Title: $27 Cheap Flights to Prospect Heights, IL - Expedia.com ![Default HTG hotel image](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # $27 Cheap Flights to Prospect Heights, IL [View $27 flight on Tue, Mar 10, 2026](https://expedia.com/Flights-Search?trip=oneway&leg1=from:EWR,to:ORD,departure:3/10/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:26.23&airProductToken=AQouCiwIzpYBEgMxMDgYxI0BIK4cKLmmhwMw1KeHAzhQQABYAWoCUlByBlBBMjFOUhIMCAEQARgBKgJOSzIAGAEiBAgBEAEoAigDKAQwDQ) - [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 [Prospect Heights Travel Guide](https://expedia.com/Prospect-Heights.dx9419)[Hotels in Prospect Heights](https://expedia.com/Prospect-Heights-Hotels.d9419.Travel-Guide-Hotels)[Car Rentals in Prospect Heights](https://expedia.com/Car-Rentals-In-Prospect-Heights.d9419.Car-Rental-Guide)[Prospect Heights Vacation Packages](https://expedia.com/Prospect-Heights.d9419.Destination-Travel-Guides) ## Popular airlines to Prospect Heights - ![](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:CMH,to:Prospect Heights, Illinois, United States of America,departure:3/3/2026TANYT&leg2=from:Prospect Heights, Illinois, United States of America,to:CMH,departure:3/10/2026TANYT&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_DL.svg) Delta [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Prospect Heights, Illinois, United States of America,departure:3/3/2026TANYT&leg2=from:Prospect Heights, Illinois, United States of America,to:CMH,departure:3/10/2026TANYT&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_AA.svg) American Airlines [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Prospect Heights, Illinois, United States of America,departure:3/3/2026TANYT&leg2=from:Prospect Heights, Illinois, United States of America,to:CMH,departure:3/10/2026TANYT&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:CMH,to:Prospect Heights, Illinois, United States of America,departure:3/3/2026TANYT&leg2=from:Prospect Heights, Illinois, United States of America,to:CMH,departure:3/10/2026TANYT&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:CMH,to:Prospect Heights, Illinois, United States of America,departure:3/3/2026TANYT&leg2=from:Prospect Heights, Illinois, United States of America,to:CMH,departure:3/10/2026TANYT&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_NK.svg) Spirit Airlines [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Prospect Heights, Illinois, United States of America,departure:3/3/2026TANYT&leg2=from:Prospect Heights, Illinois, United States of America,to:CMH,departure:3/10/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"NK"}}]) - ![](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:CMH,to:Prospect Heights, Illinois, United States of America,departure:3/3/2026TANYT&leg2=from:Prospect Heights, Illinois, United States of America,to:CMH,departure:3/10/2026TANYT&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) ## Today's featured flight deals to Prospect Heights Nonstop Carry-on included Lower price than typical - Columbus (CMH)Chicago (ORD) Fri, Mar 20 Mon, Mar 23 ![American Airlines](https://a.travel-assets.com/air/airlines/aa_sq.svg)American Airlines • Nonstop --- 3-day trip found 21 hours ago 60% less than typical $150 [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:ORD,departure:3/20/2026TANYT&leg2=from:MDW,to:CMH,departure:3/23/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&airOfferToken=v5-sos-503d2ef55f704645a65cb905c07d5589-2927-1-st-v5-sos-503d2ef55f704645a65cb905c07d5589-2942-1~9.S.1~AQoCCAESBwjUBBABGAEoAlgCcABwAHoDYmZzegNiZnOIAYvznVyQAQqQAQGqAQcKA0NNSBAAsgEHCgNDSEkQAA~AQozCjEIwYIBEgQzNDQ2GII7IK4cKLSPiAMwmpCIAzhCQABYAWoFQkFTSUNyCE5WQUlZU0JYEgoIARABGAEqAkFBGAEiBAgBEAEoAigDKAQwCw.AQpgCi4I15wBEgM3MTcY7LABIPMDKKe4iAMwwrmIAzhWQABYAWoDV0dBcgdWWkFWTjJECi4I15wBEgQ0NTY2GPMDIII7KKW8iAMwrL2IAzhWQAFYAWoDV0dBcgdWWkFWTjJEEgoIARABGAEqAldOGAEiBAgBEAEoAigDKAQwAQ&medianPrice=506.00&displayPrice=149.20&src=dflp) - Columbus (CMH)Chicago (ORD) Sun, Mar 29 Mon, Apr 