Cheap Flights from Montreal to Seattle

Compare Montreal to Seattle flight deals

Find the cheapest month or even day of the year to fly 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 ر.ق.‏ 1,234. 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 foundر.ق.‏ 708
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 ر.ق.‏ 1,016. 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 ر.ق.‏ 1,016.
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 ر.ق.‏ 1,016.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Montreal to Seattle on Saturday, 25 April 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 .

Travelling from Montreal to Seattle: what you need to know

  • Montreal's main base, Montreal-Pierre Elliott Trudeau International Airport (YUL), is where plenty of awesome adventures begin. Explore the departure options from here when planning your flight from Montreal to Seattle.

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

  • The average length of a direct Montreal to Seattle flight is 5 hours 50 minutes.

  • Seattle's timezone is UTC-7, which makes Seattle three hours behind Montreal.

  • With three flights a week between the two airports, Montreal-Pierre Elliott Trudeau International Airport (YUL) to Seattle-Tacoma International Airport (SEA) is the most popular route. Board the first flight from Montreal to Seattle with Air Canada at 16:45. If you prefer to get more out of your day before jetting off, the last departure from YUL to SEA is with Air Canada at 17:45.

  • For a stress-free start to your trip, turn up at the airport two hours ahead of international flights and one hour before domestic departures. That way, you won't have to rush to catch your Montreal to Seattle flight.

  • Flying during a peak time like August? Public holidays and other high seasons can lead to longer lines and delays at check-in and security. Be extra cautious and arrive up to four hours ahead of international flights and two hours before domestic departures.

How to find the cheapest flights from Montreal to Seattle

  • ر.ق.‏ 712 is the lowest price for a one-way ticket from Montreal to Seattle. A return flight starts from ر.ق.‏ 1,022. These prices may change depending on availability and demand.

  • To snag cheap Montreal to Seattle flights, book your journey three months before your planned departure.

  • June is the best month for picking up an awesome deal on a plane ticket from Montreal to Seattle. If you're looking to travel at a different time of year, the 'Whole month' tool will show you the lowest prices for each month.

  • There's no need to check every day to find out if prices have dropped when you set up a Price Alert. We'll tell you when there's a better deal on cheap flights from Montreal to Seattle.

  • Choose your preferred departure and arrival times, airlines and number of stops with the filters. Or sort your Montreal to Seattle flight results by 'Fastest,' 'Cheapest' or 'Best.'

Flying from Montreal

Montreal-Pierre Elliott Trudeau International Airport (YUL)

  • You can get a direct flight from Montreal to Seattle leaving from Montreal-Pierre Elliott Trudeau International Airport (YUL). Begin your trip at YUL and come in for landing at Seattle-Tacoma International Airport (SEA).

  • Air Canada is a well-known airline that offers direct Montreal to Seattle plane tickets from YUL.

  • YUL is around 16 kilometres from central Montreal. If you're driving, catching a cab or ride-sharing from the centre, it'll take you 25 minutes or so to get there, depending on traffic. If you're using public transport, expect the travel time to be around 45 minutes.

  • Looking for a handy hotel close to Montreal-Pierre Elliott Trudeau International Airport? If you're boarding an early flight from Montreal to Seattle, these stays will put you moments from your check-in counter:

  • Of all flights leaving Montreal-Pierre Elliott Trudeau International Airport, 64.89% land on time at their destination.

  • You'll find YUL at 975 Romeo Vachon Street North.

Arriving in Seattle

Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport (SEA) is approximately 19 kilometres from central Seattle. If you're catching a cab or a ride-share, the drive takes around 20 minutes.

  • When travelling on public transport, expect a journey time of roughly 55 minutes.

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

  • Go where the road takes you with a Seattle-Tacoma International Airport rental car. Pick up a set of wheels from Thrifty, Europcar or Budget and see more of Seattle and beyond.

  • Secure the lowest price by booking your vehicle from Seattle-Tacoma International Airport around one week before your departure date.

Lake Union Sea Plane Base Airport (LKE)

  • The centre of Seattle is around 3 kilometres from Lake Union Sea Plane Base Airport (LKE). Once your flight from Montreal to Seattle has touched down and you've made your way out of the airport, expect a drive of around 10 minutes.

  • Travelling by public transport will take about 25 minutes.

  • Hang up the 'Do not disturb' sign and rest at a hotel near LKE. Here are a few options where you can check in after your flight from Montreal to Seattle:

Best time to go to Seattle

  • May is the quietest month for flights from Montreal to Seattle, while July is the busiest. Figure out the best time to visit Seattle based on whether you prefer a laid-back vibe or a lively atmosphere.

  • The warmest month in Seattle is August, with temperatures ranging between 12ºC and 28ºC. Lock in your Montreal to Seattle ticket then if that's your idea of comfortable weather.

  • If you'd rather travel in cooler conditions, search for a cheap flight from Montreal to Seattle in February when temperatures average between -1ºC and 11ºC.

More about Seattle

  • Start your Seattle trip right by choosing the perfect place to stay. As soon as you've booked your flight from Montreal to Seattle, explore our range of hotels including:

  • There are so many things to discover in this city it can be hard to figure out where to start. Greyhound: Bus Station, LMN Architects and Boeing Radiation Effects Lab are popular attractions which should be on every Seattle itinerary.

Explore more of United States

  • You've done Seattle, now it's time to discover other parts of United States. Travel around 241 kilometres south to Portland to tick off its leading sights. From Pioneer Courthouse Square to Portland Japanese Garden and Pittock Mansion, you'll have a full itinerary ahead.

  • If you're looking to explore another well-known destination in United States, head for Spokane, about 370 kilometres east of Seattle. Manito Park, Northwest Museum of Arts & Culture and Spokane Falls are among the biggest draws.

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