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Cheap flights from Seattle to Montreal from C$ 301

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Seattle to Montreal

Cheap round-trip flights

Enter your travel dates to find the best prices.
WestJet Logo
3:30 p.m. - 3:50 p.m.SEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
21h 20m1 stop Calgary
WestJet Logo
5:15 p.m. - 2:40 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
24h 25m1 stop Calgary
C$ 652WestJet
Tue, 6 Apr - Tue, 13 Apr
WestJet Logo
3:30 p.m. - 3:50 p.m.SEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
21h 20m1 stop Calgary
WestJet Logo
8:00 p.m. - 2:40 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
21h 40m2 stops Toronto Pearson Intl Calgary
C$ 660WestJet
Tue, 6 Apr - Tue, 13 Apr
American Airlines Logo
11:34 p.m. - 11:25 a.m.SEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
8h 51m1 stop Chicago O'Hare Intl
American Airlines Logo
2:24 p.m. - 11:19 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
11h 55m1 stop Charlotte Douglas
C$ 670American Airlines
Fri, 13 Nov - Thu, 19 Nov
WestJet Logo
2:30 p.m. - 2:50 p.m.SEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
21h 20m1 stop Calgary
WestJet Logo
4:15 p.m. - 1:40 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
24h 25m1 stop Calgary
C$ 680WestJet
Thu, 12 Nov - Thu, 19 Nov
Multiple Airlines Logo
2:30 p.m. - 2:50 p.m.SEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
21h 20m1 stop Calgary
Multiple Airlines Logo
8:30 a.m. - 6:22 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
12h 52m2 stops Calgary Vancouver Intl
C$ 682Multiple Airlines
Mon, 23 Nov - Tue, 1 Dec
Delta Logo
11:15 p.m. - 11:52 a.m.SEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
9h 37m1 stop Detroit Metropolitan Wayne County
Delta Logo
4:50 p.m. - 9:58 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
8h 08m1 stop Detroit Metropolitan Wayne County
C$ 683Delta
Wed, 11 Nov - Wed, 18 Nov
WestJet Logo
2:30 p.m. - 2:50 p.m.SEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
21h 20m1 stop Calgary
WestJet Logo
4:15 p.m. - 1:40 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
24h 25m1 stop Calgary
C$ 691WestJet
Mon, 30 Nov - Thu, 3 Dec
American Airlines Logo
9:15 a.m. - 10:48 p.m.SEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
10h 33m1 stop Philadelphia
American Airlines Logo
7:33 a.m. - 3:58 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
11h 25m2 stops Philadelphia Chicago O'Hare Intl
C$ 697American Airlines
Wed, 2 Dec - Sun, 6 Dec
Multiple Airlines Logo
2:30 p.m. - 2:50 p.m.SEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
21h 20m1 stop Calgary
Multiple Airlines Logo
2:25 p.m. - 9:57 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
10h 32m2 stops Winnipeg Vancouver Intl
C$ 699Multiple Airlines
Thu, 12 Nov - Wed, 18 Nov
American Airlines Logo
11:39 p.m. - 3:26 p.m.SEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
12h 47m2 stops Chicago O'Hare Intl Philadelphia
American Airlines Logo
7:33 a.m. - 3:58 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
11h 25m2 stops Philadelphia Chicago O'Hare Intl
C$ 704American Airlines
Wed, 2 Dec - Sun, 6 Dec

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American Airlines flights from Seattle to Montreal