6 ![American Airlines](https://a.travel-assets.com/air/airlines/aa_sq.svg)American Airlines • Nonstop --- 8-day trip found 21 hours ago 45% less than typical $211 [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:ORD,departure:3/29/2026TANYT&leg2=from:ORD,to:CMH,departure:4/6/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&airOfferToken=v5-sos-e61b9335ad8f4e6b8b819803b6f26d23-2058-1-st-v5-sos-e61b9335ad8f4e6b8b819803b6f26d23-2041-1~8.S.1~AQoCCAESBwjUBBABGAEoAlgCcABwAHoDYmZzegNiZnOIAdT7nVyQAQGQARSqAQcKA0NNSBAAsgEHCgNDSEkQAA~AQozCjEIwYIBEgQzNDQ2GII7IK4cKNT0iAMwuvWIAzhCQABYAWoFQkFTSUNyCEdWQUlaTkJaEgoIARABGAEqAkFBGAEiBAgBEAEoAigDKAQwCw.AQpwCjYIxJgBEgQyMzU4GK4cIOO0ASiQ1IkDMOLUiQM4RUAAWAFqCU1BSU5CQVNJQ3IIVkFWU0E1QkMKNgjEmAESBDUzMzkY47QBIII7KJLWiQMwz9aJAzhFQAFYAWoJTUFJTkJBU0lDcghWQVZTQTVCQxIKCAEQARgBKgJETBgBIgQIARABKAIoAygEMAE&medianPrice=526.00&displayPrice=210.60&src=dflp) - Columbus (CMH)Chicago (ORD) Sun, Mar 29 Mon, Apr 6 ![American Airlines](https://a.travel-assets.com/air/airlines/aa_sq.svg)American Airlines • Nonstop --- 8-day trip found 21 hours ago 45% less than typical $211 [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:ORD,departure:3/29/2026TANYT&leg2=from:ORD,to:CMH,departure:4/6/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&airOfferToken=v5-sos-8187327734044288a5fa1a5ed1fd1758-2408-1-st-v5-sos-8187327734044288a5fa1a5ed1fd1758-2391-1~8.S.1~AQoCCAESBwjUBBABGAEoAlgCcABwAHoDYmZzegNiZnOIAcz7nVyQAQCQARSqAQcKA0NNSBAAsgEHCgNDSEkQAA~AQozCjEIwYIBEgQzNDQ2GII7IK4cKNT0iAMwuvWIAzhCQABYAWoFQkFTSUNyCEdWQUlaTkJaEgoIARABGAEqAkFBGAEiBAgBEAEoAigDKAQwCw.AQpwCjYIxJgBEgQzNzYxGK4cIOO0ASju1IkDMMXViQM4RUAAWAFqCU1BSU5CQVNJQ3IIVkFWU0E1QkMKNgjEmAESBDUzMzkY47QBIII7KJLWiQMwz9aJAzhFQAFYAWoJTUFJTkJBU0lDcghWQVZTQTVCQxIKCAEQARgBKgJETBgBIgQIARABKAIoAygEMAE&medianPrice=526.00&displayPrice=210.60&src=dflp) - Columbus (CMH)Chicago (MDW) Wed, Mar 25 Sun, Mar 29 ![Southwest Airlines](https://a.travel-assets.com/air/airlines/wn_sq.svg)Southwest Airlines • Nonstop --- 3-day trip found 14 hours ago 65% less than typical $97 [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:MDW,departure:3/25/2026TANYT&leg2=from:ORD,to:CMH,departure:3/29/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&airOfferToken=v5-sos-10d65ade786b4d7990f90c04bb12a7cc-2822-1-st-v5-sos-10d65ade786b4d7990f90c04bb12a7cc-2696-1~9.S.1~AQoCCAESBwjUBBABGAEoAlgCcABwAHoDYmZzegNiZnOIAY2_n1yQAQSQAQCqAQcKA0NNSBAAsgEHCgNDSEkQAg~AQoxCi8I15wBEgQxOTQ2GII7IOywASjpyogDMLnLiAM4VkAAWAFqA1dHQXIHVkJOVkgyRBIKCAEQARgBKgJXThgBIgQIARABKAIoAygEMAE.AQozCjEIwYIBEgQzMzUzGK4cIII7KJD1iAMw8PWIAzhCQABYAWoFQkFTSUNyCFNXQUlaTkJaEgoIARABGAEqAkFBGAEiBAgBEAEoAigDKAQwCw&medianPrice=384.00&displayPrice=96.80&src=dflp) ## How much is the cheapest flight to Prospect Heights? Prices were available within the past 7 days and start at $27 for one-way flights and $53 for 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) Tue, Mar 10 - Wed, Mar 11 ATL Atlanta ORD Chicago $66 Roundtrip found 2 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ATL,to:ORD,departure:3/10/2026TANYT&leg2=from:ORD,to:ATL,departure:3/11/2026TANYT&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=AQowCi4IxnISBDE1OTUY4Fwgrhwo2qOHAzDtpIcDOEVAAFgBagRQQ18xcgdLMjFFWFMyCjAKLgjGchIEMTQ0MhiuHCDgXCiysIcDMMCxhwM4RUAAWAFqBFBDXzFyB0syMVhYUzISCggBEAEYASoCRjkYASIECAEQASgCKAMwDQ) ![Spirit Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/nk.gif) Sat, Apr 18 - Mon, Apr 20 ATL Atlanta ORD Chicago $79 Roundtrip just found [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:ATL,to:ORD,departure:4/18/2026TANYT&leg2=from:ORD,to:ATL,departure:4/20/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:78.98&airProductToken=AQotCisIzpYBEgMzOTcY4Fwgrhwo1NqKAzDa24oDOFdAAFgBagJSUHIGV0EyMVYyCi4KLAjOlgESBDE4MjQYrhwg4Fwov_CKAzC28YoDOFdAAFgBagJSUHIGV0EyMU5SEgwIARABGAEqAk5LMgAYASIECAEQASgCKAMoBDAN) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Sat, May 16 - Sat, May 23 MSP Minneapolis ORD Chicago $85 Roundtrip found 1 day ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:MSP,to:ORD,departure:5/16/2026TANYT&leg2=from:ORD,to:MSP,departure:5/23/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:84.81&airProductToken=AQo3CjUI1YIBEgMzMDcYzHwgrhwo1JCNAzC2kY0DOE5AAFgBagoxX2Jhc2ljZWNvcghHQUYyQUtCUwo3CjUI1YIBEgM1MzAYrhwgzHwox-aNAzCt540DOE5AAFgBagoxX2Jhc2ljZWNvcghHQUYyQUtCUxIKCAEQARgBKgJVQRgBIgQIARABKAIoAygEMAs) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Wed, Mar 18 - Tue, Mar 24 MSP Minneapolis MDW Chicago $97 Roundtrip found 6 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:MSP,to:MDW,departure:3/18/2026TANYT&leg2=from:MDW,to:MSP,departure:3/24/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:96.80&airProductToken=AQo4CjYIxJgBEgQzNzc4GMx8IOywASiw-YcDMJ76hwM4RUAAWAFqCU1BSU5CQVNJQ3IIVkFWU0MyQkMSCggBEAEYASoCREwYASIECAEQASgCKAMoBDAB) ![Southwest Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/wn.gif) Wed, Mar 18 - Tue, Mar 24 MSP Minneapolis MDW Chicago $97 Roundtrip found 6 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:MSP,to:MDW,departure:3/18/2026TANYT&leg2=from:MDW,to:MSP,departure:3/24/2026TANYT&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=AQoxCi8I15wBEgQzOTA0GMx8IOywASjE_ocDMJ7_hwM4VkAAWAFqA1dHQXIHVkJOVkgyRAoxCi8I15wBEgQxMjU0GOywASDMfCjRw4gDMKvEiAM4VkAAWAFqA1dHQXIHVkJOVkgyRBIKCAEQARgBKgJXThgBIgQIARABKAIoAygEMAE) ## Alternative airports near Prospect Heights Prices were available within the past 7 days. Prices and availability are subject to change. [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:ORD,departure:3/3/2026TANYT&leg2=from:ORD,to:CMH,departure:3/10/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) ORD O'Hare Intl. Cheapest 17 min [Flights from $257 ](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:ORD,departure:3/3/2026TANYT&leg2=from:ORD,to:CMH,departure:3/10/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:MDW,departure:3/3/2026TANYT&leg2=from:MDW,to:CMH,departure:3/4/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) MDW Midway Intl. 42 min [Flights from $417 ](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:MDW,departure:3/3/2026TANYT&leg2=from:MDW,to:CMH,departure:3/4/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) ## Find the cheapest month to fly from Columbus (CMH) to Chicago (ORD) ### July is typically the cheapest month to fly From $77 - $303 per traveler. ![](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 ### What month is the cheapest to fly to Prospect Heights? ### Which US cities have the cheapest flights to Prospect Heights? > - Burlington (BRL, BTV) > - Quincy (UIN) > - Owensboro (OWB) > - Kirksville (IRK) > - Manistee (MBL) > > > with prices usually starting around $39. ### Which US cities fly direct to Prospect Heights? > - New York (JFK, LGA) > - Newark (EWR) > - Los Angeles (LAX) > - Dallas (DAL, DFW) > - Houston (IAH) > > > To Midway Intl. (MDW) > - Atlanta (ATL) > - Dallas (DAL, DFW) > - Orlando (MCO) > - Phoenix (PHX) > - Los Angeles (LAX) > > > To General Mitchell Intl. (MKE) > - Chicago (MDW, ORD) > - Denver (DEN) > - New York (JFK, LGA) > - Newark (EWR) > - Phoenix (PHX) ### How to find a cheap flight to Prospect Heights? ### Which airlines fly to Prospect Heights? > - American Airlines > - Delta > - Frontier Airlines > - Spirit Airlines > - United > - United Airlines > - Volaris ### Where do you fly into Prospect Heights? > - The closest major airport is Chicago, IL (ORD-O'Hare Intl.), about 8 miles from the city center, which is a hub for United, American Airlines, and Delta, with other airlines like Frontier Airlines, Air Canada also operating here. > - Milwaukee, WI (MKE-General Mitchell Intl.) is another option, about 59 miles away, serving as a hub for United, Delta, and WN, with American Airlines, Alaska Airlines also operating here. > - Chicago, IL (MDW-Midway Intl.), about 25 miles away, serving as a hub for WN, Delta, and Frontier Airlines, with Volaris, Porter Airlines also operating here. > - South Bend, IN (SBN-South Bend Intl.), about 116 miles