Cheap flights from Seattle to Montreal from C$ 291

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.
Air Canada Logo
8:40 a.m. - 11:34 p.m.SEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
11h 54m2 stops Vancouver Intl Calgary
Air Canada Logo
1:05 p.m. - 9:57 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
11h 52m2 stops Edmonton Vancouver Intl
C$ 683Air Canada
Fri, 8 Jan - Thu, 14 Jan
Air Canada Logo
8:40 a.m. - 8:30 p.m.SEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
8h 50m1 stop Vancouver Intl
Air Canada Logo
1:05 p.m. - 9:57 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
11h 52m2 stops Edmonton Vancouver Intl
C$ 693Air Canada
Fri, 8 Jan - Thu, 14 Jan
Air Canada Logo
8:40 a.m. - 7:35 p.m.SEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
7h 55m1 stop Vancouver Intl
Air Canada Logo
7:30 a.m. - 2:37 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
10h 07m1 stop Vancouver Intl
C$ 701Air Canada
Fri, 8 Jan - Thu, 14 Jan
Air Canada Logo
3:15 p.m. - 7:10 a.m.SEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
12h 55m2 stops Vancouver Intl Calgary
Air Canada Logo
1:05 p.m. - 9:57 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
11h 52m2 stops Edmonton Vancouver Intl
C$ 703Air Canada
Thu, 31 Dec - Wed, 6 Jan
Air Canada Logo
10:10 a.m. - 8:30 p.m.SEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
7h 20m1 stop Vancouver Intl
Air Canada Logo
1:05 p.m. - 9:57 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
11h 52m2 stops Edmonton Vancouver Intl
C$ 706Air Canada
Thu, 31 Dec - Wed, 6 Jan
Air Canada Logo
10:10 a.m. - 8:30 p.m.SEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
7h 20m1 stop Vancouver Intl
Air Canada Logo
1:05 p.m. - 9:57 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
11h 52m2 stops Edmonton Vancouver Intl
C$ 709Air Canada
Thu, 7 Jan - Wed, 13 Jan
Air Canada Logo
8:40 a.m. - 7:39 p.m.SEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
7h 59m1 stop Vancouver Intl
Air Canada Logo
8:45 a.m. - 2:37 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
8h 52m1 stop Vancouver Intl
C$ 711Air Canada
Thu, 7 Jan - Wed, 13 Jan
Air Canada Logo
10:10 a.m. - 8:30 p.m.SEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
7h 20m1 stop Vancouver Intl
Air Canada Logo
8:45 a.m. - 2:37 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
8h 52m1 stop Vancouver Intl
C$ 712Air Canada
Thu, 31 Dec - Thu, 7 Jan
Air Canada Logo
8:30 a.m. - 7:35 p.m.SEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
8h 05m1 stop Vancouver Intl
Air Canada Logo
6:15 p.m. - 9:32 a.m.YUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
18h 17m1 stop Vancouver Intl
C$ 736Air Canada
Thu, 31 Dec - Wed, 6 Jan
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
8:00 p.m. - 1:40 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
20h 40m2 stops Toronto Pearson Intl Calgary
C$ 749WestJet
Mon, 7 Dec - Mon, 14 Dec

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Air Canada flights from Seattle to Montreal

Our best Air Canada deals on Seattle to Montreal flight tickets
Air Canada
8 Jan
SEA8:40 a.m.Seattle/Tacoma Intl
11h 54m
2 stops
YUL11:34 p.m.Montreal Pierre Elliott Trudeau Intl
14 Jan
YUL1:05 p.m.Montreal Pierre Elliott Trudeau Intl
11h 52m
2 stops
SEA9:57 p.m.Seattle/Tacoma Intl
C$ 683
Air Canada
8 Jan
SEA8:40 a.m.Seattle/Tacoma Intl
8h 50m
1 stop
YUL8:30 p.m.Montreal Pierre Elliott Trudeau Intl
14 Jan
YUL1:05 p.m.Montreal Pierre Elliott Trudeau Intl
11h 52m
2 stops
SEA9:57 p.m.Seattle/Tacoma Intl
C$ 693
Air Canada
8 Jan
SEA8:40 a.m.Seattle/Tacoma Intl
7h 55m
1 stop
YUL7:35 p.m.Montreal Pierre Elliott Trudeau Intl
14 Jan
YUL7:30 a.m.Montreal Pierre Elliott Trudeau Intl
10h 07m
1 stop
SEA2:37 p.m.Seattle/Tacoma Intl
C$ 701

