Cheap Flights from Montreal to Seattle / Tacoma International

Compare Montreal to Seattle / Tacoma International flight deals

Find the cheapest month or even day of the year to fly to Seattle / Tacoma International

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Flight deals from Montreal to Seattle / Tacoma International

Looking for a cheap last-minute deal or the best return flight from Montreal to Seattle / Tacoma International? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Montreal to Seattle / Tacoma International

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

Direct flights from Montreal to Seattle / Tacoma International

Montreal to Seattle / Tacoma International: Alternative routes

Compare routes from Montreal to Seattle below. You may find an airport to fly into that's cheaper, faster, or easier than Seattle / Tacoma International.

Montreal to Seattle: Flight information

The things to know before you go.
Cheapest flight foundRs49,640
Cheapest month to flySeptember
Average flight time5 hrs, 54 mins
Most popular airlineAir Canada
Average flights per week30

Finding cheap flights from Montreal to Seattle / Tacoma International: Frequently asked questions

The best price we found for a return flight from Montreal to Seattle / Tacoma International is Rs88,354. 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.
5 hours and 54 minutes is the average flight time from Montreal to Seattle / Tacoma International.
Air Canada and United fly direct from Montreal to Seattle / Tacoma International.
As of August 2025, there are 15 flights per week flying from Montreal to Seattle / Tacoma International.
The cheapest month to fly from Montreal to Seattle / Tacoma International is usually September.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Montreal to Seattle / Tacoma International Airport on Tuesday, 9 September 2025.
Yes – the average flight time is 5 hours and 54 minutes.
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 / Tacoma International 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.

Flying from Montreal to Seattle-Tacoma International Airport (SEA): What you need to know

  • Planning your holiday starts with working out where you'll fly out of in Montreal. Montreal-Pierre Elliott Trudeau International Airport (YUL) is the city's main airport, so explore your options for reserving a flight from Montreal to Seattle-Tacoma International Airport (SEA) jetting off from here.

  • Expect to be in the air for 5 hours 50 minutes. On average, that's the time it takes for a direct Montreal to Seattle-Tacoma International Airport flight.

  • The timezone in Seattle is UTC-7, which is three hours behind Montreal. Seattle-Tacoma International Airport is located in Seattle.

  • The busiest route is from Montreal-Pierre Elliott Trudeau International Airport (YUL) to Seattle-Tacoma International Airport (SEA). You can choose from 3 direct services every week. Air Canada operates a 4:45pm departure between YUL and SEA.

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

  • Taking off during a peak period like a bank holiday? Expect longer queues at security and check-in. For peace of mind, arrive up to four hours before international flights and two hours ahead of domestic departures.

Airports in Montreal

Montreal-Pierre Elliott Trudeau International Airport (YUL)

  • Montreal-Pierre Elliott Trudeau International Airport (YUL) makes it easy to travel directly to your destination. Nonstop flights from Montreal to Seattle-Tacoma International Airport (SEA) leave from this terminal.

  • You can travel on a direct flight from Montreal to Seattle-Tacoma International Airport with Air Canada. This top carrier offers services from YUL.

  • Air Canada sees the most traveller bookings for flights from YUL to SEA.

  • The journey from central Montreal to YUL takes around 45 minutes by public transport. If you ride-share, drive or get a cab, you'll cover the 26 kilometres in 25 minutes or so, depending on traffic conditions.

  • Catching an early flight from Montreal to Seattle-Tacoma International Airport? Avoid the stress of rushing to the terminal (and get some extra shut-eye) by picking one of these stays close to Montreal-Pierre Elliott Trudeau International Airport:

  • 64.89% of flights that leave from Montreal-Pierre Elliott Trudeau International Airport make it to their destination on schedule.

  • YUL's address is 975 Romeo Vachon Street North.

St. Hubert Airport (YHU)

About Seattle-Tacoma International Airport (SEA)

Getting from Seattle-Tacoma International Airport (SEA) to central Seattle

  • Central Seattle is around 18 kilometres from Seattle-Tacoma International Airport. Travel times by car hire or cab will vary based on traffic conditions, so do a little research before your trip.

  • Travelling on public transport typically takes 55 minutes.

How to find the cheapest flights from Montreal to Seattle-Tacoma International Airport (SEA)

  • Rs49,640 is currently the lowest price for a one-way ticket from Montreal to Seattle-Tacoma International Airport. A return flight starts from Rs88,354. These fares may change based on availability and demand.

  • Book one month before flying. Pricing trends suggest that this is the ideal window for finding cheap flights from Montreal to SEA.

  • Plan your trip for June. That's the best month for scoring cheap Montreal to Seattle-Tacoma International Airport tickets. If you have flexibility with your dates, use the 'Whole month' tool to find the lowest price across every month.

  • Finding a cheap flight ticket from Montreal to SEA couldn't be easier with Price Alerts. All you need to do is create one of these automatic alerts and we'll let you know when there's a better deal.

  • Filters make it easier to scoop up a deal on your flight from Montreal to Seattle-Tacoma International Airport. Choose the airlines, flight times and stops that work for you. Then sort the results by 'Cheapest' to find the best price quickly.

The best time to fly from Montreal to Seattle-Tacoma International Airport (SEA)

  • May is the quietest month for flights from Montreal to Seattle-Tacoma International Airport (SEA), while July is the busiest. Figure out the best time to go to Seattle based on whether you want a lively atmosphere or a more laid-back vibe.

  • Lock in a Montreal to SEA flight ticket departing in August if you're eager to visit the city during its warmest month. You can expect temperatures in Seattle to range from 12ºC to 28ºC.

  • Look for cheap tickets from Montreal to Seattle-Tacoma International Airport in February if you like travelling in cooler conditions. Temperatures are at their lowest then, ranging between -1ºC and 11ºC.

More about Seattle

  • When it comes to searching for somewhere to rest your head, you'll find the best places to stay in Seattle right here. Browse these options once you've locked in your flight from Montreal to Seattle-Tacoma International Airport:

  • Your Seattle trip wouldn't be complete without a bit of sightseeing. Major attractions you won't want to miss include Pike Place Market, Space Needle and Seattle Skyline.

Explore more of the United States

  • You've seen Seattle, now it's time to explore other parts of the United States. Travel about 209 kilometres south to Portland to tick off its top sights. From Portland Japanese Garden to Voodoo Doughnut and Great Northwest, there's plenty to keep you busy.

  • Vancouver is another well-known destination in the United States and is around 209 kilometres south of Seattle. No journey is complete without visiting Vancouver Waterfront, Reconstructed HBC Fort Vancouver and Fort Vancouver National Historic Site Garden.

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