQjYYASIECAEQASgCKAQoBjAB&medianPrice=562.00&displayPrice=216.90&src=dflp) - San Diego (SAN)New York (JFK) Sun, Mar 1 Sun, Mar 8 ![JetBlue Airways](https://a.travel-assets.com/air/airlines/b6_sq.svg)JetBlue Airways • Nonstop --- 6-day trip found 16 hours ago 40% less than typical $246 [](https://www.expedia.com/Flights-Search?leg1=from:SAN,to:JFK,departure:3/1/2026TANYT&leg2=from:JFK,to:SAN,departure:3/8/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&airOfferToken=v5-sos-eb028bba842f4d8bb02a344616af8519-2138-1-st-v5-sos-eb028bba842f4d8bb02a344616af8519-2131-1~8.S.1~AQoCCAESBwjUBBABGAEoAlgCcABwAHoDYmZzegNiZnOIAbW34FuQASOQAQCqAQcKA1NBThAAsgEHCgNOWUMQAA~AQovCi0IwmwSBDExOTAYkmggqVEolsKGAzDFxIYDOExAAFgBagJETnIIUEkyQUJFTDESCggBEAEYASoCQjYYASIECAEQASgCKAQoBjAB.AQo2CjQIxJgBEgM2ODUYqVEgkmgo6I6HAzDvkYcDOEVAAFgBaglNQUlOQkFTSUNyCFZBVlNBMEJDEgoIARABGAEqAkRMGAEiBAgBEAEoAigDKAQwAQ&medianPrice=551.00&displayPrice=245.90&src=dflp) - San Diego (SAN)New York (JFK) Thu, Mar 5 Sun, Mar 8 ![JetBlue Airways](https://a.travel-assets.com/air/airlines/b6_sq.svg)JetBlue Airways • Nonstop --- 3-day trip found 18 hours ago 45% less than typical $227 [](https://www.expedia.com/Flights-Search?leg1=from:SAN,to:JFK,departure:3/5/2026TANYT&leg2=from:JFK,to:SAN,departure:3/8/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&airOfferToken=v5-sos-baee2b8b3dc6471e965df84fbe154736-1687-1-st-v5-sos-baee2b8b3dc6471e965df84fbe154736-1625-1~8.S.1~AQoCCAESBwjUBBABGAEoAlgCcABwAHoDYmZzegNiZnOIAcOE4FuqAQcKA1NBThAAsgEHCgNKRksQAA~AQouCiwIwmwSAzI5MBiSaCCpUSih64YDMOLthgM4TEAAWAFqAkROcghQSTJBQkVMMRIKCAEQARgBKgJCNhgBIgQIARABKAIoBCgGMAE.AQo2CjQIxJgBEgM2ODUYqVEgkmgo6I6HAzDvkYcDOEVAAFgBaglNQUlOQkFTSUNyCFZBVk5BMEJDEgoIARABGAEqAkRMGAEiBAgBEAEoAigDKAQwAQ&medianPrice=546.00&displayPrice=226.90&src=dflp) - San Diego (SAN)Seattle (SEA) Fri, Mar 13 Sun, Mar 22 ![Delta](https://a.travel-assets.com/air/airlines/dl_sq.svg)Delta • Nonstop --- 8-day trip just found 45% less than typical $177 [](https://www.expedia.com/Flights-Search?leg1=from:SAN,to:SEA,departure:3/13/2026TANYT&leg2=from:SEA,to:SAN,departure:3/22/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&airOfferToken=v5-sos-88c106549e9240f1aab23b815de912b2-420-1~8.S.1~AQoCCAESBwjUBBABGAEoAlgCcAB6A2Jmc4gB5ILkW6oBBwoDU0FOEACyAQcKA1NFQRAA~AQo3CjUIxJgBEgQyNjEzGJJoIJIBKPbHhwMwucmHAzhFQABYAWoJTUFJTkJBU0lDcghWRlZTQTBCQwo3CjUIxJgBEgQyNjEzGJIBIJJoKKariAMw0KyIAzhFQABYAWoJTUFJTkJBU0lDcghWRlZTQTBCQxIKCAEQARgBKgJETBgBIgQIARABKAIoAygEMAE&medianPrice=407.00&displayPrice=176.80&src=dflp) - San Diego (SAN)Seattle (SEA) Fri, Mar 13 Sun, Mar 22 ![Delta](https://a.travel-assets.com/air/airlines/dl_sq.svg)Delta • Nonstop --- 9-day trip just found 45% less than typical $177 [](https://www.expedia.com/Flights-Search?leg1=from:SAN,to:SEA,departure:3/13/2026TANYT&leg2=from:SEA,to:SAN,departure:3/22/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&airOfferToken=v5-sos-d5916e7d85b14a339331a8a4cf3c0baf-1459-1~8.S.1~AQoCCAESBwjUBBABGAEoAlgCcAB6A2Jmc4gByILkW5ABJaoBBwoDU0FOEACyAQcKA1NFQRAA~AQo3CjUIxJgBEgQyNTcyGJJoIJIBKJDGhwMwzMeHAzhFQABYAWoJTUFJTkJBU0lDcghWRlZTQTBCQwo3CjUIxJgBEgQyNjcyGJIBIJJoKJutiAMwyK6IAzhFQABYAWoJTUFJTkJBU0lDcghWRlZTQTBCQxIKCAEQARgBKgJETBgBIgQIARABKAIoAygEMAE&medianPrice=407.00&displayPrice=176.80&src=dflp) - San Diego (SAN)Seattle (SEA) Thu, Mar 19 Sun, Mar 22 ![Delta](https://a.travel-assets.com/air/airlines/dl_sq.svg)Delta • Nonstop --- 3-day trip found 15 hours ago 40% less than typical $177 [](https://www.expedia.com/Flights-Search?leg1=from:SAN,to:SEA,departure:3/19/2026TANYT&leg2=from:SEA,to:SAN,departure:3/22/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&airOfferToken=v5-sos-e506049556af485eb0780b072fe9c95f-725-1~8.S.1~AQoCCAESBwjUBBABGAEoAlgCcAB6A2Jmc4gB_cngW6oBBwoDU0FOEACyAQcKA1NFQRAA~AQo3CjUIxJgBEgQyNTMwGJJoIJIBKOaFiAMwpIeIAzhFQABYAWoJTUFJTkJBU0lDcghWRlZTQTBCQwo3CjUIxJgBEgQyNjcyGJIBIJJoKJutiAMwyK6IAzhFQABYAWoJTUFJTkJBU0lDcghWRlZTQTBCQxIKCAEQARgBKgJETBgBIgQIARABKAIoAygEMAE&medianPrice=393.00&displayPrice=176.80&src=dflp) - San Diego (SAN)San Francisco (SFO) Wed, Feb 25 Sun, Mar 1 ![Alaska Airlines](https://a.travel-assets.com/air/airlines/as_sq.svg)Alaska Airlines • Nonstop --- 3-day trip found 11 hours ago 60% less than typical $112 [](https://www.expedia.com/Flights-Search?leg1=from:SAN,to:SFO,departure:2/25/2026TANYT&leg2=from:SFO,to:SAN,departure:3/1/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&airOfferToken=v5-sos-15658b6383cc43198e34a9a8e0e6ca0d-918-1-st-v5-sos-15658b6383cc43198e34a9a8e0e6ca0d-900-1~8.S.1~AQoCCAESBwjUBBABGAEoAlgCcABwAHoDYmZzegNiZnOIAcfP4VuQAQCQAQaqAQcKA1NBThAAsgEHCgNTRk8QAA~AQowCi4IwaYBEgQzMzc2GJJoILJxKNGVhgMwv5aGAzhYQABYAWoCU1ZyCE9IMk9YVkJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ.AQovCi0I15wBEgM5NTcYsnEgkmgo_rqGAzDYu4YDOFZAAFgBagNXR0FyB1ZMTlZIMkQSCggBEAEYASoCV04YASIECAEQASgCKAMoBDAB&medianPrice=367.00&displayPrice=111.80&src=dflp) - San Diego (SAN)San Francisco (SFO) Thu, Mar 19 Sun, Mar 29 ![Southwest Airlines](https://a.travel-assets.com/air/airlines/wn_sq.svg)Southwest Airlines • Nonstop --- 9-day trip found 23 hours ago 45% less than typical $192 [](https://www.expedia.com/Flights-Search?leg1=from:SAN,to:SFO,departure:3/19/2026TANYT&leg2=from:SFO,to:SAN,departure:3/29/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&airOfferToken=v5-sos-c31e43ae642240b99298ab02eb361e7d-1623-1~8.S.1~AQoCCAESBwjUBBABGAEoAlgCcAB6A2Jmc4gB1PjeW6oBBwoDU0FOEACyAQcKA1NGTxAA~AQowCi4I15wBEgQzNDAyGJJoILJxKPeGiAMw4IeIAzhWQABYAWoDV0dBcgdWTE5WSDJECmIKLwjXnAESBDQxODQYsnEg77kBKNv1iAMwzvaIAzhaQABYAWoDV0dBcgdaTEFWVzJECi8I15wBEgQzMTg0GO-5ASCSaCjp94gDMLT4iAM4WkABWAFqA1dHQXIHWkxBVlcyRBIKCAEQARgBKgJXThgBIgQIARABKAIoAygEMAE&medianPrice=470.00&displayPrice=191.59&src=dflp) - San Diego (SAN)San Francisco (SFO) Sun, Mar 8 Sun, Mar 15 ![Southwest Airlines](https://a.travel-assets.com/air/airlines/wn_sq.svg)Southwest Airlines • Nonstop --- 6-day trip just found 60% less than typical $127 [](https://www.expedia.com/Flights-Search?leg1=from:SAN,to:SFO,departure:3/8/2026TANYT&leg2=from:SFO,to:SAN,departure:3/15/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&airOfferToken=v5-sos-2f721abfeee2400592a279dc877ef894-1364-1~8.S.1~AQoCCAESBwjUBBABGAEoAlgCcAB6A2Jmc4gBm4XkW6oBBwoDU0FOEACyAQcKA1NGTxAA~AQowCi4I15wBEgQzNDAyGJJoILJxKMqJhwMwuIqHAzhWQABYAWoDV0dBcgdWTE5WSDJECi8KLQjXnAESAzk4MhiycSCSaCiM2IcDMOvYhwM4VkAAWAFqA1dHQXIHVkxOVkgyRBIKCAEQARgBKgJXThgBIgQIARABKAIoAygEMAE&medianPrice=404.00&displayPrice=126.80&src=dflp) ## Cheapest flights from San Marcos These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Frontier Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/F9.gif) Thu, Mar 5 - Sun, Mar 8 SAN San Diego DEN Denver $46 Roundtrip just found [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SAN,to:DEN,departure:3/5/2026TANYT&leg2=from:DEN,to:SAN,departure:3/8/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:45.96&airProductToken=AQowCi4IxnISBDQ5MjgYkmggg2ko7-qGAzCE7IYDOEVAAFgBagRQQ18xcgdLMjFSWFMyCjAKLgjGchIENDk4ORiDaSCSaCjNkIcDMOyRhwM4RUAAWAFqBFBDXzFyB0syMVlYUzISCggBEAEYASoCRjkYASIECAEQASgCKAMwDQ) ![Frontier Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/F9.gif) Thu, Apr 