Title: CA $152 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://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # CA $152 Cheap Flights from Seattle (SEA) to Montreal (YMQ) [View CA $152 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:151.08&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:24/10/2025TANYT&leg2=from:ymq,to:sea,departure:31/10/2025TANYT&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:24/10/2025TANYT&leg2=from:ymq,to:sea,departure:31/10/2025TANYT&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:24/10/2025TANYT&leg2=from:ymq,to:sea,departure:31/10/2025TANYT&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:24/10/2025TANYT&leg2=from:ymq,to:sea,departure:31/10/2025TANYT&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:24/10/2025TANYT&leg2=from:ymq,to:sea,departure:31/10/2025TANYT&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 $152 for one-way flights and CA $461 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) Mon, Oct 20 - Sat, Oct 25 SEA Seattle YUL Montreal CA $461 Roundtrip found 6 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:YUL,departure:20/10/2025TANYT&leg2=from:YUL,to:SEA,departure:25/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:460.56&airProductToken=AQplCjEI16YBEgQxNTUzGJIBIJgWKLHx-gIwlvL6AjhFQABYAWoFQkFTSUNyCExUUUQwWkJXCjAI16YBEgMyMTQYmBYgmF0o_vL6AjD59PoCOEVAAVgBagVCQVNJQ3IITFRRRDBaQlcSCggBEAEYASoCV1MYASIECAEQASgCKAMoBDAB) ![WestJet](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/WS.gif) Mon, Mar 9 - Mon, Mar 23 SEA Seattle YUL Montreal CA $483 Roundtrip found 4 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:YUL,departure:09/03/2026TANYT&leg2=from:YUL,to:SEA,departure:23/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:482.75&airProductToken=AQpDCiAI16YBEgQxNTUzGJIBIJgWKK6ZhwMwkpqHAzhFQABYAQofCNemARIDNTU4GJgWIJhdKLGdhwMwtZ-HAzhFQAFYAQpDCh8I16YBEgM1NTkYmF0gmBYovreIAzDhuYgDOEVAAFgBCiAI16YBEgQxNTUyGJgWIJIBKOnAiAMw28GIAzhFQAFYARIKCAEQARgBKgJXUxgBIgQIARABKAQwAQ) ![WestJet](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/WS.gif) Mon, Oct 20 - Sat, Oct 25 SEA Seattle YUL Montreal CA $498 Roundtrip found 6 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:YUL,departure:20/10/2025TANYT&leg2=from:YUL,to:SEA,departure:25/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:497.66&airProductToken=AQplCjEI16YBEgQxNTUzGJIBIJgWKLHx-gIwlvL6AjhFQABYAWoFQkFTSUNyCExUUUQwWkJXCjAI16YBEgMyMTQYmBYgmF0o_vL6AjD59PoCOEVAAVgBagVCQVNJQ3IITFRRRDBaQlcSCggBEAEYASoCV1MYASIECAEQASgCKAMoBDAB) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Mon, Oct 20 - Sat, Oct 25 SEA Seattle YUL Montreal CA $508 Roundtrip found 6 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:YUL,departure:20/10/2025TANYT&leg2=from:YUL,to:SEA,departure:25/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:507.02&airProductToken=AQptCjQIxJgBEgM1NjcYkgEg4Fwoh_X6AjCk9_oCOEVAAFgBaglNQUlOQkFTSUNyCFZBVVNBMEJRCjUIxJgBEgQyNTk3GOBcIJhdKOz4-gIwg_r6AjhFQAFYAWoJTUFJTkJBU0lDcghWQVVTQTBCURIKCAEQARgBKgJETBgBIgQIARABKAIoAygEMAE) ![WestJet](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/WS.gif) Fri, Oct 17 - Fri, Oct 24 SEA Seattle YUL Montreal CA $513 Roundtrip found 6 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:YUL,departure:17/10/2025TANYT&leg2=from:YUL,to:SEA,departure:24/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:512.31&airProductToken=AQqZAQoxCNemARIEMzYxMRiSASCYFiiMzfoCMPrN-gI4RUAAWAFqBUJBU0lDcghMVFFEMFpCVwoxCNemARIDNjY0GJgWIJjOASjUzvoCMLzQ-gI4RUABWAFqBUJBU0lDcghMVFFEMFpCVwoxCNemARIDNTk4GJjOASCYXSi50voCMIvT-gI4RUABWAFqBUJBU0lDcghMVFFEMFpCVxIKCAEQARgBKgJXUxgBIgQIARABKAIoAygEMAE) ![WestJet](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/WS.gif) Mon, Oct 