Skyscanner

Cheap Flights from Seattle (SEAA) to Montreal (YMQA)

Compare Seattle to Montreal flight deals

Find the cheapest month or even day of the year to fly to Montreal

Book the best Montreal fare with no extra fees

Flight deals from Seattle to Montreal

Looking for a cheap last-minute deal or the best return flight from Seattle to Montreal? Find the lowest prices on one-way and return tickets right here.
Montreal.$671 per passenger.Departing Mon, 18 Aug, returning Mon, 25 Aug.Return flight with WestJet and Air Transat.Outbound indirect flight with WestJet, departs from Seattle / Tacoma International on Mon, 18 Aug, arriving in Montreal Pierre Elliott Trudeau.Inbound indirect flight with Air Transat, departs from Montreal Pierre Elliott Trudeau on Mon, 25 Aug, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $671, select.
Montreal.$675 per passenger.Departing Tue, 2 Sep, returning Wed, 17 Sep.Return flight with Hawaiian Airlines and Porter Airlines.Outbound indirect flight with Hawaiian Airlines, departs from Seattle / Tacoma International on Tue, 2 Sep, arriving in Montreal Pierre Elliott Trudeau.Inbound indirect flight with Porter Airlines, departs from Montreal Pierre Elliott Trudeau on Wed, 17 Sep, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $675, select.
Montreal.$692 per passenger.Departing Mon, 21 Jul, returning Thu, 24 Jul.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Seattle / Tacoma International on Mon, 21 Jul, arriving in Montreal Pierre Elliott Trudeau.Inbound indirect flight with WestJet, departs from Montreal Pierre Elliott Trudeau on Thu, 24 Jul, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $692, select.
Montreal.$753 per passenger.Departing Tue, 30 Sep, returning Tue, 7 Oct.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Seattle / Tacoma International on Tue, 30 Sep, arriving in Montreal Pierre Elliott Trudeau.Inbound indirect flight with WestJet, departs from Montreal Pierre Elliott Trudeau on Tue, 7 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $753, select.
Montreal.$754 per passenger.Departing Sat, 11 Oct, returning Sat, 18 Oct.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Seattle / Tacoma International on Sat, 11 Oct, arriving in Montreal Pierre Elliott Trudeau.Inbound indirect flight with WestJet, departs from Montreal Pierre Elliott Trudeau on Sat, 18 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $754, select.
Montreal.$819 per passenger.Departing Mon, 25 Aug, returning Tue, 9 Sep.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Seattle / Tacoma International on Mon, 25 Aug, arriving in Montreal Pierre Elliott Trudeau.Inbound indirect flight with WestJet, departs from Montreal Pierre Elliott Trudeau on Tue, 9 Sep, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $819, select.
Montreal.$860 per passenger.Departing Tue, 15 Jul, returning Sat, 19 Jul.Return flight with Air Canada.Outbound direct flight with Air Canada departs from Seattle / Tacoma International on Tue, 15 Jul, arriving in Montreal Pierre Elliott Trudeau.Inbound direct flight with Air Canada departs from Montreal Pierre Elliott Trudeau on Sat, 19 Jul, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $860, select.
Montreal.$860 per passenger.Departing Fri, 1 Aug, returning Sun, 3 Aug.Return flight with Air Canada.Outbound direct flight with Air Canada departs from Seattle / Tacoma International on Fri, 1 Aug, arriving in Montreal Pierre Elliott Trudeau.Inbound direct flight with Air Canada departs from Montreal Pierre Elliott Trudeau on Sun, 3 Aug, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $860, select.

Find the cheapest month to fly from Seattle to Montreal

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle to Montreal flights are currently cheapest in August.
Jun
Find prices
Jul
from $692
Aug
from $671
Sep
from $674
Oct
from $753
Nov
Find prices
Dec
from $1,203
Jan
Find prices
Feb
Find prices
Mar
Find prices
Apr
Find prices
May
Find prices

Direct flights from Seattle to Montreal

Alternative Seattle to Montreal routes

Looking for the cheapest, fastest or easiest route from Seattle to Montreal? You could fly into the following airports instead.

