Title: Cheap Flights to Plains , MT from CA $151 - Expedia.ca ![Wetlands provide critical bird habitat in the Flathead Valley, Montana, USA](https://images.trvl-media.com/place/3000445860/b6673a22-08a2-496d-bed5-3badd04be2ad.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/3000445860/b6673a22-08a2-496d-bed5-3badd04be2ad.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights to Plains , MT from CA $151 [View CA $151 flight on Sat, Apr 25, 2026](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:SEA,to:MSO,departure:25/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:150.50&airProductToken=AQowCi4IwaYBEgQyMDUyGJIBIMx0KJeniwMw9KeLAzhYQABYAWoCU1ZyCE9IMk9YVUJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) [Hotels in Plains](https://expedia.ca/Plains-Hotels.d3000445860.Travel-Guide-Hotels)[Plains Car Rentals](https://expedia.ca/Car-Rentals-In-Plains.d3000445860.Car-Rental-Guide)[Plains Vacation Packages](https://expedia.ca/Plains.d3000445860.Destination-Travel-Guides) ## Popular airlines to Plains - ![](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:Plains, Montana, United States of America,departure:21/04/2026TANYT&leg2=from:Plains, Montana, United States of America,to:CMH,departure:28/04/2026TANYT&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_DL.svg) Delta [](https://www.expedia.ca/Flights-Search?leg1=from:CMH,to:Plains, Montana, United States of America,departure:21/04/2026TANYT&leg2=from:Plains, Montana, United States of America,to:CMH,departure:28/04/2026TANYT&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_UA.svg) United [](https://www.expedia.ca/Flights-Search?leg1=from:CMH,to:Plains, Montana, United States of America,departure:21/04/2026TANYT&leg2=from:Plains, Montana, United States of America,to:CMH,departure:28/04/2026TANYT&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_AA.svg) American Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:CMH,to:Plains, Montana, United States of America,departure:21/04/2026TANYT&leg2=from:Plains, Montana, United States of America,to:CMH,departure:28/04/2026TANYT&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_KL.svg) KLM [](https://www.expedia.ca/Flights-Search?leg1=from:CMH,to:Plains, Montana, United States of America,departure:21/04/2026TANYT&leg2=from:Plains, Montana, United States of America,to:CMH,departure:28/04/2026TANYT&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_AF.svg) Air France [](https://www.expedia.ca/Flights-Search?leg1=from:CMH,to:Plains, Montana, United States of America,departure:21/04/2026TANYT&leg2=from:Plains, Montana, United States of America,to:CMH,departure:28/04/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AF"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_BA.svg) British Airways [](https://www.expedia.ca/Flights-Search?leg1=from:CMH,to:Plains, Montana, United States of America,departure:21/04/2026TANYT&leg2=from:Plains, Montana, United States of America,to:CMH,departure:28/04/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"BA"}}]) - ![](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 Plains? Prices were available within the past 7 days and start at CA $151 for one-way flights and CA $275 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) Sat, May 30 - Sat, Jun 6 SEA Seattle MSO Missoula CA $275 Roundtrip found 5 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:MSO,departure:30/05/2026TANYT&leg2=from:MSO,to:SEA,departure:06/06/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:274.10&airProductToken=AQowCi4IwaYBEgQxMzMwGJIBIMx0KKy2jgMwh7eOAzhYQABYAWoCU1ZyCE9IMkVYVUJOCjAKLgjBpgESBDE0ODEYzHQgkgEomf6OAzCB_44DOFhAAFgBagJTVnIIT0gyRVhVQk4SCggBEAEYASoCQVMYASIECAEQASgCKAMoBDAB) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Sat, Apr 18 - Sun, Apr 26 SEA Seattle MSO Missoula CA $414 Roundtrip found 4 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:MSO,departure:18/04/2026TANYT&leg2=from:MSO,to:SEA,departure:26/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:413.30&airProductToken=AQpECiAIxJgBEgQxMTY1GJIBIPISKJfcigMwlN2KAzhFQABYAQogCMSYARIEMTcyMxjyEiDMdCi83YoDMJfeigM4RUABWAEKRAogCMSYARIEMjc5NRjMdCDyEijor4sDMMiwiwM4RUAAWAEKIAjEmAESBDI4NzQY8hIgkgEo_7CLAzCPsosDOEVAAVgBEgoIARABGAEqAkRMGAEiBAgBEAEoBDAB) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Tue, May 26 - Tue, Jun 2 YVR Vancouver MSO Missoula CA $456 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YVR,to:MSO,departure:26/05/2026TANYT&leg2=from:MSO,to:YVR,departure:02/06/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:455.74&airProductToken=AQpFCiEI1YIBEgQyMDg1GLiNASCDaSiAho4DMK-HjgM4TkAAWAEKIAjVggESBDEwOTIYg2kgzHQo9YeOAzD2iI4DOE5AAVgBCkUKIAjVggESBDU0MTcYzHQgsnEom9WOAzCy1o4DOE5AAFgBCiEI1YIBEgQyNDI5GLJxILiNASja1o4DMO_XjgM4TkABWAESCggBEAEYASoCVUEYASIECAEQASgEMAE) ![Hawaiian Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/HA.gif) Fri, Apr 17 - Tue, Apr 21 SEA Seattle MSO Missoula CA $484 Roundtrip found 4 