Title: CA $166 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 $166 Cheap Flights from Seattle (SEA) to Montreal (YMQ) [View CA $166 flight on Sun, Apr 26, 2026](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:SEA,to:YUL,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:165.20&airProductToken=AQplCjEI16YBEgQxNTUzGJIBIJgWKLG0iwMwlbWLAzhFQABYAWoFQkFTSUNyCExUUUQwWkJLCjAI16YBEgM1NjAYmBYgmF0o_rWLAzD6t4sDOEVAAVgBagVCQVNJQ3IITFRRRDBaQksSCggBEAEYASoCV1MYASIECAEQASgCKAMoBDAB) - [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:12/11/2025TANYT&leg2=from:ymq,to:sea,departure:19/11/2025TANYT&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:12/11/2025TANYT&leg2=from:ymq,to:sea,departure:19/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![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:12/11/2025TANYT&leg2=from:ymq,to:sea,departure:19/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AC"}}]) - ![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:12/11/2025TANYT&leg2=from:ymq,to:sea,departure:19/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![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:12/11/2025TANYT&leg2=from:ymq,to:sea,departure:19/11/2025TANYT&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 $166 for one-way flights and CA $459 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 22 - Sun, Apr 5 SEA Seattle YUL Montreal CA $459 Roundtrip found 2 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:458.11&airProductToken=AQplCjEI16YBEgQxNTUzGJIBIJgWKJKriAMw9quIAzhFQABYAWoFQkFTSUNyCExUUUQwWkJLCjAI16YBEgM1NTgYmBYgmF0ola-IAzCZsYgDOEVAAVgBagVCQVNJQ3IITFRRRDBaQksKZQowCNemARIDNTYxGJhdIJgWKLTDiQMw18WJAzhFQABYAWoFQkFTSUNyCExUUUQwWkJLCjEI16YBEgQxNTUyGJgWIJIBKK3HiQMwn8iJAzhFQAFYAWoFQkFTSUNyCExUUUQwWkJLEgoIARABGAEqAldTGAEiBAgBEAEoAigDKAQwAQ) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Fri, Nov 14 - Sat, Nov 15 SEA Seattle YUL Montreal CA $495 Roundtrip found 4 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:YUL,departure:14/11/2025TANYT&leg2=from:YUL,to:SEA,departure:15/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:494.72&airProductToken=AQpnCjIIwYYBEgQ4ODExGJIBILiNASjwjf0CMLOO_QI4R0AAWAFqBUJBU0lDcghHTkEyQTJCQQoxCMGGARIDMzE0GLiNASCYXSiVj_0CMMCR_QI4R0ABWAFqBUJBU0lDcghHTkEyQTJCQQpmCjEIwYYBEgM0MTcYmF0gmM4BKLqV_QIwlJb9AjhHQABYAWoFQkFTSUNyCEdOQTJBMkJBCjEIwYYBEgM1NDMYmM4BIJIBKNKX_QIwmJr9AjhHQAFYAWoFQkFTSUNyCEdOQTJBMkJBEgoIARABGAEqAkFDGAEiBAgBEAEoAigDKAQwDQ) ![WestJet](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/WS.gif) Thu, Jan 15 - Sun, Jan 18 SEA Seattle YUL Montreal CA $500 Roundtrip found 18 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:YUL,departure:15/01/2026TANYT&leg2=from:YUL,to:SEA,departure:18/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:499.53&airProductToken=AQplCjEI16YBEgQxNTUzGJIBIJgWKI7FggMw8sWCAzhFQABYAWoFQkFTSUNyCExUUUQwWkJLCjAI16YBEgM1NTgYmBYgmF0okcmCAzCVy4IDOEVAAVgBagVCQVNJQ3IITFRRRDBaQksSCggBEAEYASoCV1MYASIECAEQASgCKAMoBDAB) ![WestJet](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/WS.gif) Fri, Mar 20 - Sat, Apr 4 SEA Seattle YUL Montreal CA $512 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:YUL,departure:20/03/2026TANYT&leg2=from:YUL,to:SEA,departure:04/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:511.75&airProductToken=AQpDCiAI16YBEgQxNTUzGJIBIJgWKI6ViAMw8pWIAzhFQABYAQofCNemARIDNTU4GJgWIJhdKJGZiAMwlZuIAzhFQAFYAQpDCh8I16YBEgM1NjEYmF0gmBYomL-JAzC7wYkDOEVAAFgBCiAI16YBEgQxNTUyGJgWIJIBKOnHiQMw28iJAzhFQAFYARIKCAEQARgBKgJXUxgBIgQIARABKAQwAQ) ![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 5 days 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) Thu, Jan 22 - Wed, Jan 28 SEA Seattle YUL Montreal CA $543 Roundtrip found 