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Cheap flights from Seattle to Montreal from $126

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Montreal

Cheap round-trip flights

Enter your travel dates to find the best prices.
WestJet Logo
7:35 pm - 7:05 amSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
8h 30m1 stop Calgary
WestJet Logo
7:15 am - 6:45 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
14h 30m1 stop Calgary
$310WestJet
Sun, Oct 18 - Thu, Oct 22
WestJet Logo
7:35 pm - 7:05 amSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
8h 30m1 stop Calgary
WestJet Logo
7:15 am - 6:45 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
14h 30m1 stop Calgary
$310WestJet
Tue, Oct 20 - Fri, Oct 23
Multiple Airlines Logo
7:35 pm - 7:05 amSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
8h 30m1 stop Calgary
Multiple Airlines Logo
8:30 am - 6:45 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
13h 15m2 stops Vancouver Intl Calgary
$395Multiple Airlines
Tue, Oct 20 - Sat, Oct 24
Multiple Airlines Logo
7:35 pm - 7:05 amSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
8h 30m1 stop Calgary
Multiple Airlines Logo
6:45 am - 6:45 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
15h 00m2 stops Toronto Pearson Intl Calgary
$402Multiple Airlines
Wed, Oct 21 - Sat, Oct 24
Delta Logo
11:10 pm - 11:57 amSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
9h 47m1 stop Detroit Metropolitan Wayne County
Delta Logo
7:10 am - 5:10 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
13h 00m1 stop Minneapolis St Paul
$451Delta
Sat, Nov 7 - Wed, Nov 11
Delta Logo
1:45 pm - 11:35 pmSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
6h 50m1 stop Minneapolis St Paul
Delta Logo
6:00 am - 2:23 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
11h 23m1 stop Detroit Metropolitan Wayne County
$451Delta
Thu, Feb 18 - Tue, Feb 23
Air Canada Logo
8:40 am - 11:18 pmSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
11h 38m2 stops Vancouver Intl Calgary
Air Canada Logo
8:45 am - 2:37 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
8h 52m1 stop Vancouver Intl
$484Air Canada
Wed, Oct 28 - Wed, Nov 4
Air Canada Logo
10:10 am - 11:18 pmSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
10h 08m2 stops Vancouver Intl Calgary
Air Canada Logo
7:30 am - 2:37 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
10h 07m1 stop Vancouver Intl
$486Air Canada
Wed, Oct 28 - Wed, Nov 4
United Airlines Logo
8:09 am - 7:48 pmSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
8h 39m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
6:00 am - 12:19 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
9h 19m1 stop Chicago O'Hare Intl
$591United Airlines
Wed, Nov 4 - Wed, Nov 11
United Airlines Logo
8:09 am - 7:48 pmSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
8h 39m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
6:00 am - 8:47 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
17h 47m2 stops Chicago O'Hare Intl San Francisco
$597United Airlines
Wed, Nov 4 - Wed, Nov 11

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WestJet flights from Seattle to Montreal

Our best WestJet deals on Seattle to Montreal flight tickets
WestJet
Oct 18
SEA7:35 pmSeattle/Tacoma Intl
8h 30m
1 stop
YUL7:05 amMontreal Pierre Elliott Trudeau Intl
Oct 22
YUL7:15 amMontreal Pierre Elliott Trudeau Intl
14h 30m
1 stop
SEA6:45 pmSeattle/Tacoma Intl
$310
WestJet
Oct 16
SEA7:35 pmSeattle/Tacoma Intl
8h 30m
1 stop
YUL7:05 amMontreal Pierre Elliott Trudeau Intl
Oct 21
YUL6:45 amMontreal Pierre Elliott Trudeau Intl
15h 00m
2 stops
SEA6:45 pmSeattle/Tacoma Intl
$314
WestJet
Oct 20
SEA7:35 pmSeattle/Tacoma Intl
8h 30m
1 stop
YUL7:05 amMontreal Pierre Elliott Trudeau Intl
Oct 23
YUL6:45 amMontreal Pierre Elliott Trudeau Intl
15h 00m
2 stops
SEA6:45 pmSeattle/Tacoma Intl
$316