30 - Sun, May 3 SAN San Diego SFO San Francisco $56 Roundtrip just found [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SAN,to:SFO,departure:4/30/2026TANYT&leg2=from:SFO,to:SAN,departure:5/3/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:55.96&airProductToken=AQowCi4IxnISBDMzODMYkmggsnEok9-LAzD-34sDOEVAAFgBagRQQ18xcgdLMjFSWFMyCjAKLgjGchIENDMwNhiycSCSaCifgYwDMIGCjAM4RUAAWAFqBFBDXzFyB0syMVlYUzISDAgBEAEYASoCRjkyABgBIgQIARABKAIoAzAN) ![Frontier Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/F9.gif) Fri, Feb 20 - Fri, Feb 27 SAN San Diego LAS Las Vegas $56 Roundtrip just found [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SAN,to:LAS,departure:2/20/2026TANYT&leg2=from:LAS,to:SAN,departure:2/27/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:55.96&airProductToken=AQoxCi8IxnISBDEzMjYYkmggi5ABKMLchQMwnN2FAzhFQABYAWoEUENfMXIHSzE0SVhTMgoxCi8IxnISBDE0NjkYi5ABIJJoKJiqhgMw66qGAzhFQABYAWoEUENfMXIHSzIxTVhTMhIKCAEQARgBKgJGORgBIgQIARABKAIoAzAN) ![Frontier Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/F9.gif) Thu, Feb 26 - Thu, Mar 5 SAN San Diego AUS Austin $56 Roundtrip just found [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SAN,to:AUS,departure:2/26/2026TANYT&leg2=from:AUS,to:SAN,departure:3/5/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:55.96&airProductToken=AQoxCi8IxnISBDE4NzgYkmgggJUBKIyehgMwuJ-GAzhFQABYAWoEUENfMXIHSzE0UlhTMgoxCi8IxnISBDE4NzcYgJUBIJJoKJDqhgMw1-uGAzhFQABYAWoEUENfMXIHSzIxUlhTMhIKCAEQARgBKgJGORgBIgQIARABKAIoAzAN) ![Frontier Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/F9.gif) Fri, Apr 24 - Sun, Apr 26 SAN San Diego DFW Dallas $66 Roundtrip just found [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SAN,to:DFW,departure:4/24/2026TANYT&leg2=from:DFW,to:SAN,departure:4/26/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:65.96&airProductToken=AQoxCi8IxnISBDE0MjYYkmggo7EBKMOaiwMwiJyLAzhFQABYAWoEUENfMXIHSzIxSVhTMgoxCi8IxnISBDE0MjUYo7EBIJJoKMG3iwMwj7mLAzhFQABYAWoEUENfMXIHSzIxWVhTMhIKCAEQARgBKgJGORgBIgQIARABKAIoAzAN) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Wed, Apr 15 - Wed, Apr 22 SAN San Diego SFO San Francisco $97 Roundtrip just found [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SAN,to:SFO,departure:4/15/2026TANYT&leg2=from:SFO,to:SAN,departure:4/22/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:96.81&airProductToken=AQoyCjAIwaYBEgMyOTEYkmggsnEo77uKAzDgvIoDOFhAAFgBagVTQVZFUnIIT0gyT1hWQk4KMgowCMGmARIDNTc4GLJxIJJoKJeEiwMw-4SLAzhYQABYAWoFU0FWRVJyCE9IMk9YVkJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwDQ) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Wed, Apr 15 - Wed, Apr 22 SAN San Diego SFO San Francisco $97 Roundtrip just found [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SAN,to:SFO,departure:4/15/2026TANYT&leg2=from:SFO,to:SAN,departure:4/22/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:96.81&airProductToken=AQo4CjYI1YIBEgQyMzA5GJJoILJxKJi3igMwgriKAzhOQABYAWoKMV9iYXNpY2Vjb3IIR0FLMkFRQlMKOAo2CNWCARIEMTk4MBiycSCSaCiIhIsDMPCEiwM4TkAAWAFqCjFfYmFzaWNlY29yCEdBSzJBUUJTEgoIARABGAEqAlVBGAEiBAgBEAEoAigDKAQwCw) ![Southwest Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/wn.gif) Wed, Apr 15 - Wed, Apr 22 SAN San Diego SFO San Francisco $97 Roundtrip just found [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SAN,to:SFO,departure:4/15/2026TANYT&leg2=from:SFO,to:SAN,departure:4/22/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:96.81&airProductToken=AQovCi0I15wBEgMyNzYYkmggsnEok7eKAzD3t4oDOFZAAFgBagNXR0FyB1ZETlZIMkQKMAouCNecARIEMjA2NhiycSCSaCjBhYsDMKCGiwM4VkAAWAFqA1dHQXIHVkROVkgyRBIKCAEQARgBKgJXThgBIgQIARABKAIoAygEMAE) ![Frontier Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/F9.gif) Thu, Feb 26 - Sat, Feb 28 SAN San Diego SEA Seattle $138 Roundtrip found 7 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SAN,to:SEA,departure:2/26/2026TANYT&leg2=from:SEA,to:SAN,departure:2/28/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:137.96&airProductToken=AQpiCi8IxnISBDE0NzAYkmggi5ABKK6dhgMwh56GAzhFQABYAWoEUENfMXIHWjIxVlhQNAovCMZyEgQ0NjY3GIuQASCSASjInoYDMPifhgM4RUAAWAFqBFBDXzFyB1oyMVZYUDQKYAouCMZyEgQzNDA2GJIBIINpKJyzhgMwx7SGAzhFQABYAWoEUENfMXIHSzIxT1hQNAouCMZyEgQ0OTg5GINpIJJoKIm3hgMwqLiGAzhFQABYAWoEUENfMXIHSzIxT1hQNBIKCAEQARgBKgJGORgBIgQIARABKAIoAzAN) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Fri, May 1 - Tue, May 5 CLD Carlsbad DEN Denver $159 Roundtrip found 2 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:CLD,to:DEN,departure:5/1/2026TANYT&leg2=from:DEN,to:CLD,departure:5/5/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:158.39&airProductToken=AQpoCjIIwYIBEgQ0MDIyGOIaIO-5ASiR6YsDMOTpiwM4QkAAWAFqBUJBU0lDcghPVkFLWlNCVgoyCMGCARIENDExMhjvuQEgg2koguqLAzCC64sDOEJAAVgBagVCQVNJQ3IIT1ZBS1pTQlYKaAoyCMGCARIEMTQwNBiDaSDvuQEox5aMAzDHl4wDOEJAAFgBagVCQVNJQ3IIT1ZBS1pTQlYKMgjBggESBDM1MDkY77kBIOIaKPWXjAMwzJiMAzhCQAFYAWoFQkFTSUNyCE9WQUtaU0JWEgoIARABGAEqAkFBGAEiBAgBEAEoAigDKAQwCw) ## Flights from San Marcos: Essential Travel Information | Cheapest flight from San Marcos | $46 (roundtrip) | | ------------------------------------- | ---------------------------------------------------------------------------------------- | | Best airlines to fly from San Marcos | Frontier Airlines, Alaska Airlines, United, Southwest Airlines, Delta, American Airlines | | Cheapest month to fly from San Marcos | March | | San Marcos IATA code | SAN | | San Marcos Country/State | California | | Airline ticket deals from San Marcos | $46 - $159 | ## How to Find Cheap Flights from San Marcos, CA #### How much is a flight from San Marcos? This week, flights from San Marcos are available between $46 – $159\. #### How to find cheap flights from San Marcos? Expedia makes it easy to compare cheap flights from San Marcos to many destinations. Check out excellent deals on domestic and international flights from San Marcos. Once you select an offer, use our filters and sort by “Price (Lowest)” to see some of the cheapest and suitable options. #### How can I get the best deal on flights from San Marcos? On Expedia, you have some of best airline ticket deals at your fingertips. Whether it’s a beach escape with your partner, a family vacation with your kids, or business trip with colleagues, these low airline ticket prices mean more savings for you. An excellent strategy for finding some of the best deals on flights from San Marcos is to be flexible with your dates. Within each offer, you can compare prices for similar timeframes using our “Show flexible dates” feature. Depending on your destination, direct flights from San Marcos may be more expensive. Airlines with strict bag policies or fees can also impact your costs. #### What is the best airline to fly from San Marcos? At Expedia, we give you all the available options from our reputable partners. Select the airline that best suits your preferences and membership loyalties. You can