21 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:YUL,departure:22/01/2026TANYT&leg2=from:YUL,to:SEA,departure:28/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:542.31&airProductToken=AQplCjEI16YBEgQxNTUzGJIBIJgWKO6TgwMw0pSDAzhFQABYAWoFQkFTSUNyCExUUUQwWkJLCjAI16YBEgM1NTgYmBYgmF0o8ZeDAzD1mYMDOEVAAVgBagVCQVNJQ3IITFRRRDBaQksSCggBEAEYASoCV1MYASIECAEQASgCKAMoBDAB) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Sat, Nov 22 - Sun, Nov 23 SEA Seattle YUL Montreal CA $545 Roundtrip found 3 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:YUL,departure:22/11/2025TANYT&leg2=from:YUL,to:SEA,departure:23/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:544.17&airProductToken=AQpnCjIIwYYBEgQ4ODExGJIBILiNASjw5_0CMLPo_QI4R0AAWAFqBUJBU0lDcghHTkEyQTJCQQoxCMGGARIDMzE0GLiNASCYXSiV6f0CMMDr_QI4R0ABWAFqBUJBU0lDcghHTkEyQTJCQQpmCjEIwYYBEgM0MDkYmF0gmM4BKMrt_QIwpO79AjhHQABYAWoFQkFTSUNyCEdOQTJBMkJBCjEIwYYBEgM1NDMYmM4BIJIBKNLx_QIwmPT9AjhHQAFYAWoFQkFTSUNyCEdOQTJBMkJBEgoIARABGAEqAkFDGAEiBAgBEAEoAigDKAQwDQ) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Fri, Nov 14 - Sat, Nov 15 SEA Seattle YUL Montreal CA $571 Roundtrip found 4 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:YUL,departure:14/11/2025TANYT&leg2=from:YUL,to:SEA,departure:15/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:570.48&airProductToken=AQqnAQo2CMSYARIEMzgxOBiSASDvuAEoh4n9AjDPif0COEVAAFgBaglNQUlOQkFTSUNyCFZGVlNBMEJDCjYIxJgBEgQyMTY3GO-4ASDMfCiBi_0CMMuM_QI4RUABWAFqCU1BSU5CQVNJQ3IIVkFVU0EwQlEKNQjEmAESBDU0ODkYzHwgmF0o-Iz9AjCajv0COEVAAVgBaglNQUlOQkFTSUNyCFZBVVNBMEJRCqcBCjUIxJgBEgQ1NDI3GJhdIMx8KNqR_QIwnZP9AjhFQABYAWoJTUFJTkJBU0lDcghWQVVTQTBCQwo2CMSYARIEMjE2NxjMfCDvuAEo_5P9AjDglf0COEVAAVgBaglNQUlOQkFTSUNyCFZBVVNBMEJDCjYIxJgBEgQzODAyGO-4ASCSASi_lv0CMIeX_QI4RUABWAFqCU1BSU5CQVNJQ3IIVkZWU0EwQkMSCggBEAEYASoCREwYASIECAEQASgCKAMoBDAB) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Wed, Nov 19 - Fri, Nov 21 SEA Seattle YUL Montreal CA $610 Roundtrip found 6 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:YUL,departure:19/11/2025TANYT&leg2=from:YUL,to:SEA,departure:21/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:609.05&airProductToken=AQqbAQoyCMGCARIEMjA3MxiSASDvuQEo38P9AjCKxf0COEJAAFgBagVCQVNJQ3IIT1ZBS1pTQlgKMgjBggESBDMyMzkY77kBIO9ZKJfH_QIwm8n9AjhCQAFYAWoFQkFTSUNyCFFVQUhZU0JWCjEIwYIBEgQ2MDExGO9ZIJhdKMTL_QIwq8z9AjhCQAFYAWoFQkFTSUNyCFFVQUhZU0JWEgoIARABGAEqAkFBGAEiBAgBEAEoAigDKAQwCw) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Thu, Jan 15 - Sun, Jan 18 SEA Seattle YUL Montreal CA $630 Roundtrip found 18 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:YUL,departure:15/01/2026TANYT&leg2=from:YUL,to:SEA,departure:18/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:629.59&airProductToken=AQqWAQovCMGmARIEMjIyMxiSASC4jQEoq8WCAzDtxYIDOE9AAFgBagJNQXIIT0gyT0FWTU4KMQjXpgESAzEyNhi4jQEgmBYooceCAzD8x4IDOExAAVgBagVFQ09OT3IITENWRDBMRUsKMAjXpgESAzU1OBiYFiCYXSiRyYIDMJXLggM4TEABWAFqBUVDT05PcghMQ1ZEMExFSxIKCAEQARgBKgJXUxgBIgQIARABKAIoAygEMAE) ## 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:12/11/2025TANYT&leg2=from:YUL,to:SEA,departure:15/11/2025TANYT&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 $694](https://www.expedia.ca/Flights-Search?leg1=from:SEA,to:YUL,departure:12/11/2025TANYT&leg2=from:YUL,to:SEA,departure:15/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) ## Travel information | Origin airport | Seattle - Tacoma Intl. | | --- | --- | | Destination airport | Pierre Elliott Trudeau Intl. | | Roundtrip price | CA $458 | | Distance | 3643 km | ## Book with confidence ### 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 $459 rising to CA $630.   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. \*Available to Expedia members.