C$212 Cheap Flights from Montreal to Seattle

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Flight deals from Montreal to Seattle

Looking for a cheap last-minute deal or the best return flight from Montreal to Seattle? If you want to travel next month, return fares start from C$416. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Montreal to Seattle

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Montreal to Seattle flights are currently cheapest in April.

Montreal to Seattle: Flight information

The things to know before you go.
Cheapest flight foundC$212
Cheapest month to flyApril

Finding cheap flights from Montreal to Seattle: Frequently asked questions

There are 4 airports in Seattle: Seattle Lake Union SPB, Seattle Boeing Fld, Seattle / Tacoma International, and Paine Field.
The best price we found for a return flight from Montreal to Seattle is C$383. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Montreal to Seattle. But we found flights with one or more stops from C$383.
As of March 2026, there are no flights flying from Montreal to Seattle.
The cheapest month to fly from Montreal to Seattle is usually April.
If you're flying from Montreal, the cheapest airport near Seattle is Seattle / Tacoma International – which is 19.5 km away from the centre of Seattle. We've found flights into this airport from C$383.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Montreal to Seattle on Saturday, April 25, 2026.
No airlines currently offer direct flights between Montreal and Seattle. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seattle but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Seattle is around 40 days in advance, so don’t leave your flight to the last minute.
In March, the average temperature is usually around 6°C. August is typically the warmest month in Seattle, when it usually averages around 23°C. You can expect the least rain in July. The coldest month is December, with temperatures averaging 0°C. The rainiest month is November.
The cheapest airline that flies to Seattle is WestJet .

Flying from Montreal to Seattle: what you need to know

  • Planning your vacation starts with figuring out where you'll leave from in Montreal. Montreal-Pierre Elliott Trudeau International Airport (YUL) is the city's main base, so check out your options for booking a flight from Montreal to Seattle taking off from here.

  • Seattle-Tacoma International Airport (SEA) and Lake Union Sea Plane Base (LKE) are Seattle's primary gateways.

  • The average duration of a direct flight from Montreal to Seattle is 5 hours 52 minutes. Seattle's timezone is UTC-7, making Seattle 3 hours behind Montreal.

  • Montreal-Pierre Elliott Trudeau International Airport (YUL) to Seattle-Tacoma International Airport (SEA) is the most traveled route that connects these two cities. There are 8 departures a week to choose from. If you prefer starting your day later, the last flight from Montreal to Seattle is with Air Canada at 18:30. Choose the first YUL to SEA departure with Air Canada at 18:15 if you're more of an early bird.

  • To ensure you catch your flight from Montreal to Seattle, allow plenty of time to check in and find your gate. Arriving two hours before international departures and an hour before domestic flights is the general rule.

  • Travelling during a peak period like school or public holidays? Expect longer lines at check-in and security. For peace of mind, arrive up to four hours before international flights and two hours before domestic departures.

  • You won't need a visa for United States if you have a passport from Canada and are travelling for tourism purposes. Travel documentation and visa requirements are subject to changes. So before organizing your cheap flights from Montreal to Seattle, be sure to check with your airline and your destination country's local consulate or embassy for the latest rules.

Flying from Montreal

Montreal-Pierre Elliott Trudeau International Airport (YUL)

  • Set off from Montreal-Pierre Elliott Trudeau International Airport (YUL) on a nonstop flight from Montreal to Seattle. From YUL, you can fly directly into Seattle-Tacoma International Airport (SEA).

  • Air Canada is a well-known airline that operates direct flights from Montreal to Seattle departing from YUL.

  • Located around 26 kilometres from central Montreal, YUL can be reached in about 25 minutes by car, depending on traffic. The journey on public transport will take roughly 2 hours and 15 minutes.

  • After a leisurely start to your vacation? Stay near Montreal-Pierre Elliott Trudeau International Airport. Whether you have an early flight from Montreal to Seattle or just don't want to be rushed, these hotels are just the thing:

Arriving in Seattle

Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport (SEA) to central Seattle is about 18 minutes by car. It's approximately 23 kilometres away.

  • If you're travelling by public transport, expect a journey of about 54 minutes.

  • The last thing you need is a lengthy journey to your hotel if you're landing late on a flight from Montreal to Seattle. Stay at one of these accommodation options near SEA instead:

Lake Union Sea Plane Base Airport (LKE)

How to find the cheapest flights from Montreal to Seattle

  • The lowest price we've seen for a one-way ticket from Montreal to Seattle is C$212. For a return flight on this route, the best price is C$383. Depending on when and how early you book, these fares could change.

  • Score cheap flights from Montreal to Seattle by booking at least 10 months ahead. According to our research, that's the sweet spot for finding a bargain.

  • Organize your trip for June. That's the cheapest month for tickets from Montreal to Seattle. If you're flexible with your travel dates, use the 'Whole month' tool to find the cheapest price across each month.

  • Log into your online account or use the app to set up a Price Alert. We'll let you know right away if there's a better deal on this route. It's simple to do, and it'll save you from looking for cheap flights from Montreal to Seattle every day.

  • Use filters to tailor your flights from Montreal to Seattle. Select your preferred arrival and departure times, number of stops and airlines. Alternatively, sort your results by 'Cheapest' to get the best deals.

Best time to go to Seattle

  • It's time to choose your dates for your flight from Montreal to Seattle. July is the busiest month to visit Seattle. If you want a quieter atmosphere, go in May.

  • Schedule your flight from Montreal to Seattle for August if you'd like to visit the city during its warmest month. Expect temperatures in Seattle to range from 12ºC to 28ºC.

  • If you want to travel in cooler conditions, book a cheap ticket from Montreal to Seattle in February when temperatures average between -1ºC and 11ºC.

More about Seattle

Complete your Seattle trip with a car rental

  • Finding you a cheap flight from Montreal to Seattle isn't our only cool trick. Check out our car rentals in Seattle and travel at your own pace. We find deals from trusted car rental providers and put them all in one place. You can instantly compare rates and then book with no fees.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.