fly from San Marcos with: Frontier Airlines, Alaska Airlines, United, Southwest Airlines, Delta, American Airlines. #### What is the best month to fly from San Marcos? One of the cheapest times to fly from San Marcos airport(s) is March, based on the current list of flights available now. Prices on plane tickets vary considerably throughout the year due to availability and seasonal demand. #### Are there any last-minute flights from San Marcos? Expedia is the place to find last-minute flights from San Marcos, making it easy for you to compare prices on flights in the near future for different combinations of travel dates and from multiple airlines. We source some of the best deals for you and display some of the best offers available over the next 2 weeks. #### Why book your ticket with Expedia? Booking flights from San Marcos with Expedia is the obvious choice to get low prices, save money, and see more value from every dollar spent. We show you some of the best deals happening right now and provide a vast inventory of airlines and flight routes to choose from, so you can find some of the cheapest flights from San Marcos. You can customize your journey to your timeline, route preferences, budget, rewards programs, and more. #### Can I change/cancel my flight? Some flights can be changed or canceled, but fees and refunds will depend on the unique terms of your flight agreement. Airlines have different rules and restrictions for exchanging or refunding flights. For more information, go to your itinerary or visit our [customer service portal](https://www.expedia.com/service/). We recommend choosing flights with no change fees for the most flexibility. Filter by “Flexible change policies” to see flights with no change fees. \*Data specialists from both ARC and Expedia Group analysed ARC's global flight data to distil actionable information to help people save money on travel. While it's impossible to guarantee when to find the lowest prices, after examining the variables, we were able to observe trends. Analysis based on ARC, round-trip flight data between 1 October 2017 - 30 September 2018 for Economy and Premium cabin ATPs on a global basis. \*Flight schedules are subject to change. ## Explore a world of travel with Expedia - Lodging - Flights - Packages - Cars - Vacation Rentals - Other ### Lodging - [Hotels near California State University San Marcos ](https://www.expedia.com/California-State-University-San-Marcos-Hotels.0-l553248633978679959-0.Travel-Guide-Filter-Hotels) - [Hotels near Palomar College ](https://www.expedia.com/Palomar-College-Hotels.0-l553248633978679882-0.Travel-Guide-Filter-Hotels) - [Hotels near Twin Oaks Golf Club ](https://www.expedia.com/Twin-Oaks-Golf-Club-Hotels.0-l553248621532638732-0.Travel-Guide-Filter-Hotels) - [Hotels near Escondido Country Club ](https://www.expedia.com/Escondido-Country-Club-Hotels.0-l553248621532638738-0.Travel-Guide-Filter-Hotels) - [Hotels near Double Peak Park ](https://www.expedia.com/Double-Peak-Park-Hotels.0-l553248621532638724-0.Travel-Guide-Filter-Hotels) - [Hotels near St. Mark Golf Club ](https://www.expedia.com/St-Mark-Golf-Club-Hotels.0-l553248621532638723-0.Travel-Guide-Filter-Hotels) - [Hotels near Palomar Medical Center ](https://www.expedia.com/Palomar-Medical-Center-Hotels.0-l553248633978679823-0.Travel-Guide-Filter-Hotels) - [Lake San Marcos Hotels ](https://www.expedia.com/Lake-San-Marcos-Hotels.d182988.Travel-Guide-Hotels) - [Pet-friendly Hotels in Lake San Marcos ](https://www.expedia.com/Lake-San-Marcos-Hotels-Pet-Friendly-Hotel.0-0-d182988-tPetfriendlyHotel.Travel-Guide-Filter-Hotels) - [4 Star Hotels in Lake San Marcos ](https://www.expedia.com/4Star-Lake-San-Marcos-Hotels.s40-0-d182988.Travel-Guide-Filter-Hotels) - [Cabin Rentals in Lake San Marcos ](https://www.expedia.com/Lake-San-Marcos-Cabins.d182988-aaCabins.Travel-Guide-Accommodation) - [Cottages in Lake San Marcos ](https://www.expedia.com/Lake-San-Marcos-Cottages.d182988-aaCottages.Travel-Guide-Accommodation) - [Lodges in Lake San Marcos ](https://www.expedia.com/Lake-San-Marcos-Lodges.d182988-aaLodges.Travel-Guide-Accommodation) - 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[Chalets in Lake San Marcos ](https://www.expedia.com/Lake-San-Marcos-Chalets.d182988-aaChalets.Travel-Guide-Accommodation) - [Guest Houses in Lake San Marcos ](https://www.expedia.com/Lake-San-Marcos-Guest-Houses.d182988-aaGuestHouses.Travel-Guide-Accommodation) - [Luxury Hotels in Lake San Marcos ](https://www.expedia.com/Lake-San-Marcos-Hotels-Luxury-Hotel.0-0-d182988-tLuxuryHotel.Travel-Guide-Filter-Hotels) - [Villas in Lake San Marcos ](https://www.expedia.com/Lake-San-Marcos-Villas.d182988-aaVillas.Travel-Guide-Accommodation) - [Boutique Hotels in Lake San Marcos ](https://www.expedia.com/Lake-San-Marcos-Hotels-Boutique-Hotel.0-0-d182988-tBoutiqueHotel.Travel-Guide-Filter-Hotels) - [Hotels with Suites in Lake San Marcos ](https://www.expedia.com/Lake-San-Marcos-Hotels-Hotel-Suites.0-0-d182988-tHotelSuites.Travel-Guide-Filter-Hotels) - [Golf Hotels in Lake San Marcos ](https://www.expedia.com/Lake-San-Marcos-Hotels-Golf-Hotel.0-0-d182988-tGolfHotel.Travel-Guide-Filter-Hotels) - [Hotels with Tennis Courts in Lake San Marcos ](https://www.expedia.com/Lake-San-Marcos-Hotels-Hotels-With-Tennis-Courts.0-0-d182988-tHotelswithTennisCourts.Travel-Guide-Filter-Hotels) - [Condo Rentals in Lake San Marcos ](https://www.expedia.com/Lake-San-Marcos-Condos.d182988-aaCondos.Travel-Guide-Accommodation) - [Vacation Homes in Lake San Marcos ](https://www.expedia.com/Lake-San-Marcos-Private-Vacation-Homes.d182988-aaPrivateVacationHomes.Travel-Guide-Accommodation) - [5 Star Hotels in Lake San Marcos ](https://www.expedia.com/5Star-Lake-San-Marcos-Hotels.s50-0-d182988.Travel-Guide-Filter-Hotels) - [Hotels with Connecting Rooms in Lake San Marcos ](https://www.expedia.com/Lake-San-Marcos-Hotels-Hotels-With-Adjoining-Rooms.0-0-d182988-tHotelswithAdjoiningRooms.Travel-Guide-Filter-Hotels) - [Hotels with Free Parking in Lake San Marcos ](https://www.expedia.com/Lake-San-Marcos-Hotels-Hotels-With-Free-Parking.0-0-d182988-tHotelswithFreeParking.Travel-Guide-Filter-Hotels) - [Hotel with a Concierge Hotels in Lake San Marcos ](https://www.expedia.com/Lake-San-Marcos-Hotels-Hotel-With-A-Concierge.0-0-d182988-tHotelwithaConcierge.Travel-Guide-Filter-Hotels) - [Hotels with Room Service in Lake San Marcos ](https://www.expedia.com/Lake-San-Marcos-Hotels-Hotels-With-Room-Service.0-0-d182988-tHotelswithRoomService.Travel-Guide-Filter-Hotels) - [Hotels near Country Club ](https://www.expedia.com/Country-Club-Escondido-Hotels.0-n553248635976658736-0.Travel-Guide-Filter-Hotels) - [Hotels near Stone Brewing ](https://www.expedia.com/Stone-Brewing-Hotels.0-l553248635976552851-0.Travel-Guide-Filter-Hotels) - [Hotels near San Elijo Hills ](https://www.expedia.com/San-Elijo-Hills-San-Marcos-Hotels.0-n553248635976008450-0.Travel-Guide-Filter-Hotels) - [Hotels near Lake San Marcos Executive Course ](https://www.expedia.com/Lake-San-Marcos-Executive-Course-Hotels.0-l553248621532638722-0.Travel-Guide-Filter-Hotels) - [Hotels near West Ridge ](https://www.expedia.com/West-Ridge-Escondido-Hotels.0-n553248635976470986-0.Travel-Guide-Filter-Hotels) - [Escondido Hotels ](https://www.expedia.com/Escondido-Hotels.d7852.Travel-Guide-Hotels) - [Hotels near North Broadway ](https://www.expedia.com/North-Broadway-Escondido-Hotels.0-n553248635976469667-0.Travel-Guide-Filter-Hotels) - [Gay friendly Hotels in Jesmond Dene ](https://www.expedia.com/Jesmond-Dene-Hotels-LGBT-Welcoming-Hotel.0-0-d3000748626-tLGBTWelcomingHotel.Travel-Guide-Filter-Hotels) - [Villas in Jesmond Dene ](https://www.expedia.com/Jesmond-Dene-Villas.d3000748626-aaVillas.Travel-Guide-Accommodation) - [Aparthotels in Jesmond Dene ](https://www.expedia.com/Jesmond-Dene-Apart-Hotels.d3000748626-aaApartHotels.Travel-Guide-Accommodation) - [Jesmond Dene Hotels ](https://www.expedia.com/Jesmond-Dene-Hotels.d3000748626.Travel-Guide-Hotels) - [Apartments in Jesmond Dene ](https://www.expedia.com/Jesmond-Dene-Apartments.d3000748626-aaApartments.Travel-Guide-Accommodation) - [Cheap Hotels in Escondido ](https://www.expedia.com/Escondido-Hotels-Cheap-Hotels.0-0-d7852-tCheapHotels.Travel-Guide-Filter-Hotels) - [Hotels near Craftsmanship Museum ](https://www.expedia.com/Craftsmanship-Museum-Hotels.0-l553248621532638721-0.Travel-Guide-Filter-Hotels) - [Hotels near Reidy Creek Golf Course ](https://www.expedia.com/Reidy-Creek-Golf-Course-Hotels.0-l553248621532638739-0.Travel-Guide-Filter-Hotels) - [Hotels near Leo Carrillo Ranch Historic Park ](https://www.expedia.com/Leo-Carrillo-Ranch-Historic-Park-Hotels.0-l553248621532638503-0.Travel-Guide-Filter-Hotels) - [Hotels near LEGOLAND® California ](https://www.expedia.com/LEGOLAND-California-Hotels.0-l6051767-0.Travel-Guide-Filter-Hotels) - [Motels in Escondido ](https://www.expedia.com/Escondido-Motels.d7852-aaMotels.Travel-Guide-Accommodation) - [Resorts & Hotels with Spas in Escondido ](https://www.expedia.com/Escondido-Hotels-Spa-Hotel.0-0-d7852-tSpaHotel.Travel-Guide-Filter-Hotels) - [Pet-friendly Hotels in Escondido ](https://www.expedia.com/Escondido-Hotels-Pet-Friendly-Hotel.0-0-d7852-tPetfriendlyHotel.Travel-Guide-Filter-Hotels) - [Hilton Hotels in Escondido ](https://www.expedia.com/Escondido-Hotels-Hilton-Hotels.0-0-d7852--bHiltonHotels.Travel-Guide-Filter-Hotels) - [Winery Hotels in Escondido ](https://www.expedia.com/Escondido-Hotels-Winery-Hotel.0-0-d7852-tWineryHotel.Travel-Guide-Filter-Hotels) - [Casino Hotels in Escondido ](https://www.expedia.com/Escondido-Hotels-Casino-Hotel.0-0-d7852-tCasinoHotel.Travel-Guide-Filter-Hotels) - [5 Star Hotels in Escondido ](https://www.expedia.com/5Star-Escondido-Hotels.s50-0-d7852.Travel-Guide-Filter-Hotels) - [Extended Stay America Hotels in Escondido ](https://www.expedia.com/Escondido-Hotels-Extended-Stay-America.0-0-d7852--bExtendedStayAmerica.Travel-Guide-Filter-Hotels) - [Hotels near California Center For The Arts ](https://www.expedia.com/California-Center-For-The-Arts-Hotels.0-l6277778-0.Travel-Guide-Filter-Hotels) - [La Quinta Inn & Suites Hotels in Escondido ](https://www.expedia.com/Escondido-Hotels-La-Quinta-Inn-Suites.0-0-d7852--bLaQuintaInnSuites.Travel-Guide-Filter-Hotels) - [Romantic Hotels in Escondido ](https://www.expedia.com/Escondido-Hotels-Romantic-Hotel.0-0-d7852-tRomanticHotel.Travel-Guide-Filter-Hotels) - [Adults Only Resorts & in Escondido ](https://www.expedia.com/Escondido-Hotels-Adults-Only-Resorts.0-0-d7852-tAdultsOnlyResorts.Travel-Guide-Filter-Hotels) - [Cabin Rentals in Escondido ](https://www.expedia.com/Escondido-Cabins.d7852-aaCabins.Travel-Guide-Accommodation) - [Hotels with Kitchenettes in Escondido ](https://www.expedia.com/Escondido-Hotels-Hotels-With-Kitchens.0-0-d7852-tHotelswithKitchens.Travel-Guide-Filter-Hotels) - [Hotels with Free Breakfast in Escondido ](https://www.expedia.com/Escondido-Hotels-Hotels-With-Complimentary-Breakfast.0-0-d7852-tHotelswithComplimentaryBreakfast.Travel-Guide-Filter-Hotels) - [Boutique Hotels in Escondido ](https://www.expedia.com/Escondido-Hotels-Boutique-Hotel.0-0-d7852-tBoutiqueHotel.Travel-Guide-Filter-Hotels) - [Beach Hotels in Escondido ](https://www.expedia.com/Escondido-Hotels-Beach-Hotel.0-0-d7852-tBeachHotel.Travel-Guide-Filter-Hotels) ### Flights - [Flights to Lake San Marcos ](https://www.expedia.com/Cheap-Flights-To-Lake-San-Marcos.d182988.Travel-Guide-Flights) - [Flights from Jesmond Dene ](https://www.expedia.com/lp/flights/3000748626/flights-from-jesmond-dene) - [Flights from Escondido ](https://www.expedia.com/lp/flights/7852/flights-from-escondido) - [Flights to Escondido ](https://www.expedia.com/Cheap-Flights-To-Escondido.d7852.Travel-Guide-Flights) ### Packages - [California State University San Marcos ](https://www.expedia.com/California-State-University-San-Marcos-San-Marcos.d553248633978679959.Vacation-Attraction) - [Double Peak Park ](https://www.expedia.com/Double-Peak-Park-San-Marcos.d553248621532638724.Vacation-Attraction) - [Palomar Medical Center ](https://www.expedia.com/Palomar-Medical-Center-Escondido.d553248633978679823.Vacation-Attraction) - [Visit Lake San Marcos ](https://www.expedia.com/Lake-San-Marcos.dx182988) - [Lake San Marcos Vacations ](https://www.expedia.com/Lake-San-Marcos.d182988.Destination-Travel-Guides) - [Stone Brewing ](https://www.expedia.com/Stone-Brewing-Escondido.d553248635976552851.Vacation-Attraction) - [Lake San Marcos Executive Course ](https://www.expedia.com/Lake-San-Marcos-Executive-Course-San-Marcos.d553248621532638722.Vacation-Attraction) - [Visit Jesmond Dene ](https://www.expedia.com/Jesmond-Dene.dx3000748626) - [Craftsmanship Museum ](https://www.expedia.com/Craftsmanship-Museum-Carlsbad.d553248621532638721.Vacation-Attraction) - [Leo Carrillo Ranch Historic Park ](https://www.expedia.com/Leo-Carrillo-Ranch-Historic-Park-Carlsbad.d553248621532638503.Vacation-Attraction) - [Visit Escondido ](https://www.expedia.com/Escondido.dx7852) - [California Center For The Arts ](https://www.expedia.com/California-Center-For-The-Arts-Central-Escondido.d6277778.Vacation-Attraction) ### Cars - [Car rentals near Palomar Medical Center ](https://www.expedia.com/Car-Rentals-In-Palomar-Medical-Center.d553248633978679823.Car-Rental-Guide) - [Car rentals near Lake San Marcos ](https://www.expedia.com/Car-Rentals-In-Lake-San-Marcos.d182988.Car-Rental-Guide) - [Car rentals near Escondido ](https://www.expedia.com/Car-Rentals-In-Escondido.d7852.Car-Rental-Guide) - [Car rentals near Jesmond Dene ](https://www.expedia.com/Car-Rentals-In-Jesmond-Dene.d3000748626.Car-Rental-Guide) - [Car rentals near Leo Carrillo Ranch Historic Park ](https://www.expedia.com/Car-Rentals-In-Leo-Carrillo-Ranch-Historic-Park.d553248621532638503.Car-Rental-Guide) - [Enterprise Rental Cars in Escondido ](https://www.expedia.com/Enterprise-Car-Rentals-In-Escondido.d7852-c15.Car-Rental-Guide-Suppliers) - 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