Title: State College to Islip cheap flights from $656 (SCE to ISP) - Expedia.com ![Aerial South Shore Long Island During Sunset](https://images.trvl-media.com/place/1638/af7d1356-1b17-43db-b716-450cf420d6e9.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/1638/af7d1356-1b17-43db-b716-450cf420d6e9.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # $656 Cheap Flights from State College (SCE) to Islip (ISP) [View $656 flight on Sun, Mar 22, 2026](https://expedia.com/Flights-Search?trip=oneway&leg1=from:SCE,to:ISP,departure:3/22/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:655.20&airProductToken=AQqQAQowCMGCARIENjAzMxjSICDvWSipp4gDMOmniAM4R0AAWAFqBE1BSU5yCEc3QVpaTk4xCjEIwYIBEgQ0NDA3GO9ZIMGTASiiqYgDMPqpiAM4R0ABWAFqBE1BSU5yCEc3QVpaTk4xCikIuZYBEgMyMTcYwZMBIMh8KN6qiAMwtKuIAzhTQAFYAWoCRVJyA1NJUBIKCAEQARgBKgJBQRgBIgQIARABKAIoAygEMAE) ## Popular airlines from State College, PA (SCE-University Park) to MacArthur Airport (ISP) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.com/Flights-Search?leg1=from:SCE,to:ISP,departure:3/27/2026TANYT&leg2=from:ISP,to:SCE,departure:4/3/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.com/Flights-Search?leg1=from:SCE,to:ISP,departure:3/27/2026TANYT&leg2=from:ISP,to:SCE,departure:4/3/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WN.svg) Southwest Airlines [](https://www.expedia.com/Flights-Search?leg1=from:SCE,to:ISP,departure:3/27/2026TANYT&leg2=from:ISP,to:SCE,departure:4/3/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.com/Flights-Search?leg1=from:SCE,to:ISP,departure:3/27/2026TANYT&leg2=from:ISP,to:SCE,departure:4/3/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_F9.svg) Frontier Airlines [](https://www.expedia.com/Flights-Search?leg1=from:SCE,to:ISP,departure:3/27/2026TANYT&leg2=from:ISP,to:SCE,departure:4/3/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F9"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_B6.svg) JetBlue Airways [](https://www.expedia.com/Flights-Search?leg1=from:SCE,to:ISP,departure:3/27/2026TANYT&leg2=from:ISP,to:SCE,departure:4/3/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"B6"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines [](https://www.expedia.com/Flights-Search?leg1=from:SCE,to:ISP,departure:3/27/2026TANYT&leg2=from:ISP,to:SCE,departure:4/3/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) - ![](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) ## Cheap Flights from State College to Islip (SCE-ISP) Prices were available within the past 7 days and start at $656 for one-way flights and $982 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Wed, Mar 25 - Wed, Apr 1 SCE State College ISP Islip $982 Roundtrip found 1 day ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SCE,to:ISP,departure:3/25/2026TANYT&leg2=from:ISP,to:SCE,departure:4/1/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:981.40&airProductToken=AQqPAQowCMGCARIENjAzMxjSICDvWSiJyYgDMMnJiAM4T0AAWAFqBE1BSU5yCE9VRkhaTk0zCjAIwYIBEgM4NzcY71kgwZMBKKTKiAMw98qIAzhPQAFYAWoETUFJTnIIT1VGSFpOTTMKKQi5lgESAzIxNxjBkwEgyHwovsyIAzCUzYgDOEtAAVgBagJFUnIDS0lQCo8BCikIuZYBEgMyMTIYyHwgwZMBKOeXiQMwvJiJAzhTQABYAWoCRVJyA1NJUAowCMGCARIDODc3GMGTASDvWSiAmokDMN-aiQM4T0ABWAFqBE1BSU5yCE9WRkhaTk0zCjAIwYIBEgQ1OTM0GO9ZINIgKJiciQMw4JyJAzhPQAFYAWoETUFJTnIIT1ZGSFpOTTMSCggBEAEYASoCQUEYASIECAEQASgCKAMoBDAB) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Wed, Mar 25 - Wed, Apr 1 SCE State College ISP Islip $1,062 Roundtrip found 1 day ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SCE,to:ISP,departure:3/25/2026TANYT&leg2=from:ISP,to:SCE,departure:4/1/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1061.91&airProductToken=AQqQAQowCMGCARIENTg2NRjSICDvWSiYx4gDMNvHiAM4TkAAWAFqBE1BSU5yCE4wRkhaTk4xCjEIwYIBEgQ0NTYxGO9ZIMGTASiRyIgDMOnIiAM4TkABWAFqBE1BSU5yCE4wRkhaTk4xCikIuZYBEgMyMTcYwZMBIMh8KL7MiAMwlM2IAzhLQAFYAWoCRVJyA0tJUAqPAQopCLmWARIDMjEyGMh8IMGTASjnl4kDMLyYiQM4U0AAWAFqAkVScgNTSVAKMAjBggESAzg3NxjBkwEg71kogJqJAzDfmokDOE9AAVgBagRNQUlOcghPVkZIWk5NMwowCMGCARIENTkzNBjvWSDSICiYnIkDMOCciQM4T0ABWAFqBE1BSU5yCE9WRkhaTk0zEgoIARABGAEqAkFBGAEiBAgBEAEoAigDKAQwAQ) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Wed, Mar 25 - Wed, Apr 1 SCE State College ISP Islip $1,065 Roundtrip found 1 day ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SCE,to:ISP,departure:3/25/2026TANYT&leg2=from:ISP,to:SCE,departure:4/1/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1064.41&airProductToken=AQqPAQowCMGCARIENjAzMxjSICDvWSiJyYgDMMnJiAM4T0AAWAFqBE1BSU5yCE9VRkhaTk0zCjAIwYIBEgM4NzcY71kgwZMBKKTKiAMw98qIAzhPQAFYAWoETUFJTnIIT1VGSFpOTTMKKQi5lgESAzIxNxjBkwEgyHwovsyIAzCUzYgDOEtAAVgBagJFUnIDS0lQCpABCikIuZYBEgMyMTIYyHwgwZMBKOeXiQMwvJiJAzhTQABYAWoCRVJyA1NJUAoxCMGCARIENDQwNxjBkwEg71kowZqJAzCqm4kDOE5AAVgBagRNQUlOcghOVkFaWk5OMQowCMGCARIENTkzNBjvWSDSICiYnIkDMOCciQM4TkABWAFqBE1BSU5yCE5WQVpaTk4xEgoIARABGAEqAkFBGAEiBAgBEAEoAigDKAQwAQ) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Fri, Apr 10 - Sun, Apr 12 SCE State College ISP Islip $1,137 Roundtrip found 2 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SCE,to:ISP,departure:4/10/2026TANYT&leg2=from:ISP,to:SCE,departure:4/12/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1136.90&airProductToken=AQqQAQowCMGCARIENTkzNhjSICDvWSid-4kDMOD7iQM4UUAAWAFqBE1BSU5yCFEwRkhaTk4xCjEIwYIBEgQyOTI4GO9ZIMGTASi-_IkDMJ39iQM4UUABWAFqBE1BSU5yCFEwRkhaTk4xCikIuZYBEgMyMTcYwZMBIMh8KL6AigMwlIGKAzhTQAFYAWoCRVJyA1NJUAqQAQopCLmWARIDMjEyGMh8IMGTASjHk4oDMJyUigM4U0AAWAFqAkVScgNTSVAKMQjBggESBDExNDcYwZMBIO9ZKOiXigMwyJiKAzhHQAFYAWoETUFJTnIIR1VGV1pOTjEKMAjBggESBDU5MzQY71kg0iAop5mKAzDumYoDOEdAAVgBagRNQUlOcghHVUZXWk5OMRIKCAEQARgBKgJBQRgBIgQIARABKAIoAygEMAE) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Wed, Mar 25 - Wed, Apr 1 SCE State College ISP Islip $1,145 Roundtrip found 1 day ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SCE,to:ISP,departure:3/25/2026TANYT&leg2=from:ISP,to:SCE,departure:4/1/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1144.90&airProductToken=AQqQAQowCMGCARIENTg2NRjSICDvWSiYx4gDMNvHiAM4TkAAWAFqBE1BSU5yCE4wRkhaTk4xCjEIwYIBEgQ0NDgxGO9ZIMGTASjUyIgDMK3JiAM4TkABWAFqBE1BSU5yCE4wRkhaTk4xCikIuZYBEgMyMTcYwZMBIMh8KL7MiAMwlM2IAzhLQAFYAWoCRVJyA0tJUAqQAQopCLmWARIDMjEyGMh8IMGTASjnl4kDMLyYiQM4U0AAWAFqAkVScgNTSVAKMQjBggESBDQ0MDcYwZMBIO9ZKMGaiQMwqpuJAzhOQAFYAWoETUFJTnIITlZBWlpOTjEKMAjBggESBDU5MzQY71kg0iAomJyJAzDgnIkDOE5AAVgBagRNQUlOcghOVkFaWk5OMRIKCAEQARgBKgJBQRgBIgQIARABKAIoAygEMAE) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Wed, Mar 25 - Wed, Apr 1 SCE State College ISP Islip $1,159 Roundtrip found 1 day ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SCE,to:ISP,departure:3/25/2026TANYT&leg2=from:ISP,to:SCE,departure:4/1/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1158.41&airProductToken=AQqWAQozCNWCARIENDUyMhjSICCuHCi2x4gDMLrIiAM4VUAAWAFqB0VDT05PTVlyCFVBQTdQRkVOCjQI1YIBEgQxNjA2GK4cIMGTASiFyogDMJXLiAM4VUABWAFqB0VDT05PTVlyCFVBQTdQRkVOCikIuZYBEgMyMTcYwZMBIMh8KL7MiAMwlM2IAzhLQAFYAWoCRVJyA0tJUAqWAQopCLmWARIDMjEyGMh8IMGTASjnl4kDMLyYiQM4U0AAWAFqAkVScgNTSVAKNAjVggESBDE3MzIYwZMBIK4cKP6YiQMwsZqJAzhMQAFYAWoHRUNPTk9NWXIITEZBMlBGRE4KMwjVggESBDQ1NjEYrhwg0iAohpuJAzD2m4kDOExAAVgBagdFQ09OT01ZcghMRkEyUEZEThIKCAEQARgBKgJVQRgBIgQIARABKAIoAygEMAE) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Fri, Apr 10 - Sun, Apr 12 SCE State College ISP Islip $1,207 Roundtrip found 2 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SCE,to:ISP,departure:4/10/2026TANYT&leg2=from:ISP,to:SCE,departure:4/12/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1206.91&airProductToken=AQqQAQowCMGCARIENTkzNhjSICDvWSid-4kDMOD7iQM4UUAAWAFqBE1BSU5yCFEwRkhaTk4xCjEIwYIBEgQyOTI4GO9ZIMGTASi-_IkDMJ39iQM4UUABWAFqBE1BSU5yCFEwRkhaTk4xCikIuZYBEgMyMTcYwZMBIMh8KL6AigMwlIGKAzhTQAFYAWoCRVJyA1NJUAqQAQopCLmWARIDMjEyGMh8IMGTASjHk4oDMJyUigM4U0AAWAFqAkVScgNTSVAKMQjBggESBDE0MTYYwZMBIO9ZKPmVigMw3JaKAzhWQAFYAWoETUFJTnIIVjdGV1pOTjEKMAjBggESBDU5MTYY71kg0iAoopeKAzDpl4oDOFZAAVgBagRNQUlOcghWN0ZXWk5OMRIKCAEQARgBKgJBQRgBIgQIARABKAIoAygEMAE) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Wed, Mar 25 - Wed, Apr 1 SCE State College ISP Islip $1,242 Roundtrip found 1 day ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SCE,to:ISP,departure:3/25/2026TANYT&leg2=from:ISP,to:SCE,departure:4/1/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1241.40&airProductToken=AQqWAQozCNWCARIENDUyMhjSICCuHCi2x4gDMLrIiAM4VUAAWAFqB0VDT05PTVlyCFVBQTdQRkVOCjQI1YIBEgQxNjA2GK4cIMGTASiFyogDMJXLiAM4VUABWAFqB0VDT05PTVlyCFVBQTdQRkVOCikIuZYBEgMyMTcYwZMBIMh8KL7MiAMwlM2IAzhLQAFYAWoCRVJyA0tJUAqWAQopCLmWARIDMjEyGMh8IMGTASjnl4kDMLyYiQM4U0AAWAFqAkVScgNTSVAKNAjVggESBDE3MzIYwZMBIK4cKP6YiQMwsZqJAzhWQAFYAWoHRUNPTk9NWXIIVkFBMlBGRU4KMwjVggESBDYwMTEYrhwg0iAohJyJAzD2nIkDOFZAAVgBagdFQ09OT01ZcghWQUEyUEZFThIKCAEQARgBKgJVQRgBIgQIARABKAIoAygEMAE) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Fri, Apr 10 - Sun, Apr 12 SCE State College ISP Islip $1,387 Roundtrip found 2 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SCE,to:ISP,departure:4/10/2026TANYT&leg2=from:ISP,to:SCE,departure:4/12/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1386.91&airProductToken=AQqVAQozCNWCARIENDM1ORjSICCIGCiY-4kDMNX7iQM4U0AAWAFqB0VDT05PTVlyCFNGQTBPRkROCjMI1YIBEgM2NDEYiBggwZMBKKb8iQMwjP2JAzhTQAFYAWoHRUNPTk9NWXIIU0ZBME9GRE4KKQi5lgESAzIxNxjBkwEgyHwovoCKAzCUgYoDOFNAAVgBagJFUnIDU0lQCpYBCikIuZYBEgMyMTIYyHwgwZMBKMeTigMwnJSKAzhTQABYAWoCRVJyA1NJUAo0CNWCARIEMTAxNRjBkwEgrhwo2JeKAzCOmYoDOE1AAVgBagdFQ09OT01ZcghNQUEwQUZFTgozCNWCARIENDYxNBiuHCDSICi2mYoDMKaaigM4TUABWAFqB0VDT05PTVlyCE1BQTBBRkVOEgoIARABGAEqAlVBGAEiBAgBEAEoAigDKAQwAQ) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Thu, Mar 19 - Sat, Mar 21 SCE State College ISP Islip $1,457 Roundtrip found 1 day ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SCE,to:ISP,departure:3/19/2026TANYT&leg2=from:ISP,to:SCE,departure:3/21/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1456.90&airProductToken=AQqWAQozCNWCARIENDUyMhjSICCuHCj2g4gDMPqEiAM4TUAAWAFqB0VDT05PTVlyCE1BQTBBRkVOCjQI1YIBEgQxMTE3GK4cIMGTASjchYgDMPGGiAM4TUABWAFqB0VDT05PTVlyCE1BQTBBRkVOCikIuZYBEgMyMTcYwZMBIMh8KP6IiAMw1ImIAzhTQAFYAWoCRVJyA1NJUAqVAQopCLmWARIDMjEyGMh8IMGTASiHnIgDMNyciAM4U0AAWAFqAkVScgNTSVAKMwjVggESAzcyMRjBkwEgiBgoh56IAzDvnogDOFZAAVgBagdFQ09OT01ZcghWRkEwT0ZFTgozCNWCARIENDg0NxiIGCDSICjKn4gDMJGgiAM4VkABWAFqB0VDT05PTVlyCFZGQTBPRkVOEgoIARABGAEqAlVBGAEiBAgBEAEoAigDKAQwAQ) ![](https://forever.travel-assets.com/flex/flexmanager/images/2026/02/06/expedia-sale-2026-desktop-us-ca.jpg?impolicy=fcrop&w=1400&h=600&q=mediumHigh) ## The