Title: Cheap Flights to Thornton , ID from CA $146 - 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 , ID from CA $146 [View CA $146 flight on Wed, Mar 4, 2026](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:DTW,to:IDA,departure:04/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:146.00&airProductToken=AQpECiEIyIIBEgQ0ODgxGOO0ASCSASje4IYDMJfjhgM4VUAAWAEKHwjIggESBDY3MzkYkgEgaCjk44YDMMzkhgM4VUABWAESCggBEAEYASoCSEEYASIECAEQASgEMAE) - [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](https://expedia.ca/Thornton-Hotels.d553248635975876360.Travel-Guide-Hotels)[Thornton Car Rentals](https://expedia.ca/Car-Rentals-In-Thornton.d553248635975876360.Car-Rental-Guide)[Thornton Vacation Packages](https://expedia.ca/Thornton.d553248635975876360.Destination-Travel-Guides) ## Popular airlines - ![](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, Idaho, United States of America,departure:21/02/2026TANYT&leg2=from:Thornton, Idaho, United States of America,to:CMH,departure:28/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) - ![](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, Idaho, United States of America,departure:21/02/2026TANYT&leg2=from:Thornton, Idaho, United States of America,to:CMH,departure:28/02/2026TANYT&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_DL.svg) Delta [](https://www.expedia.ca/Flights-Search?leg1=from:CMH,to:Thornton, Idaho, United States of America,departure:21/02/2026TANYT&leg2=from:Thornton, Idaho, United States of America,to:CMH,departure:28/02/2026TANYT&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.ca/Flights-Search?leg1=from:CMH,to:Thornton, Idaho, United States of America,departure:21/02/2026TANYT&leg2=from:Thornton, Idaho, United States of America,to:CMH,departure:28/02/2026TANYT&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_HA.svg) Hawaiian Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:CMH,to:Thornton, Idaho, United States of America,departure:21/02/2026TANYT&leg2=from:Thornton, Idaho, United States of America,to:CMH,departure:28/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"HA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_KL.svg) KLM [](https://www.expedia.ca/Flights-Search?leg1=from:CMH,to:Thornton, Idaho, United States of America,departure:21/02/2026TANYT&leg2=from:Thornton, Idaho, United States of America,to:CMH,departure:28/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"KL"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AM.svg) Aeromexico [](https://www.expedia.ca/Flights-Search?leg1=from:CMH,to:Thornton, Idaho, United States of America,departure:21/02/2026TANYT&leg2=from:Thornton, Idaho, United States of America,to:CMH,departure:28/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AM"}}]) - ![](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 rewards [Sign in](https://www.expedia.ca/login) ## How much is the cheapest flight to Thornton? Prices were available within the past 7 days and start at CA $146 for one-way flights and CA $300 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Wed, Apr 1 - Sun, Apr 5 SEA Seattle IDA Idaho Falls CA $300 Roundtrip found 6 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:IDA,departure:01/04/2026TANYT&leg2=from:IDA,to:SEA,departure:05/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:299.80&airProductToken=AQovCi0IwaYBEgQzMDI2GJIBIGgo8JqJAzDbm4kDOFhAAFgBagJTVnIITkgyRUFTQk4KLwotCMGmARIEMzMxOBhoIJIBKPDDiQMw7cSJAzhYQABYAWoCU1ZyCE9IMkVBVUJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Tue, Mar 3 - Tue, Mar 10 YVR Vancouver IDA Idaho Falls CA $307 Roundtrip found 21 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YVR,to:IDA,departure:03/03/2026TANYT&leg2=from:IDA,to:YVR,departure:10/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:306.63&airProductToken=AQpvCjYI1YIBEgM2NDAYuI0BIINpKN7ShgMwkNSGAzhOQABYAWoKMV9iYXNpY2Vjb3IIR05LMkEyQk4KNQjVggESBDU5NTAYg2kgaCjn1IYDMNDVhgM4TkAAWAFqCjFfYmFzaWNlY29yCEdOSzJBMkJOCm8KNAjVggESAzU0ORhoIINpKLOjhwMwoaSHAzhOQABYAWoKMV9iYXNpY2Vjb3IIR05LMkEyQk4KNwjVggESBDE5MTAYg2kguI0BKLOmhwMw7qeHAzhOQABYAWoKMV9iYXNpY2Vjb3IIR05LMkEyQk4SCggBEAEYASoCVUEYASIECAEQASgCKAMoBDAL) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Tue, Apr 