Delta flights from Seattle to Montreal

Our best Delta deals on Seattle to Montreal flight tickets
Delta
7 Jan
SEA12:00 p.m.Seattle/Tacoma Intl
8h 44m
1 stop
YUL11:44 p.m.Montreal Pierre Elliott Trudeau Intl
10 Jan
YUL7:05 a.m.Montreal Pierre Elliott Trudeau Intl
8h 22m
1 stop
SEA12:27 p.m.Seattle/Tacoma Intl
C$ 798
Delta
11 Dec
SEA9:50 a.m.Seattle/Tacoma Intl
10h 43m
1 stop
YUL11:33 p.m.Montreal Pierre Elliott Trudeau Intl
13 Dec
YUL6:00 a.m.Montreal Pierre Elliott Trudeau Intl
8h 10m
1 stop
SEA11:10 a.m.Seattle/Tacoma Intl
C$ 828
Delta
22 Nov
SEA9:45 a.m.Seattle/Tacoma Intl
10h 42m
1 stop
YUL11:27 p.m.Montreal Pierre Elliott Trudeau Intl
25 Nov
YUL7:00 a.m.Montreal Pierre Elliott Trudeau Intl
12h 38m
1 stop
SEA4:38 p.m.Seattle/Tacoma Intl
C$ 1,123

momondo Fare Finder

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

Fly from

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Route

Depart

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Price

Cheapest round-trip

SeattleMontreal

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

SEAYUL

Seattle/Tacoma Intl

Fri 8/1

8:40 a.m.-11:34 p.m.

2 stops11h 54m

Montreal Pierre Elliott Trudeau Intl

Thu 14/1

1:05 p.m.-9:57 p.m.

2 stops11h 52m

C$ 683

SeattleMontreal

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

SEAYUL

Seattle/Tacoma Intl

Fri 8/1

8:40 a.m.-8:30 p.m.

1 stop8h 50m

Montreal Pierre Elliott Trudeau Intl

Thu 14/1

1:05 p.m.-9:57 p.m.

2 stops11h 52m

C$ 693

SeattleMontreal

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

SEAYUL

Seattle/Tacoma Intl

Fri 8/1

8:40 a.m.-7:35 p.m.

1 stop7h 55m

Montreal Pierre Elliott Trudeau Intl

Thu 14/1

7:30 a.m.-2:37 p.m.

1 stop10h 07m

C$ 701

SeattleMontreal

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

SEAYUL

Seattle/Tacoma Intl

Thu 31/12

3:15 p.m.-7:10 a.m.

2 stops12h 55m

Montreal Pierre Elliott Trudeau Intl

Wed 6/1

1:05 p.m.-9:57 p.m.

2 stops11h 52m

C$ 703

SeattleMontreal

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

SEAYUL

Seattle/Tacoma Intl

Thu 31/12

10:10 a.m.-8:30 p.m.

1 stop7h 20m

Montreal Pierre Elliott Trudeau Intl

Wed 6/1

1:05 p.m.-9:57 p.m.

2 stops11h 52m

C$ 706

SeattleMontreal

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

SEAYUL

Seattle/Tacoma Intl

Thu 7/1

10:10 a.m.-8:30 p.m.

1 stop7h 20m

Montreal Pierre Elliott Trudeau Intl

Wed 13/1

1:05 p.m.-9:57 p.m.

2 stops11h 52m

C$ 709

SeattleMontreal

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

SEAYUL

Seattle/Tacoma Intl

Thu 7/1

8:40 a.m.-7:39 p.m.

1 stop7h 59m

Montreal Pierre Elliott Trudeau Intl

Wed 13/1

8:45 a.m.-2:37 p.m.

1 stop8h 52m

C$ 711
Quickest round-trip

SeattleMontreal

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

SEAYUL

Seattle/Tacoma Intl

Thu 31/12

10:10 a.m.-8:30 p.m.

1 stop7h 20m

Montreal Pierre Elliott Trudeau Intl

Thu 7/1

8:45 a.m.-2:37 p.m.

1 stop8h 52m

C$ 712

SeattleMontreal

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

SEAYUL

Seattle/Tacoma Intl

Thu 31/12

8:30 a.m.-7:35 p.m.

1 stop8h 05m

Montreal Pierre Elliott Trudeau Intl

Wed 6/1

6:15 p.m.-9:32 a.m.

1 stop18h 17m

C$ 736

SeattleMontreal

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

SEAYUL

Seattle/Tacoma Intl

Mon 7/12

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

1 stop21h 20m

Montreal Pierre Elliott Trudeau Intl

Mon 14/12

8:00 p.m.-1:40 p.m.

2 stops20h 40m

C$ 749

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$ 823 to C$ 1,016.
The lowest price recently found on this route was C$ 683.

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$ 666, 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$ 826.

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$ 1,009 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$ 391 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 33% 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 November 2026, prices for Seattle to Montreal flights are approximately 22% cheaper 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$ 291

Fastest flight time

7h 20m

Direct flights

None
The best one-way flight to Montreal from Seattle in the past 72 hours is C$ 291. The best round-trip flight deal from Seattle to Montreal found on momondo in the last 72 hours is C$ 683.
The fastest flight from Seattle to Montreal takes 7h 20m
There are no direct flights from Seattle to Montreal. There are no popular flight routes from Seattle to Montreal.

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 7h 20m, 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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1 adult
Tue 15/12
Tue 22/12

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