away, serving as a hub for United, American Airlines, and Delta, with MX, OO also operating here. ### What is the cheapest airport to fly to in Prospect Heights? ### Which budget airlines fly to Prospect Heights? > - Southwest Airlines: serves Chicago (ORD), Chicago (MDW), Milwaukee (MKE) > - Spirit Airlines: serves Chicago (ORD), Milwaukee (MKE) > - Frontier Airlines: serves Chicago (ORD), Chicago (MDW), Milwaukee (MKE) > - Volaris: serves Chicago (ORD), Chicago (MDW) > - JetBlue Airways: serves Chicago (ORD), Milwaukee (MKE) > - Viva Aerobus: flies to Chicago (ORD) > - Sun Country Airlines: serves Chicago (ORD), Milwaukee (MKE) > - WestJet: serves Chicago (ORD), Chicago (MDW), Milwaukee (MKE), South Bend (SBN) > - Breeze: flies to South Bend (SBN) > - Arajet: flies to Chicago (ORD) ### What is the best month to visit Prospect Heights? ### How far in advance should I book a flight to Prospect Heights? ### What day of the week is cheapest day to buy a plane ticket to Prospect Heights? ### What is the most expensive month to fly to Prospect Heights? ### How far is the airport from central Prospect Heights? > - Chicago, IL (MDW-Midway Intl.): 10 miles southwest > - Chicago, IL (ORD-O'Hare Intl.): 20 miles west > > > These options give you flexibility when planning your trip. ### How can I track flight prices to Prospect Heights? ### How to get a cheap last-minute flight to Prospect Heights? ### Can I earn miles booking a flight to Prospect Heights with Expedia? ### Can I save money by booking a Prospect Heights trip package? ### Can I change or cancel my flight to Prospect Heights? \*Flight schedules are subject to change. ## Book with confidence # Tips to find the cheapest flights to Prospect Heights **The cheapest day to fly** Get started finding a cheap flight to Prospect Heights on Expedia by either choosing a deal on this page or entering into the search bar your travel dates, origin airport, and whether you want roundtrip or one-way airfare. You can filter for flexibility, number of stops, airline, and departure/arrival times to find the best flight for you. **The cheapest month to fly** March is the cheapest month to fly to Prospect Heights. This coincides with the low season when fewer people travel. Whichever month you travel in, though, be sure to book at least a month in advance if you want to score cheap tickets to Prospect Heights. ARC's data shows that domestic flights booked 28 days or more before departure are typically 24% cheaper than those booked last minute. **The most affordable time to book a flight** Typically, a Sunday can be the cheapest time to book a flight to Prospect Heights, according to ARC’s data. On average, you could save between 6% and 13% by booking on a Sunday instead of a Friday, which is the most expensive day to make a reservation. **The cheapest round-trip tickets to Prospect Heights** The lowest price for round-trip flights to Prospect Heights in 2026 starts from from $53, while one-way tickets start from from $27\. Expedia's effective search tool is one of the best ways to find a budget airfare. Simply enter your dates, and within seconds, it'll show you a vast selection of the cheapest flights to Prospect Heights. If you have a preferred departure time or airline, you can use the handy filters to customize your search. **The cheapest airlines flying to Prospect Heights** Frontier Airlines, Spirit Airlines, American Airlines, Delta, United, Southwest Airlines are just some of the airlines that can typically offer cheap tickets to Prospect Heights. You can find their most affordable flights by using the “airline” search filter and then sorting prices from low to high. As a trusted partner of the world's leading airlines, Expedia offers you some of the best airfare deals to Prospect Heights and countless more destinations worldwide. **The most affordable airports to fly into** To view the cheapest airports to fly into for Prospect Heights, simply order your search results from lowest to highest price. Expedia's