14 - Sat, Apr 18 YYZ Toronto IDA Idaho Falls CA $347 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YYZ,to:IDA,departure:14/04/2026TANYT&leg2=from:IDA,to:YYZ,departure:18/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:346.63&airProductToken=AQqlAQo2CMSYARIEMzgzNhiYzgEgzHwolquKAzCprIoDOEVAAFgBaglNQUlOQkFTSUNyCFZBVlNIM0JDCjUIxJgBEgQyNjU4GMx8IPISKOKsigMwkK6KAzhFQAFYAWoJTUFJTkJBU0lDcghWQVZTSDNCQwo0CMSYARIEMjYwOBjyEiBoKLywigMw-LCKAzhFQAFYAWoJTUFJTkJBU0lDcghWQVZTSDNCQwqkAQo0CMSYARIEMzg5NRhoIPISKJrcigMw5tyKAzhFQABYAWoJTUFJTkJBU0lDcghWQVZTSDNCQwo0CMSYARIDNzA1GPISIKlRKMPeigMwyuCKAzhFQAFYAWoJTUFJTkJBU0lDcghWQVZTSDNCQwo2CMSYARIENTAwNxipUSCYzgEoi-KKAzD-4ooDOEVAAVgBaglNQUlOQkFTSUNyCFZBVlNIM0JDEgoIARABGAEqAkRMGAEiBAgBEAEoAigDKAQwAQ) ![Hawaiian Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/HA.gif) Tue, Mar 10 - Tue, Mar 24 DTW Detroit IDA Idaho Falls CA $405 Roundtrip found 4 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:DTW,to:IDA,departure:10/03/2026TANYT&leg2=from:IDA,to:DTW,departure:24/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:404.90&airProductToken=AQpECiEIyIIBEgQ0ODgxGOO0ASCSASjio4cDMJumhwM4VUAAWAEKHwjIggESBDY3MzkYkgEgaCjopocDMNCnhwM4VUABWAEKRAofCMiCARIENDk3NhhoIJIBKL_CiAMwusOIAzhVQABYAQohCMiCARIENjY2MRiSASDjtAEo58mIAzDsy4gDOFVAAVgBEgoIARABGAEqAkhBGAEiBAgBEAEoBDAB) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Wed, Apr 15 - Tue, Apr 21 YYZ Toronto IDA Idaho Falls CA $421 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YYZ,to:IDA,departure:15/04/2026TANYT&leg2=from:IDA,to:YYZ,departure:21/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:420.13&airProductToken=AQpGCiIIwYIBEgQxMTExGJjOASCjsQEol7mKAzDxuooDOE9AAFgBCiAIwYIBEgQ2Mjg1GKOxASBoKMDBigMwgcOKAzhPQAFYAQpqCiAIwYIBEgQ0OTQ3GGgg77kBKNz4igMw5fmKAzhPQABYAQoiCMGCARIEMjA0NxjvuQEgo7EBKIr7igMwovyKAzhPQAFYAQoiCMGCARIEMjgwNBijsQEgmM4BKLf9igMw7_6KAzhPQAFYARIKCAEQARgBKgJBQRgBIgQIARABKAgoBDAB) ## Find the cheapest month to fly from Columbus (CMH) to Idaho Falls (IDA) ### January is typically the cheapest month to fly From CA $482 - CA $1,463 per traveller. Expedia.ca gives you the best tools to secure great deals on flights to Thornton. 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. Whatever your travel needs, you can always rely on Expedia.ca to help you find cheap flights to Thornton. 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 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. Looking to save even more? Get additional savings by bundling your Thornton 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 trip! __Flights to Thornton information__ | Destination airport | Idaho Falls Regional | | ----------------------------- | -------------------- | | Destination airport IATA code | IDA | | Destination city name | Idaho Falls | | Roundtrip price | CA $300 | ## Trending flights to Thornton Prices were available within the past 7 days and start at CA $146 for one-way flights and CA $300 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) Tue, Mar 3 - Tue, Mar 10 YVR Vancouver IDA Idaho Falls CA $307 Roundtrip found 21 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YVR,to:IDA,departure:03/03/2026TANYT&leg2=from:IDA,to:YVR,departure:10/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:306.63&airProductToken=AQpvCjYI1YIBEgM2NDAYuI0BIINpKN7ShgMwkNSGAzhOQABYAWoKMV9iYXNpY2Vjb3IIR05LMkEyQk4KNQjVggESBDU5NTAYg2kgaCjn1IYDMNDVhgM4TkAAWAFqCjFfYmFzaWNlY29yCEdOSzJBMkJOCm8KNAjVggESAzU0ORhoIINpKLOjhwMwoaSHAzhOQABYAWoKMV9iYXNpY2Vjb3IIR05LMkEyQk4KNwjVggESBDE5MTAYg2kguI0BKLOmhwMw7qeHAzhOQABYAWoKMV9iYXNpY2Vjb3IIR05LMkEyQk4SCggBEAEYASoCVUEYASIECAEQASgCKAMoBDAL) \*Available to Expedia members.