Seattle to Montreal: Flight information

The things to know before you go.
Cheapest flight found$671
Cheapest month to flyAugust
Average flight time5 hrs, 11 mins
Most popular airlineAir Canada
Average flights per week15

Finding cheap flights from Seattle to Montreal: Frequently asked questions

There are 3 airports in Montreal: Montreal St Hubert, Montreal Pierre Elliott Trudeau and Montreal Mirabel.
The best price we found for a return flight from Seattle to Montreal is $671. 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 11 minutes is the average flight time from Seattle to Montreal.
Air Canada and United fly direct from Seattle to Montreal.
As of June 2025, there are 15 flights per week flying from Seattle to Montreal.
The cheapest month to fly from Seattle to Montreal is usually August.
If you're flying from Seattle, the cheapest airport near Montreal is Montreal Pierre Elliott Trudeau – which is 16.1 km away from the centre of Montreal. We've found flights into this airport from $671.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Montreal on Monday, 18 August 2025.
Yes – the average flight time is 5 hours and 11 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 Montreal 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 Montreal is around 40 days in advance, so don’t leave your flight to the last minute.
In June, the average temperature is usually around 18°C. July is typically the warmest month in Montreal, when it usually averages around 25°C. You can expect the least rain in February. The coldest month is January, with temperatures averaging -17°C. The rainiest month is June.
The cheapest airline that flies to Montreal is WestJet. And the cheapest airline that flies to Montreal Pierre Elliott Trudeau Airport is Air Canada.

Travelling from Seattle to Montreal: what you need to know

  • Seattle has two main airports where you can set off on your adventure. Check out your options for booking a flight from Seattle to Montreal leaving from Seattle-Tacoma International Airport (SEA) or Lake Union Sea Plane Base Airport (LKE).

  • Montreal-Pierre Elliott Trudeau International Airport (YUL) is where your flight will arrive in Montreal.

  • Around 5 hours 10 minutes is how long you can expect to be in the air on a direct Seattle to Montreal flight.

  • Montreal is three hours ahead of Seattle and is in the UTC-4 timezone.

  • With three flights a week between the two airports, Seattle-Tacoma International Airport (SEA) to Montreal-Pierre Elliott Trudeau International Airport (YUL) is the busiest route. Hop on the first flight from Seattle to Montreal with Air Canada at 07:40. If you prefer to get more out of your day before jetting off, the last departure from SEA to YUL is with Air Canada at 09:45.

  • To ensure you catch your Seattle to Montreal flight, allow plenty of time to navigate the airport and find your gate. Turning up two hours ahead of international departures and an hour before domestic flights is the standard rule.

  • Flying during a peak time like July? High seasons (like spring break, Christmas and Thanksgiving) can easily add an hour at security. Be extra safe and arrive up to four hours ahead of international flights and two hours before a domestic departure.

How to find the cheapest flights from Seattle to Montreal

  • Book two months before flying. Pricing trends suggest that this is the ideal window for finding cheap Seattle to Montreal flights.

  • Organise your trip for May. That's the best month for landing an awesome deal on plane tickets from Seattle to Montreal. If your travel dates are flexible, use the 'Whole month' tool to find the cheapest price across every month.

  • You don't need to check back in every day to find out if fares have dropped when you set up a Price Alert. We'll update you as soon as there's a better deal on cheap flights from Seattle to Montreal.

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

Flying from Seattle

Seattle-Tacoma International Airport (SEA)

  • If you're searching for a direct flight from Seattle to Montreal, you can depart from Seattle-Tacoma International Airport (SEA). Fly from SEA to Montreal-Pierre Elliott Trudeau International Airport (YUL) in one seamless trip.

  • Reserve your Seattle to Montreal plane tickets with Air Canada. This carrier is a top choice for direct flights from SEA.

