Title: Cheap Flights to Thornton Junction , IL from CA $174 - Expedia.ca ![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) # Cheap Flights to Thornton Junction , IL from CA $174 [View CA $174 flight on Wed, May 20, 2026](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:YYC,to:ORD,departure:20/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:173.33&airProductToken=AQozCjEI16YBEgQxNjEwGJgWIK4cKPjAjQMw1MKNAzhBQABYAWoFQkFTSUNyCEFUV0QwWkJLEgoIARABGAEqAldTGAEiBAgBEAEoAigDKAQwAQ) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers 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 [Hotels in Thornton Junction](https://expedia.ca/Thornton-Junction-Hotels.d6132212.Travel-Guide-Hotels)[Thornton Junction Car Rentals](https://expedia.ca/Car-Rentals-In-Thornton-Junction.d6132212.Car-Rental-Guide)[Thornton Junction Vacation Packages](https://expedia.ca/Thornton-Junction.d6132212.Destination-Travel-Guides) ## Popular airlines to Thornton Junction - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.ca/Flights-Search?leg1=from:CMH,to:Thornton Junction, Illinois, United States of America,departure:05/03/2026TANYT&leg2=from:Thornton Junction, Illinois, United States of America,to:CMH,departure:12/03/2026TANYT&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.ca/Flights-Search?leg1=from:CMH,to:Thornton Junction, Illinois, United States of America,departure:05/03/2026TANYT&leg2=from:Thornton Junction, Illinois, United States of America,to:CMH,departure:12/03/2026TANYT&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_AA.svg) American Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:CMH,to:Thornton Junction, Illinois, United States of America,departure:05/03/2026TANYT&leg2=from:Thornton Junction, Illinois, United States of America,to:CMH,departure:12/03/2026TANYT&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.ca/Flights-Search?leg1=from:CMH,to:Thornton Junction, Illinois, United States of America,departure:05/03/2026TANYT&leg2=from:Thornton Junction, Illinois, United States of America,to:CMH,departure:12/03/2026TANYT&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.ca/Flights-Search?leg1=from:CMH,to:Thornton Junction, Illinois, United States of America,departure:05/03/2026TANYT&leg2=from:Thornton Junction, Illinois, United States of America,to:CMH,departure:12/03/2026TANYT&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.ca/Flights-Search?leg1=from:CMH,to:Thornton Junction, Illinois, United States of America,departure:05/03/2026TANYT&leg2=from:Thornton Junction, Illinois, United States of America,to:CMH,departure:12/03/2026TANYT&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.ca/Flights-Search?leg1=from:CMH,to:Thornton Junction, Illinois, United States of America,departure:05/03/2026TANYT&leg2=from:Thornton Junction, Illinois, United States of America,to:CMH,departure:12/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) - 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Prices were available within the past 7 days and start at CA $174 for one-way flights and CA $277 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Wed, Jun 3 - Sun, Jun 7 YYC Calgary ORD Chicago CA $277 Roundtrip found 1 hour ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YYC,to:ORD,departure:03/06/2026TANYT&leg2=from:ORD,to:YYC,departure:07/06/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:276.68&airProductToken=AQo4CjYI1YIBEgQxOTY4GJgWIK4cKObcjgMwv96OAzhOQABYAWoKMV9iYXNpY2Vjb3IIR05BMkEyQk4KOAo2CNWCARIEMTE1NhiuHCCYFijKjo8DMLWQjwM4TkAAWAFqCjFfYmFzaWNlY29yCEdOQTJBMkJOEgoIARABGAEqAlVBGAEiBAgBEAEoAigDKAQwCw) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Wed, May 20 - Wed, May 27 YYC Calgary ORD Chicago CA $277 Roundtrip found 1 hour ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YYC,to:ORD,departure:20/05/2026TANYT&leg2=from:ORD,to:YYC,departure:27/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:276.71&airProductToken=AQozCjEIwYIBEgQ0MTYxGJgWIK4cKNzBjQMws8ONAzhCQABYAWoFQkFTSUNyCE9WQUNaTkJYCjMKMQjBggESBDE2MzIYrhwgmBYorpOOAzCSlY4DOEJAAFgBagVCQVNJQ3IIT1ZBQ1pOQlgSCggBEAEYASoCQUEYASIECAEQASgCKAMoBDAL) ![WestJet](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/WS.gif) Wed, May 20 - Wed, May 27 YYC Calgary ORD Chicago CA $277 Roundtrip found 1 hour ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YYC,to:ORD,departure:20/05/2026TANYT&leg2=from:ORD,to:YYC,departure:27/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:276.71&airProductToken=AQozCjEI16YBEgQxNjEwGJgWIK4cKPjAjQMw1MKNAzhBQABYAWoFQkFTSUNyCEFUV0QwWkJLCjMKMQjXpgESBDE2MTEYrhwgmBYo5pGOAzDRk44DOEFAAFgBagVCQVNJQ3IIQVRXRDBaQksSCggBEAEYASoCV1MYASIECAEQASgCKAMoBDAB) ![Porter Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/PD.gif) Thu, Apr 23 - Fri, Apr 24 YUL Montreal MDW Chicago CA $279 Roundtrip found 9 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YUL,to:MDW,departure:23/04/2026TANYT&leg2=from:MDW,to:YUL,departure:24/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:278.60&airProductToken=AQppCjII0IgBEgQyNDUyGJhdIPjMASjqjYsDML-OiwM4TUAAWAFqBUJBU0lDcghNMk4wWkRaTAozCNCIARIEMjM4Nxj4zAEg7LABKIWPiwMw84-LAzhNQAFYAWoFQkFTSUNyCE0yTjBaRFpMCmkKMwjQiAESBDIzOTQY7LABIPjMASjxnYsDMNeeiwM4TUAAWAFqBUJBU0lDcghNMk4wWkRaTAoyCNCIARIEMjQ4Nxj4zAEgmF0o-p-LAzDFoIsDOE1AAVgBagVCQVNJQ3IITTJOMFpEWkwSCggBEAEYASoCUEQYASIECAEQASgCKAMoBDAB) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Fri, Apr 24 - Tue, Apr 28 YYC Calgary ORD Chicago CA $282 Roundtrip found 3 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YYC,to:ORD,departure:24/04/2026TANYT&leg2=from:ORD,to:YYC,departure:28/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:281.80&airProductToken=AQpmCjEIwYYBEgMxMzAYmBYgmM4BKMGZiwMwppuLAzhHQABYAWoFQkFTSUNyCEdOQTRBMkJBCjEIwYYBEgM1MDcYmM4BIK4cKMeciwMwv52LAzhHQAFYAWoFQkFTSUNyCEdOQTRBMkJBCmUKMQjBhgESBDg0NzgYrhwgmF0otMeLAzC3yIsDOEdAAFgBagVCQVNJQ3IIR05BNEEyQkEKMAjBhgESAzMyMxiYXSCYFiipyYsDMLbLiwM4R0ABWAFqBUJBU0lDcghHTkE0QTJCQRIKCAEQARgBKgJBQxgBIgQIARABKAIoAygEMAE) ## Find the cheapest month to fly from Columbus (CMH) to Chicago (ORD) ### July is typically the cheapest month to fly From CA $109 - CA $427 per traveller. ![](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.ca/deals?rfrr=FTG_SPRING_PROMO_) ## Book with confidence Expedia.ca gives you the best tools to secure great deals on flights to Thornton Junction. Use our easy and convenient booking engine to browse nonstop flights and convenient departure points every day of the year. Search airfares from the top airlines to book your perfect flight to Thornton Junction. Whatever your travel needs, you can always rely on Expedia.ca to help you find cheap flights to Thornton Junction. Using our booking engine is simple - just type in your points of travel and preferred dates and Expedia.ca does the rest! If your travel times are flexible, you can find even better bargains by adjusting your flight dates. Browse connecting flights to increase your chances of finding even lower fares. Thanks to Expedia's Best Price Guarantee, you can book your Thornton Junction flights with full confidence knowing that you've found the best deal online. Expedia.ca makes the booking process easy and stress-free by offering support along the entire way. Our friendly staff is available 24 hours a day to provide assistance and help you book your ticket. Call us toll-free at 1-888-397-3342 to answer any questions that you may have about your trip to Thornton Junction. Looking to save even more? Get additional savings by bundling your Thornton Junction flight with a hotel and/or car rental to create a bargain travel package. Early birds can discover terrific savings by booking in advance while last minute travelers can enjoy great last minute deals. With Expedia.ca, there's no shortage of options to save even more on your Thornton Junction trip! ## Travel information | Destination airport | O'Hare Intl. | | ----------------------------- | ------------ | | Destination airport IATA code | ORD | | Destination city name | Chicago | | Roundtrip price | CA $277 | ## Trending flights to Thornton Junction Prices were available within the past 7 days and start at CA $174 for one-way flights and CA $277 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Wed, Jun 3 - Sun, Jun 7 YYC Calgary ORD Chicago CA $277 Roundtrip found 1 hour ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YYC,to:ORD,departure:03/06/2026TANYT&leg2=from:ORD,to:YYC,departure:07/06/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:276.68&airProductToken=AQo4CjYI1YIBEgQxOTY4GJgWIK4cKObcjgMwv96OAzhOQABYAWoKMV9iYXNpY2Vjb3IIR05BMkEyQk4KOAo2CNWCARIEMTE1NhiuHCCYFijKjo8DMLWQjwM4TkAAWAFqCjFfYmFzaWNlY29yCEdOQTJBMkJOEgoIARABGAEqAlVBGAEiBAgBEAEoAigDKAQwCw) \*Available to Expedia members.