20 - Sat, Nov 1 SEA Seattle YUL Montreal CA $518 Roundtrip found 3 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:YUL,departure:20/10/2025TANYT&leg2=from:YUL,to:SEA,departure:01/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:517.62&airProductToken=AQplCjEI16YBEgQxNTUzGJIBIJgWKLHx-gIwlvL6AjhFQABYAWoFQkFTSUNyCExUUUQwWkJXCjAI16YBEgMyMTQYmBYgmF0o_vL6AjD59PoCOEVAAVgBagVCQVNJQ3IITFRRRDBaQlcSCggBEAEYASoCV1MYASIECAEQASgCKAMoBDAB) ![WestJet](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/WS.gif) Mon, Oct 20 - Sat, Oct 25 SEA Seattle YUL Montreal CA $519 Roundtrip found 6 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:YUL,departure:20/10/2025TANYT&leg2=from:YUL,to:SEA,departure:25/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:518.86&airProductToken=AQplCjEI16YBEgQxNTUzGJIBIJgWKLHx-gIwlvL6AjhFQABYAWoFQkFTSUNyCExUUUQwWkJXCjAI16YBEgMyMTQYmBYgmF0o_vL6AjD59PoCOEVAAVgBagVCQVNJQ3IITFRRRDBaQlcSCggBEAEYASoCV1MYASIECAEQASgCKAMoBDAB) ![WestJet](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/WS.gif) Mon, Oct 20 - Sat, Oct 25 SEA Seattle YUL Montreal CA $521 Roundtrip found 6 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:YUL,departure:20/10/2025TANYT&leg2=from:YUL,to:SEA,departure:25/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:520.15&airProductToken=AQplCjEI16YBEgQxNTUzGJIBIJgWKLHx-gIwlvL6AjhMQABYAWoFRUNPTk9yCExUUUQwWkVXCjAI16YBEgMyMTQYmBYgmF0o_vL6AjD59PoCOExAAVgBagVFQ09OT3IITFRRRDBaRVcSCggBEAEYASoCV1MYASIECAEQASgCKAMoBDAB) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Fri, Dec 12 - Sat, Dec 13 SEA Seattle YUL Montreal CA $589 Roundtrip found 3 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:YUL,departure:12/12/2025TANYT&leg2=from:YUL,to:SEA,departure:13/12/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:588.40&airProductToken=AQpFCiAI1YIBEgMzNDEYkgEgxI0BKNbK_wIwi83_AjhOQABYAQohCNWCARIEMzYyMRjEjQEgmF0o-M7_AjDUz_8COE5AAVgBCkQKIAjVggESBDM1NDkYmF0grhwomdH_AjDN0v8COE5AAFgBCiAI1YIBEgQyMjExGK4cIJIBKInT_wIwpNX_AjhOQAFYARIKCAEQARgBKgJVQRgBIgQIARABKAQwAQ) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Wed, Oct 29 - Sat, Nov 22 SEA Seattle YUL Montreal CA $644 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:YUL,departure:29/10/2025TANYT&leg2=from:YUL,to:SEA,departure:22/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:643.48&airProductToken=AQpnCjIIwYYBEgQ4ODAzGJIBILiNASjh1PsCMKLV-wI4R0AAWAFqBUJBU0lDcghHTkEyQTJCQQoxCMGGARIDMzA4GLiNASCYXSif1vsCMLzY-wI4R0ABWAFqBUJBU0lDcghHTkEyQTJCQQpnCjEIwYYBEgMzMDMYmF0guI0BKKjh_QIwgOT9AjhHQABYAWoFQkFTSUNyCEdOQTJBMkJBCjIIwYYBEgQ4ODA0GLiNASCSASjq5P0CMKfl_QI4R0ABWAFqBUJBU0lDcghHTkEyQTJCQRIKCAEQARgBKgJBQxgBIgQIARABKAIoAygEMA0) ## 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:24/10/2025TANYT&leg2=from:YUL,to:SEA,departure:02/11/2025TANYT&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 $748](https://www.expedia.ca/Flights-Search?leg1=from:SEA,to:YUL,departure:24/10/2025TANYT&leg2=from:YUL,to:SEA,departure:02/11/2025TANYT&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 $461 | | 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 $461 rising to CA $644.   Here are more money-saving tips:  - Fly in October 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.