Title: CA $171 Cheap Flights from Seattle (SEA) to Montreal (YMQ) - Expedia.ca ![](https://images.trvl-media.com/place/178288/d253b73b-7d51-4e00-ab6c-3e0d65d1c443.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/178288/d253b73b-7d51-4e00-ab6c-3e0d65d1c443.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # CA $171 Cheap Flights from Seattle (SEA) to Montreal (YMQ) [View CA $171 flight on Tue, Feb 24, 2026](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:SEA,to:YUL,departure:24/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:170.22&airProductToken=AQqYAQowCMGCARIDODg1GJIBIK4cKKSDhgMwmoWGAzhCQABYAWoFQkFTSUNyCE9WQUhVU0JYCjEIwYIBEgQzMDU2GK4cIO9ZKJaHhgMwioiGAzhCQAFYAWoFQkFTSUNyCE9WQUhaU0JYCjEIwYIBEgQ2MDI3GO9ZIJhdKLiIhgMwoYmGAzhCQAFYAWoFQkFTSUNyCE9WQUhaU0JYEgoIARABGAEqAkFBGAEiBAgBEAEoAigDKAQwCw) - [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 ## Popular airlines from Seattle-Tacoma International Airport (SEA) to Montreal - ![WestJet](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WS.svg) WestJet [](https://www.expedia.ca/Flights-Search?leg1=from:sea,to:ymq,departure:07/11/2025TANYT&leg2=from:ymq,to:sea,departure:14/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WS"}}]) - ![Delta](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:sea,to:ymq,departure:07/11/2025TANYT&leg2=from:ymq,to:sea,departure:14/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![American Airlines](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:sea,to:ymq,departure:07/11/2025TANYT&leg2=from:ymq,to:sea,departure:14/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![Air Canada](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AC.svg) Air Canada [](https://www.expedia.ca/Flights-Search?leg1=from:sea,to:ymq,departure:07/11/2025TANYT&leg2=from:ymq,to:sea,departure:14/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AC"}}]) - ![United](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:sea,to:ymq,departure:07/11/2025TANYT&leg2=from:ymq,to:sea,departure:14/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) ![notification illustration](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\* ![deals illustration](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\* ![trophy illustration](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) ## Cheap flights from Seattle (SEA) to Montreal (YMQ) Prices were available within the past 7 days and start at CA $171 for one-way flights and CA $512 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![WestJet](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/WS.gif) Sun, Mar 1 - Wed, Mar 11 SEA Seattle YUL Montreal CA $512 Roundtrip found 5 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:YUL,departure:01/03/2026TANYT&leg2=from:YUL,to:SEA,departure:11/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:511.95&airProductToken=AQpDCiAI16YBEgQxNTUzGJIBIJgWKK6_hgMwksCGAzhFQABYAQofCNemARIDNTU4GJgWIJhdKLHDhgMwtcWGAzhFQAFYAQpDCh8I16YBEgM1NTkYmF0gmBYovrCHAzDhsocDOEVAAFgBCiAI16YBEgQxNTUyGJgWIJIBKOm5hwMw27qHAzhFQAFYARIKCAEQARgBKgJXUxgBIgQIARABKAQwAQ) ![WestJet](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/WS.gif) Tue, Mar 17 - Sun, Mar 22 SEA Seattle YUL Montreal CA $514 Roundtrip found 15 