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:MSO,departure:17/04/2026TANYT&leg2=from:MSO,to:SEA,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:483.80&airProductToken=AQoiCiAIyIIBEgQ2MzMxGJIBIMx0KNjOigMwr8-KAzhVQABYAQoiCiAIyIIBEgQ2MTE5GMx0IJIBKN_8igMwwP2KAzhVQABYARIKCAEQARgBKgJIQRgBIgQIARABKAQwAQ) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Sat, Sep 26 - Sat, Oct 3 YYZ Toronto MSO Missoula CA $645 Roundtrip found 3 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YYZ,to:MSO,departure:26/09/2026TANYT&leg2=from:MSO,to:YYZ,departure:03/10/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:644.83&airProductToken=AQpnCjIIwYIBEgQzNjEwGJjOASCuHCiw7pgDMKPvmAM4QkAAWAFqBUJBU0lDcghPVkFDWk5CWAoxCMGCARIEMzg0OBiuHCDMdCjQ75gDMK_xmAM4QkABWAFqBUJBU0lDcghPVkFDWk5CWAqaAQoxCMGCARIEMzg1MhjMdCCuHCi7uJkDMIq6mQM4QkAAWAFqBUJBU0lDcghPVkFDWk5CWAoxCMGCARIEMjg0MBiuHCDvWSiEvJkDMIa9mQM4QkABWAFqBUJBU0lDcghPVkFDWk5CWAoyCMGCARIENTE5MRjvWSCYzgEozr6ZAzC9v5kDOEJAAVgBagVCQVNJQ3IIT1ZBQ1pOQlgSCggBEAEYASoCQUEYASIECAEQASgCKAMoBDAL) ## Frequently asked questions ### What is the name of Plains' airport? ### What airport is best to fly into Plains? ### How many airlines fly to Plains? ### Which airlines fly to Plains? ### How many nonstop flights are there to Plains? ### Where are the most popular flights to Plains departing from? ### How long is the flight to Plains Airport? ### How to book the cheapest flight to Plains? ### Do you have any tips for my flight to Plains? > - Air travel can be a cruisy experience if you pack the right things. Firstly, you'll want a few toiletry items, such as a toothbrush and lip balm, a fresh set of clothes and a good book. Secondly, find room in your carry-on bag for your phone and charger, any vital medications and perhaps a proper neck pillow as well. Lastly, be sure to bring your passport, travel documents and your credit cards. > > > Do not pack the following items in your hand luggage: > > > - Leave all your full-sized bottles of shampoo and hair gel in your checked luggage. Any gels or liquids in your carry-on suitcase larger than 3.4 ounces (100 millilitres) will be confiscated. Sharp or pointed objects, like your treasured pocket knife, and products which are flammable or explosive, such as aerosol cans, spray paint and fireworks, are also not allowed. > > > What to wear on a flight: > > > - Go for comfort over style. Prepare for changes in temperature by donning layers, and pick flat, slightly roomy footwear like sneakers. > - Deep vein thrombosis (DVT) can pose a risk on long-haul flights. It's the result of blood clots forming due to poor circulation, so do some gentle foot and leg exercises in your seat and consider wearing compression tights or socks. ### How to get through airport security fast when flying to Plains? > - Be sure to keep your passport and travel documents handy. They'll be the first things you'll be asked to show at airport security. > - Next up, both you and your carry-on bag must be X-rayed. To make the process quick and painless, take off anything that is likely to trigger the alarm. Items such as your belt, coat and earphones need to go through the machine. > - All electronic gadgets, including your phone and tablet, must also be scanned separately. > - Any liquids or gels, such as shampoo or hairspray, that you want to take on board must be no greater than 3.4 ounces (100 millilitres). Also, they all must fit inside a quart-size (one litre), zip-lock bag. > - The right choice of footwear can save you several precious minutes. Boots and bulky shoes are often required to be removed and X-rayed separately. Slip-on sneakers usually aren't. > - Knives and other sharp items are prohibited in the cabin. They'll be seized at security, so put them in your checked luggage. ## Book with confidence Expedia.ca gives you the best tools to secure great deals on flights to Plains. 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 Plains. Whatever your travel needs, you can always rely on Expedia.ca to help you find cheap flights to Plains. 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 Plains 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 Plains. Looking to save even more? Get additional savings by bundling your Plains 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 Plains trip! ## Travel information | Destination airport | Missoula Intl. | | ----------------------------- | -------------- | | Destination airport IATA code | MSO | | Destination city name | Missoula | | Roundtrip price | CA $274 | ## Trending flights to Plains Prices were available within the past 7 days and start at CA $151 for one-way flights and CA $275 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, May 26 - Tue, Jun 2 YVR Vancouver MSO Missoula CA $456 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YVR,to:MSO,departure:26/05/2026TANYT&leg2=from:MSO,to:YVR,departure:02/06/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:455.74&airProductToken=AQpFCiEI1YIBEgQyMDg1GLiNASCDaSiAho4DMK-HjgM4TkAAWAEKIAjVggESBDEwOTIYg2kgzHQo9YeOAzD2iI4DOE5AAVgBCkUKIAjVggESBDU0MTcYzHQgsnEom9WOAzCy1o4DOE5AAFgBCiEI1YIBEgQyNDI5GLJxILiNASja1o4DMO_XjgM4TkABWAESCggBEAEYASoCVUEYASIECAEQASgEMAE) \*Available to Expedia members.