  • Consider adding a stopover to potentially find a cheaper Seattle to Montreal flight. Just uncheck 'Direct flights only' when searching for departures from Seattle-Tacoma International Airport. Take a break from travelling at one of these airports:

    • Vancouver International Airport (YVR)

    • Calgary International Airport (YYC)

    • Minneapolis-St. Paul International Airport (MSP)

  • Located around 18 kilometres from the centre of Seattle, SEA can be reached in about 20 minutes by car, depending on traffic. The journey by public transport will take roughly 55 minutes.

  • Want a convenient hotel close to Seattle-Tacoma International Airport? If you're boarding an early flight from Seattle to Montreal, these accommodation options will have you nice and close to your departure gate:

  • 81.27% of flights leaving Seattle-Tacoma International Airport arrive at their destination on time. With its strong on-time stats, disruptions are unlikely when jetting out of SEA.

Arriving in Montreal

Montreal-Pierre Elliott Trudeau International Airport (YUL)

  • The distance from Montreal-Pierre Elliott Trudeau International Airport (YUL) to central Montreal is roughly 16 kilometres. It'll take you about 25 minutes to reach the centre driving.

  • It usually takes 45 minutes to get there when travelling by public transport.

  • The last thing you want is a long journey to your hotel if you're landing late on a flight from Seattle to Montreal. Book one of these accommodation options near YUL instead:

  • Pick up a Montreal-Pierre Elliott Trudeau International Airport rental car and discover Montreal and beyond with your own set of wheels. Avis, Alamo and Routes Car Rentals are well-known companies to choose from here.

  • To get the lowest price, book your vehicle from Montreal-Pierre Elliott Trudeau International Airport around four weeks in advance of your Seattle to Montreal flight.

  • The street address for YUL is 975 Romeo Vachon Street North.

St. Hubert Airport (YHU)

  • St. Hubert Airport (YHU) is around 26 kilometres from the centre of Montreal. Once you've hopped off your flight from Seattle to Montreal, it takes approximately 35 minutes to get to the heart of the city in a ride-share or cab.

  • If you travel by public transport, the ride to the centre takes 1 hour 45 minutes or so.

  • Land, grab your St. Hubert Airport rental car, and drive away without missing a beat. Enterprise and Budget are well-known companies to select from here.

  • Avoid the slow-moving lines and paperwork at the rental desk by having everything prearranged. Reserve your ride from YHU ahead of time so you can just grab the keys and get going.

Best time to go to Montreal

  • It's time to choose your trip dates for your flight from Seattle to Montreal. August is the busiest month for a trip to Montreal. If you like a more peaceful vibe, go in February.

  • Book a Seattle to Montreal ticket departing in July if you want to visit the city during its warmest month. Expect temperatures in Montreal to range from 14ºC (57ºF) to 28ºC (82ºF).

  • January has average temperatures of between -19ºC (-2ºF) and -2ºC (28ºF). Look for cheap flights from Seattle to Montreal around that time if you want to travel in cooler conditions.

More about Montreal

  • When it comes to looking for somewhere to lay your head, you'll find the best stays in Montreal right here. Check out these hotels after you've booked your flight from Seattle to Montreal:

  • Mount Royal Park and Montreal Botanical Garden are a couple of top-rated attractions to put on your Montreal itinerary. Keep the sightseeing going at Saint Joseph's Oratory of Mount Royal.

Explore more of Canada

  • Montreal is always a good idea, but there are so many other parts of Canada just waiting to be discovered. About 499 kilometres south-west of Montreal, a visit to Toronto will keep your itinerary busy. Don't miss top attractions like CN Tower, Royal Ontario Museum and Go Tours Canada - Distillery District.

  • Around 153 kilometres west of Montreal, Ottawa is another favourite stop in Canada. Experience this destination's highlights firsthand at Parliament Hill, Rideau Canal and National Gallery of Canada.

Plan the rest of your trip from Seattle to Montreal

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