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Cheap flights from Seattle to Montreal from C$ 210

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Montreal departing on 1/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Seattle to Montreal

Cheap round-trip flights

These are some of the best round-trip flight deals from Seattle to Montreal that have been recently found on momondo from popular airlines, departing in the coming months.
WestJet Logo
1:50 p.m. - 12:41 a.m.SEA-YUL
7h 51m1 stop
WestJet Logo
7:00 a.m. - 12:59 p.m.YUL-SEA
8h 59m1 stop
C$ 459WestJet
Find Deal
Wed, 1 Oct - Wed, 8 Oct
WestJet Logo
1:50 p.m. - 12:41 a.m.SEA-YUL
7h 51m1 stop
WestJet Logo
7:00 a.m. - 12:59 p.m.YUL-SEA
8h 59m1 stop
C$ 481WestJet
Find Deal
Wed, 1 Oct - Tue, 7 Oct
WestJet Logo
2:05 p.m. - 12:41 a.m.SEA-YUL
7h 36m1 stop
WestJet Logo
7:00 a.m. - 12:59 p.m.YUL-SEA
8h 59m1 stop
C$ 489WestJet
Find Deal
Tue, 30 Sep - Wed, 8 Oct
WestJet Logo
1:50 p.m. - 12:43 a.m.SEA-YUL
7h 53m1 stop
WestJet Logo
7:00 a.m. - 12:58 p.m.YUL-SEA
8h 58m1 stop
C$ 500WestJet
Find Deal
Wed, 4 Jun - Wed, 11 Jun
 Logo
3:20 p.m. - 7:57 p.m.SEA-YUL
25h 37m2 stops
 Logo
7:00 a.m. - 12:58 p.m.YUL-SEA
8h 58m1 stop
C$ 506
Find Deal
Wed, 4 Jun - Mon, 9 Jun
 Logo
3:20 p.m. - 7:57 p.m.SEA-YUL
25h 37m2 stops
 Logo
7:00 a.m. - 12:58 p.m.YUL-SEA
8h 58m1 stop
C$ 510
Find Deal
Wed, 4 Jun - Mon, 9 Jun
Delta Logo
10:55 p.m. - 4:04 p.m.SEA-YUL
14h 09m2 stops
Delta Logo
6:15 a.m. - 12:30 p.m.YUL-SEA
9h 15m2 stops
C$ 748Delta
Find Deal
Mon, 2 Jun - Fri, 6 Jun
Delta Logo
8:55 a.m. - 11:54 p.m.SEA-YUL
11h 59m2 stops
Delta Logo
7:00 a.m. - 3:32 p.m.YUL-SEA
11h 32m2 stops
C$ 755Delta
Find Deal
Sat, 14 Jun - Sat, 21 Jun
Air Canada Logo
2:55 p.m. - 12:05 p.m.SEA-YUL
18h 10m2 stops
Air Canada Logo
5:45 p.m. - 8:41 p.m.YUL-SEA
5h 56mdirect
C$ 757Air Canada
Find Deal
Fri, 13 Jun - Fri, 20 Jun
Air Canada Logo
2:55 p.m. - 7:10 a.m.SEA-YUL
13h 15m2 stops
Air Canada Logo
5:45 p.m. - 8:41 p.m.YUL-SEA
5h 56mdirect
C$ 759Air Canada
Find Deal
Fri, 13 Jun - Fri, 20 Jun

Air Canada flights from Seattle to Montreal

Our best Air Canada deals on Seattle to Montreal flight tickets
Air Canada
13 Jun
SEA2:55 p.m.Seattle/Tacoma Intl
18h 10m
2 stops
YUL12:05 p.m.Montreal Pierre Elliott Trudeau Intl
20 Jun
YUL5:45 p.m.Montreal Pierre Elliott Trudeau Intl
5h 56m
SEA8:41 p.m.Seattle/Tacoma Intl
Air Canada
13 Jun
SEA2:55 p.m.Seattle/Tacoma Intl
13h 15m
2 stops
YUL7:10 a.m.Montreal Pierre Elliott Trudeau Intl
20 Jun
YUL5:45 p.m.Montreal Pierre Elliott Trudeau Intl
5h 56m
SEA8:41 p.m.Seattle/Tacoma Intl
Air Canada
14 Jun
SEA2:55 p.m.Seattle/Tacoma Intl
13h 15m
2 stops
YUL7:10 a.m.Montreal Pierre Elliott Trudeau Intl
21 Jun
YUL5:45 p.m.Montreal Pierre Elliott Trudeau Intl
5h 56m
SEA8:41 p.m.Seattle/Tacoma Intl