Our best American Airlines deals on Seattle to Montreal flight tickets
American Airlines
13 Nov
SEA11:34 p.m.Seattle/Tacoma Intl
8h 51m
1 stop
YUL11:25 a.m.Montreal Pierre Elliott Trudeau Intl
19 Nov
YUL2:24 p.m.Montreal Pierre Elliott Trudeau Intl
11h 55m
1 stop
SEA11:19 p.m.Seattle/Tacoma Intl
C$ 670
American Airlines
7 Jan
SEA11:55 p.m.Seattle/Tacoma Intl
12h 29m
2 stops
YUL3:24 p.m.Montreal Pierre Elliott Trudeau Intl
10 Jan
YUL12:10 p.m.Montreal Pierre Elliott Trudeau Intl
11h 03m
1 stop
SEA8:13 p.m.Seattle/Tacoma Intl
C$ 697
American Airlines
10 Nov
SEA7:30 a.m.Seattle/Tacoma Intl
12h 23m
2 stops
YUL10:53 p.m.Montreal Pierre Elliott Trudeau Intl
17 Nov
YUL12:10 p.m.Montreal Pierre Elliott Trudeau Intl
13h 01m
2 stops
SEA10:11 p.m.Seattle/Tacoma Intl
C$ 704

Delta flights from Seattle to Montreal

Our best Delta deals on Seattle to Montreal flight tickets
Delta
11 Nov
SEA11:40 p.m.Seattle/Tacoma Intl
8h 57m
1 stop
YUL11:37 a.m.Montreal Pierre Elliott Trudeau Intl
19 Nov
YUL7:00 a.m.Montreal Pierre Elliott Trudeau Intl
10h 30m
1 stop
SEA2:30 p.m.Seattle/Tacoma Intl
C$ 683
Delta
12 Nov
SEA9:45 a.m.Seattle/Tacoma Intl
10h 42m
1 stop
YUL11:27 p.m.Montreal Pierre Elliott Trudeau Intl
14 Nov
YUL2:43 p.m.Montreal Pierre Elliott Trudeau Intl
12h 14m
1 stop
SEA11:57 p.m.Seattle/Tacoma Intl
C$ 730
Delta
7 Nov
SEA8:25 a.m.Seattle/Tacoma Intl
11h 57m
1 stop
YUL11:22 p.m.Montreal Pierre Elliott Trudeau Intl
14 Nov
YUL7:00 a.m.Montreal Pierre Elliott Trudeau Intl
12h 38m
1 stop
SEA4:38 p.m.Seattle/Tacoma Intl
C$ 736

momondo Fare Finder

 
Use the filters below to find and compare flights from Seattle to Montreal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleMontreal

SEA Seattle/Tacoma Intl - YUL Montreal Pierre Elliott Trudeau Intl

SEAYUL

Seattle/Tacoma Intl

Tue 6/4

3:30 p.m.-3:50 p.m.

1 stop21h 20m

Montreal Pierre Elliott Trudeau Intl

Tue 13/4

5:15 p.m.-2:40 p.m.

1 stop24h 25m

C$ 652

SeattleMontreal

SEA Seattle/Tacoma Intl - YUL Montreal Pierre Elliott Trudeau Intl

SEAYUL

Seattle/Tacoma Intl

Tue 6/4

3:30 p.m.-3:50 p.m.

1 stop21h 20m

Montreal Pierre Elliott Trudeau Intl

Tue 13/4

8:00 p.m.-2:40 p.m.

2 stops21h 40m

C$ 660

SeattleMontreal

SEA Seattle/Tacoma Intl - YUL Montreal Pierre Elliott Trudeau Intl

SEAYUL

Seattle/Tacoma Intl

Fri 13/11

11:34 p.m.-11:25 a.m.

1 stop8h 51m

Montreal Pierre Elliott Trudeau Intl

Thu 19/11

2:24 p.m.-11:19 p.m.

1 stop11h 55m

C$ 670

SeattleMontreal

SEA Seattle/Tacoma Intl - YUL Montreal Pierre Elliott Trudeau Intl

SEAYUL

Seattle/Tacoma Intl

Thu 12/11

2:30 p.m.-2:50 p.m.

1 stop21h 20m

Montreal Pierre Elliott Trudeau Intl

Thu 19/11

4:15 p.m.-1:40 p.m.

1 stop24h 25m

C$ 680

SeattleMontreal

SEA Seattle/Tacoma Intl - YUL Montreal Pierre Elliott Trudeau Intl

SEAYUL

Seattle/Tacoma Intl

Mon 23/11

2:30 p.m.-2:50 p.m.