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:YUL,departure:17/03/2026TANYT&leg2=from:YUL,to:SEA,departure:22/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:513.15&airProductToken=AQpDCiAI16YBEgQxNTUzGJIBIJgWKK7zhwMwkvSHAzhFQABYAQofCNemARIDNTU4GJgWIJhdKLH3hwMwtfmHAzhFQAFYAQpDCh8I16YBEgM1NTkYmF0gmBYonqyIAzDBrogDOEVAAFgBCiAI16YBEgQxNTUyGJgWIJIBKMm1iAMwu7aIAzhFQAFYARIKCAEQARgBKgJXUxgBIgQIARABKAQwAQ) ![WestJet](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/WS.gif) Sun, Jan 11 - Tue, Jan 27 SEA Seattle YUL Montreal CA $540 Roundtrip found 3 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:YUL,departure:11/01/2026TANYT&leg2=from:YUL,to:SEA,departure:27/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:539.30&airProductToken=AQplCjEI16YBEgQxNTUzGJIBIJgWKI6YggMw8piCAzhFQABYAWoFQkFTSUNyCExUUUQwWkJLCjAI16YBEgM1NTgYmBYgmF0okZyCAzCVnoIDOEVAAVgBagVCQVNJQ3IITFRRRDBaQksSCggBEAEYASoCV1MYASIECAEQASgCKAMoBDAB) ![WestJet](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/WS.gif) Sun, Mar 22 - Sun, Apr 5 SEA Seattle YUL Montreal CA $564 Roundtrip found 5 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:YUL,departure:22/03/2026TANYT&leg2=from:YUL,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:563.71&airProductToken=AQpDCiAI16YBEgQxNTUzGJIBIJgWKM6riAMwsqyIAzhMQABYAQofCNemARIDNTU4GJgWIJhdKNGviAMw1bGIAzhMQAFYAQpDCh8I16YBEgM1NjEYmF0gmBYo8MOJAzCTxokDOExAAFgBCiAI16YBEgQxNTUyGJgWIJIBKOnHiQMw28iJAzhMQAFYARIKCAEQARgBKgJXUxgBIgQIARABKAQwAQ) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Sat, Jan 24 - Mon, Feb 2 SEA Seattle YUL Montreal CA $565 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:YUL,departure:24/01/2026TANYT&leg2=from:YUL,to:SEA,departure:02/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:564.79&airProductToken=AQqbAQoyCMGCARIENjQxMxiSASCLuAEoyKyDAzDwrYMDOEJAAFgBagVCQVNJQ3IIR1ZBSVpTQlgKMgjBggESBDI0MzYYi7gBIK4cKL-ugwMwsbCDAzhCQAFYAWoFQkFTSUNyCEdWQUlaU0JYCjEIwYIBEgQzODMzGK4cIJhdKI2zgwMwl7SDAzhCQAFYAWoFQkFTSUNyCE9WQUhaU0JYCpkBCjEIwYIBEgQ2MDI5GJhdIO9ZKM6KhAMwzYuEAzhCQABYAWoFQkFTSUNyCE9WQUhaU0JYCjEIwYIBEgQxNDUyGO9ZIK4cKPOMhAMwj46EAzhCQAFYAWoFQkFTSUNyCE9WQUhaU0JYCjEIwYIBEgQyMjAyGK4cIJIBKOCQhAMw_JKEAzhCQAFYAWoFQkFTSUNyCE9WQUlYU0JYEgoIARABGAEqAkFBGAEiBAgBEAEoAigDKAQwCw) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Sat, Jan 24 - Mon, Feb 2 SEA Seattle YUL Montreal CA $584 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:YUL,departure:24/01/2026TANYT&leg2=from:YUL,to:SEA,departure:02/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:583.57&airProductToken=AQqfAQovCMGmARIEMjAzMxiSASC4jQEoyauDAzCFrIMDOEdAAFgBagJNQXIIR0gyT1hWTU4KNQjQiAESAzMxOBi4jQEgmM4BKM2tgwMw3a-DAzhYQAFYAWoIU1RBTkRBUkRyCFg2QzBaUkxTCjUI0IgBEgQ3NDcxGJjOASCYXSiUsYMDMOmxgwM4WEABWAFqCFNUQU5EQVJEcghYNkMwWlJMUxIKCAEQARgBKgJQRBgBIgQIARABKAIoAygEMAE) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Sat, Jan 24 - Mon, Feb 2 SEA Seattle YUL Montreal CA $587 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:YUL,departure:24/01/2026TANYT&leg2=from:YUL,to:SEA,departure:02/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:586.60&airProductToken=AQqYAQovCMGmARIEMzMxORiSASC4jQEozKiDAzCOqYMDOE9AAFgBagJNQXIIT0gyT1hVTU4KMgjXpgESAzcxNBi4jQEgmM4BKPepgwMwjayDAzhMQAFYAWoFRUNPTk9yCExDVkQwTEVLCjEI16YBEgM4MTYYmM4BIJhdKN-sgwMwt62DAzhMQAFYAWoFRUNPTk9yCExDVkQwTEVLEgoIARABGAEqAldTGAEiBAgBEAEoAigDKAQwAQ) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Sat, Jan 24 - Mon, Feb 2 SEA Seattle YUL Montreal CA $592 