search tool compares flight prices for all airports close to your destination, so you don't have to manually search them one by one to find the cheapest flight to Prospect Heights. If you have a preferred place to fly into, take advantage of the “arrival airport” filter to narrow down your search on Expedia. **Save with a package** With Expedia's amazing [package deals](https://www.expedia.com/package-deals), you could save hundreds of dollars by booking your Prospect Heights plane tickets together with your accommodations, car rental, or activities. Just select the search wizard's “package” option to view some of the cheapest deals. Look out for the green savings label to see how much you're saving. **Date flexibility for the cheapest flights to Prospect Heights** If you can be flexible with your travel dates, it's a good idea to broaden your search by comparing prices on different days. This will open up more options, meaning you could uncover a less expensive flight to Prospect Heights. **Stopover savings** The cheapest tickets to Prospect Heights are sometimes those with a stopover. Book one of these flights, and you'll change planes at an airport en route to Prospect Heights. While the overall travel time might be longer than a non-stop flight, you may decide it's worth it for the money saved. **Get Expedia's Price Drop Protection** Price Drop Protection means that if your flight gets cheaper after booking, you'll be credited the difference\*. This gives you peace of mind that you're getting one of the cheapest flights to Prospect Heights for your chosen departure. Expedia's Price Drop Protection is available for a small fee but is free to One Key Gold and Platinum tier members. \*Terms apply. **Use our Price Tracking feature** Expedia's Price Tracking feature is another great tool that removes the guesswork from finding cheap flights to Prospect Heights. Simply download the free Expedia app to your smart device and activate Prospect Heights flight price alerts for your travel dates. There's even a price predictor tool that uses historical data to indicate the best time to book, giving you peace of mind that you'll nab the lowest prices. **Book with Expedia** As well as Price Drop Protection and Price Tracking, Expedia's close partnership with a vast selection of the world's leading airlines means you're sure to find cheap flights to Prospect Heights. Plus, the One Key rewards program lets you earn real cash rewards on most bookings that you can use to save money on future trips. Best of all, it's free to join, and members often unlock exclusive discounts, too. Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023\. The percentages you see are averages. ## Travel information | Destination airport | O'Hare Intl. | | ----------------------------- | ------------ | | Destination airport IATA code | ORD | | Destination city name | Chicago | | Roundtrip price | $52 | ## Trending flights to Prospect Heights Prices were available within the past 7 days and start at $27 for one-way flights and $53 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Spirit Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/nk.gif) Tue, Mar 10 - Wed, Mar 11 EWR New York ORD Chicago $53 Roundtrip found 2 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:EWR,to:ORD,departure:3/10/2026TANYT&leg2=from:ORD,to:EWR,departure:3/11/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:52.46&airProductToken=AQouCiwIzpYBEgMxMDgYxI0BIK4cKLmmhwMw1KeHAzhQQABYAWoCUlByBlBBMjFOUgouCiwIzpYBEgMxMDcYrhwgxI0BKJewhwMwmLGHAzhQQABYAWoCUlByBlBBMjFOUhIKCAEQARgBKgJOSxgBIgQIARABKAIoAygEMA0) ## Explore a world of travel with Expedia - Lodging - Flights - Packages - Cars - Vacation Rentals - Other - [Chicago Hotels ](https://www.expedia.com/Chicago-Hotels.d178248.Travel-Guide-Hotels) - [Hotels near Prospect Heights City Hall ](https://www.expedia.com/Prospect-Heights-City-Hall-Hotels.0-l6187063-0.Travel-Guide-Filter-Hotels) - 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