Delta flights from Seattle to Montreal

Our best Delta deals on Seattle to Montreal flight tickets
Delta
2 Jun
SEA10:55 p.m.Seattle/Tacoma Intl
14h 09m
2 stops
YUL4:04 p.m.Montreal Pierre Elliott Trudeau Intl
6 Jun
YUL6:15 a.m.Montreal Pierre Elliott Trudeau Intl
9h 15m
2 stops
SEA12:30 p.m.Seattle/Tacoma Intl
Delta
14 Jun
SEA8:55 a.m.Seattle/Tacoma Intl
11h 59m
2 stops
YUL11:54 p.m.Montreal Pierre Elliott Trudeau Intl
21 Jun
YUL7:00 a.m.Montreal Pierre Elliott Trudeau Intl
11h 32m
2 stops
SEA3:32 p.m.Seattle/Tacoma Intl
Delta
29 May
SEA7:40 a.m.Seattle/Tacoma Intl
13h 14m
1 stop
YUL11:54 p.m.Montreal Pierre Elliott Trudeau Intl
4 Jun
YUL7:00 a.m.Montreal Pierre Elliott Trudeau Intl
12h 36m
2 stops
SEA4:36 p.m.Seattle/Tacoma Intl

See travel insights to Montreal from

How to get the cheapest flight ticket from Seattle to Montreal

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Seattle and Montreal?

What is the cheapest month to fly to Montreal?

The cheapest month to fly to Montreal from Seattle is in May. Flight prices, which tend to average around C$ 594, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of May, then book flights to Montreal from Seattle during January instead. Flights to Montreal in January, while not as cheap as those in May, still average around C$ 768.

What is the cheapest day to depart on your flight to Montreal?

Our data shows that Sunday is the least expensive day to fly to Montreal. Tickets to fly out on this day can be as low as C$ 870. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Montreal for around C$ 1,341.

What is the cheapest time of day to depart on your flight to Montreal?

Our data shows that the cheapest Seattle to Montreal flights are usually those with departure times in the evening. Our users have found flights to Montreal in the evening for as low as C$ 314. Flights in the morning are often more expensive with an average ticket price of C$ 1,261.

What is the cheapest Seattle/Tacoma Intl to Montreal flight route?

Fly from Seattle/Tacoma Intl to Montreal Pierre Elliott Trudeau Intl for the best Seattle/Tacoma Intl - Montreal flight prices

How far in advance should I book a flight to Montreal?

You are more likely to see cheaper flights to Montreal from Seattle when booking 8 weeks ahead of your departure date. In general, you can expect to find flights to Montreal for around C$ 770 when searching 8 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Montreal from Seattle for as low as C$ 608 on momondo.

What cabin class options are available on Seattle/Tacoma Intl to Montreal flights?

There are 2 cabin classes available to choose from on Seattle/Tacoma Intl to Montreal flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Seattle to Montreal flight prices changed over time?

As of April 2025, prices for Seattle to Montreal flights are approximately 57% more expensive when compared to flights at the same time last year.

When to book flights from Seattle to Montreal

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Montreal according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Montreal (SEA to YMQ) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Montreal

Best price found

C$ 210

Fastest flight time

5h 09m

Direct flights

Every day

Airports in Montreal

1 airport
The best one-way flight to Montreal from Seattle in the past 72 hours is C$ 210. The best round-trip flight deal from Seattle to Montreal found on momondo in the last 72 hours is C$ 459.
The fastest flight from Seattle to Montreal takes 5h 09m
Direct flights go from Seattle to Montreal every day.
There is 1 airport near Montreal: Montreal Pierre Elliott Trudeau Intl (YUL)

  • How far is Seattle/Tacoma Intl to Montreal by plane?

    The straight-line distance from Seattle/Tacoma Intl to Montreal is 3672.5 km. Flights usually cover this in 5h 10m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Montreal?

    Prices for flights from Seattle/Tacoma Intl Airport to Montreal refresh daily.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Montreal?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Montreal.

  • What documentation or ID do you need to fly to Montreal?

    The travel and health documents required for your trip to Montreal can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Montreal. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Seattle to Montreal?

  • What is the most popular airline from Seattle to Montreal?


Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Montreal?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Montreal from Seattle.

Can I find flights from Seattle to Montreal with flexible booking policies on momondo?

Flights from Seattle to Montreal with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Seattle to Montreal?

momondo provides multiple filters to help you find the best flight to Montreal from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Seattle to Montreal right now. Can momondo alert me if prices change?

Price alerts on flights to Montreal from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


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Mon 5/5
Mon 12/5

Find better results for your trip to Canada

Fly into one of these airports located in Montreal

Airports listed have a maximum distance of 15.1 km from Montreal