1 stop21h 20m

Montreal Pierre Elliott Trudeau Intl

Tue 1/12

8:30 a.m.-6:22 p.m.

2 stops12h 52m

C$ 682
Quickest round-trip

SeattleMontreal

SEA Seattle/Tacoma Intl - YUL Montreal Pierre Elliott Trudeau Intl

SEAYUL

Seattle/Tacoma Intl

Wed 11/11

11:15 p.m.-11:52 a.m.

1 stop9h 37m

Montreal Pierre Elliott Trudeau Intl

Wed 18/11

4:50 p.m.-9:58 p.m.

1 stop8h 08m

C$ 683

SeattleMontreal

SEA Seattle/Tacoma Intl - YUL Montreal Pierre Elliott Trudeau Intl

SEAYUL

Seattle/Tacoma Intl

Mon 30/11

2:30 p.m.-2:50 p.m.

1 stop21h 20m

Montreal Pierre Elliott Trudeau Intl

Thu 3/12

4:15 p.m.-1:40 p.m.

1 stop24h 25m

C$ 691

SeattleMontreal

SEA Seattle/Tacoma Intl - YUL Montreal Pierre Elliott Trudeau Intl

SEAYUL

Seattle/Tacoma Intl

Wed 2/12

9:15 a.m.-10:48 p.m.

1 stop10h 33m

Montreal Pierre Elliott Trudeau Intl

Sun 6/12

7:33 a.m.-3:58 p.m.

2 stops11h 25m

C$ 697

SeattleMontreal

SEA Seattle/Tacoma Intl - YUL Montreal Pierre Elliott Trudeau Intl

SEAYUL

Seattle/Tacoma Intl

Thu 12/11

2:30 p.m.-2:50 p.m.

1 stop21h 20m

Montreal Pierre Elliott Trudeau Intl

Wed 18/11

2:25 p.m.-9:57 p.m.

2 stops10h 32m

C$ 699

SeattleMontreal

SEA Seattle/Tacoma Intl - YUL Montreal Pierre Elliott Trudeau Intl

SEAYUL

Seattle/Tacoma Intl

Wed 2/12

11:39 p.m.-3:26 p.m.

2 stops12h 47m

Montreal Pierre Elliott Trudeau Intl

Sun 6/12

7:33 a.m.-3:58 p.m.

2 stops11h 25m

C$ 704

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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?

Prices are currently low for flights on this route.

Typical prices usually range from C$ 709 to C$ 1,052.
The lowest price recently found on this route was C$ 652.

What is the cheapest month to fly to Montreal?

The cheapest month to fly to Montreal from Seattle is in March. Flight prices, which tend to average around C$ 663, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of March, then book flights to Montreal from Seattle during August instead. Flights to Montreal in August, while not as cheap as those in March, still average around C$ 822.

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 from Seattle to Montreal?

You are more likely to see cheaper flights to Montreal from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Montreal for around C$ 1,001 when searching 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$ 389 on momondo.

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

There is only 1 cabin class available to choose from on Seattle to Montreal flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seattle to Montreal flights?

You could potentially save up to 47% on your flight if you consider stops on a Seattle to Montreal flight.

How have Seattle to Montreal flight prices changed over time?

As of October 2026, prices for Seattle to Montreal flights are approximately 0% 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$ 301

Fastest flight time

6h 52m

Direct flights

None
The best one-way flight to Montreal from Seattle in the past 72 hours is C$ 301. The best round-trip flight deal from Seattle to Montreal found on momondo in the last 72 hours is C$ 652.
The fastest flight from Seattle to Montreal takes 6h 52m
There are no direct flights from Seattle to Montreal. There are no popular flight routes from Seattle to Montreal.
Search flight deals

Frequently asked questions about flying from Seattle to Montreal

  • 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 6h 52m, 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?

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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Find better results for your trip to Canada

Fly into one of these airports located in Montreal

MET - Montreal Metropolitan Airport
Montreal Pierre Elliott Trudeau Intl Airport