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:YUL,departure:24/01/2026TANYT&leg2=from:YUL,to:SEA,departure:02/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:591.70&airProductToken=AQqjAQo0CMSYARIDNjUyGJIBIOBcKKeugwMwxrCDAzhFQABYAWoJTUFJTkJBU0lDcghWQVZTSDNCQwo0CMSYARIDNTU3GOBcIMsBKMaxgwMwz7KDAzhFQAFYAWoJTUFJTkJBU0lDcghWQVZTSDNCQwo1CMSYARIENTE5NxjLASCYXSiStYMDMPW1gwM4RUABWAFqCU1BSU5CQVNJQ3IIVkFWU0EwQlESCggBEAEYASoCREwYASIECAEQASgCKAMoBDAB) ![WestJet](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/WS.gif) Wed, Feb 18 - Sat, Feb 28 SEA Seattle YUL Montreal CA $598 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:YUL,departure:18/02/2026TANYT&leg2=from:YUL,to:SEA,departure:28/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:597.12&airProductToken=AQplCjEI16YBEgQxNTUzGJIBIJgWKM7DhQMwssSFAzhFQABYAWoFQkFTSUNyCExUUUQwWkJLCjAI16YBEgM1NTgYmBYgmF0o0ceFAzDVyYUDOEVAAVgBagVCQVNJQ3IITFRRRDBaQksSCggBEAEYASoCV1MYASIECAEQASgCKAMoBDAB) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Sun, Mar 22 - Tue, Mar 24 SEA Seattle YUL Montreal CA $774 Roundtrip found 15 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:YUL,departure:22/03/2026TANYT&leg2=from:YUL,to:SEA,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:773.78&airProductToken=AQpECiAI1YIBEgQyNjUxGJIBIK4cKL-kiAMwrKaIAzhLQABYAQogCNWCARIEODQ1OBiuHCCYXSjvqogDMOyriAM4R0ABWAEKRAogCNWCARIEMzYwMBiYXSCuHCi0vIgDMOi9iAM4R0AAWAEKIAjVggESBDE4MDEYrhwgkgEo18GIAzDyw4gDOEtAAVgBEgoIARABGAEqAlVBGAEiBAgBEAEoBDAB) ## Find the cheapest month to fly from Seattle (SEA) to Montreal (YMQ) ### October is typically the cheapest month to fly From CA $416 - CA $1,044 per traveller. ## Alternative airports near Montreal Prices were available within the past 7 days. Prices and availability are subject to change. [](https://www.expedia.ca/Flights-Search?leg1=from:SEA,to:YUL,departure:07/11/2025TANYT&leg2=from:YUL,to:SEA,departure:17/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) YUL Pierre Elliott Trudeau Intl. CheapestClosest 17 min [Flights from CA $938](https://www.expedia.ca/Flights-Search?leg1=from:SEA,to:YUL,departure:07/11/2025TANYT&leg2=from:YUL,to:SEA,departure:17/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) Flight from Seattle to Montreal (SEA - YUL) route information | Origin airport | Seattle - Tacoma Intl. | | --- | --- | | Destination airport | Pierre Elliott Trudeau Intl. | | Roundtrip price | CA $512 | | Distance | 3643 km | ## Seattle to Montreal Flights **The easy way to book your flights from Seattle to Montreal**  With Expedia, it’s simple to find and book flights to Montreal from Seattle whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to YMQ-All Airports, too.   Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Seattle to Montreal today, tomorrow, or this week.   **Save dollars with cheap flights from Seattle - Tacoma Intl., SEA to YMQ-All Airports, YMQ**  Sort your search results by price to find great deals on your flight from Seattle to Montreal—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Montreal from Seattle currently is just CA $512 rising to CA $774.   Here are more money-saving tips:  - Fly in March when flight prices are normally at their lowest  - Book about a month to 6 weeks before you travel for the best prices to Montreal   - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times  - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!  **Reasons to choose Expedia for your flight to Montreal from Seattle**  Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Montreal with Expedia today. ## Explore a world of travel with Expedia \*Available to Expedia members.