Annual Vacation Sale Members save up to 40% on hotels and homes. Plan this year’s big trip and save. [Book now](https://expedia.com/deals?rfrr=FTG_SPRING_PROMO_) ## Frequently asked questions ### How much does a flight from State College, PA (SCE-University Park) to Islip, NY (ISP-MacArthur) cost? ### What is the cheapest month to fly from State College, PA (SCE-University Park) to Islip, NY (ISP-MacArthur)? ### Which airlines fly direct from State College, PA (SCE-University Park) to Islip, NY (ISP-MacArthur)? ### What is the cheapest airline that flies from State College, PA (SCE-University Park) to Islip, NY (ISP-MacArthur)? ### How do I find cheap flights from State College, PA (SCE-University Park) to Islip, NY (ISP-MacArthur)? ### What is the best time to fly from State College, PA (SCE-University Park) to Islip, NY (ISP-MacArthur)? ### What is the earliest flight from State College, PA (SCE-University Park) to Islip, NY (ISP-MacArthur)? ### How long does it take to fly from State College, PA (SCE-University Park) to Islip, NY (ISP-MacArthur)? ### Can you fly business or first class from State College, PA (SCE-University Park) to Islip, NY (ISP-MacArthur)? ### How do I earn miles on a State College, PA (SCE-University Park) to Islip, NY (ISP-MacArthur) flight with Expedia? ### Is it cheaper to buy a plane ticket from State College, PA (SCE-University Park) to Islip, NY (ISP-MacArthur) at the last minute? ### Is it cheaper to book a State College, PA (SCE-University Park) to Islip, NY (ISP-MacArthur) flight and hotel package? ### Can I cancel or change the date of my flight from State College, PA (SCE-University Park) to Islip, NY (ISP-MacArthur)? ## Travel information | Origin airport | University Park | | ------------------- | --------------- | | Destination airport | MacArthur | | Roundtrip price | $981 | | Distance | 248 mi | ## Book with confidence # State College to Islip Flights The cheapest times to fly from State College to Islip On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from State College to Islip are during the month of March. You can find some of the cheapest flights from State College to Islip with Expedia's search tool and vast selection of airlines. The best time to book a flight from State College to Islip Sunday is one of the best days to book for cheap flights from State College to Islip: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance. How to find cheap round-trip tickets from State College to Islip Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from State College to Islip in 2026\. You can also book with separate airlines for your outbound and return journeys, from $656 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference\*. This is available for a small fee, and is free to One Key Gold and Platinum tier members. Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap State College to Islip flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps. You could also save big by booking one of Expedia's [vacation packages](https://www.expedia.com/package-deals). Bundling together your State College to Islip airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures. \*Terms apply. Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023\. 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