American Airlines flights from Seattle to Montreal

Our best American Airlines deals on Seattle to Montreal flight tickets
American Airlines
Oct 28
SEA6:12 amSeattle/Tacoma Intl
7h 40m
1 stop
YUL4:52 pmMontreal Pierre Elliott Trudeau Intl
Nov 4
YUL1:04 pmMontreal Pierre Elliott Trudeau Intl
11h 55m
1 stop
SEA9:59 pmSeattle/Tacoma Intl
$442
American Airlines
Oct 30
SEA6:12 amSeattle/Tacoma Intl
7h 40m
1 stop
YUL4:52 pmMontreal Pierre Elliott Trudeau Intl
Nov 5
YUL2:24 pmMontreal Pierre Elliott Trudeau Intl
11h 46m
1 stop
SEA11:10 pmSeattle/Tacoma Intl
$444
American Airlines
Nov 3
SEA11:34 pmSeattle/Tacoma Intl
8h 51m
1 stop
YUL11:25 amMontreal Pierre Elliott Trudeau Intl
Nov 10
YUL1:04 pmMontreal Pierre Elliott Trudeau Intl
11h 55m
1 stop
SEA9:59 pmSeattle/Tacoma Intl
$445

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

Return

Price

Cheapest round-trip

SeattleMontreal

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

SEAYUL

Seattle/Tacoma Intl

Sun 10/18

7:35 pm-7:05 am

1 stop8h 30m

Montreal Pierre Elliott Trudeau Intl

Thu 10/22

7:15 am-6:45 pm

1 stop14h 30m

$310

SeattleMontreal

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

SEAYUL

Seattle/Tacoma Intl

Tue 10/20

7:35 pm-7:05 am

1 stop8h 30m

Montreal Pierre Elliott Trudeau Intl

Fri 10/23

7:15 am-6:45 pm

1 stop14h 30m

$310

SeattleMontreal

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

SEAYUL

Seattle/Tacoma Intl

Tue 10/20

7:35 pm-7:05 am

1 stop8h 30m

Montreal Pierre Elliott Trudeau Intl

Sat 10/24

8:30 am-6:45 pm

2 stops13h 15m

$395

SeattleMontreal

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

SEAYUL

Seattle/Tacoma Intl

Wed 10/21

7:35 pm-7:05 am

1 stop8h 30m

Montreal Pierre Elliott Trudeau Intl

Sat 10/24

6:45 am-6:45 pm

2 stops15h 00m

$402

SeattleMontreal

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

SEAYUL

Seattle/Tacoma Intl

Sat 11/7

11:10 pm-11:57 am

1 stop9h 47m

Montreal Pierre Elliott Trudeau Intl

Wed 11/11

7:10 am-5:10 pm

1 stop13h 00m

$451

SeattleMontreal

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

SEAYUL

Seattle/Tacoma Intl

Thu 2/18

1:45 pm-11:35 pm

1 stop6h 50m

Montreal Pierre Elliott Trudeau Intl

Tue 2/23

6:00 am-2:23 pm

1 stop11h 23m

$451

SeattleMontreal

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

SEAYUL

Seattle/Tacoma Intl

Wed 10/28

8:40 am-11:18 pm

2 stops11h 38m

Montreal Pierre Elliott Trudeau Intl

Wed 11/4

8:45 am-2:37 pm

1 stop8h 52m

$484

SeattleMontreal

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

SEAYUL

Seattle/Tacoma Intl

Wed 10/28

10:10 am-11:18 pm

2 stops10h 08m

Montreal Pierre Elliott Trudeau Intl

Wed 11/4

7:30 am-2:37 pm

1 stop10h 07m

$486
Quickest round-trip

SeattleMontreal

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

SEAYUL

Seattle/Tacoma Intl

Wed 11/4

8:09 am-7:48 pm

1 stop8h 39m

Montreal Pierre Elliott Trudeau Intl

Wed 11/11

6:00 am-12:19 pm

1 stop9h 19m

$591

SeattleMontreal

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

SEAYUL

Seattle/Tacoma Intl

Wed 11/4

8:09 am-7:48 pm

1 stop8h 39m

Montreal Pierre Elliott Trudeau Intl

Wed 11/11

6:00 am-8:47 pm

2 stops17h 47m

$597

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 $442 to $702.
The lowest price recently found on this route was $310.

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 $467, are often lower during this time because this is during the off-season. If you are unable to visit Montreal during the month of March, then departing from Seattle during the month August is also very affordable. Most momondo users find prices during this month for around $579.

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

The cheapest day to depart from Seattle to Montreal is on a Wednesday when prices can be found for as low as $730. Flights from Seattle to Montreal on a Friday will generally be more expensive and average around $886. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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 $709 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 $274 on momondo.

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

There are 3 cabin classes 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 46% 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 September 2026, prices for Seattle to Montreal flights are approximately 42% 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

$126

Fastest flight time

6h 59m

Direct flights

None
The best one-way flight to Montreal from Seattle in the past 72 hours is $126. The best round-trip flight deal from Seattle to Montreal found on momondo in the last 72 hours is $310.
The fastest flight from Seattle to Montreal takes 6h 59m
There are no direct flights from Seattle to Montreal. Popular non-direct route for this connection is Seattle/Tacoma Intl Airport - Montreal Pierre Elliott Trudeau Intl Airport.
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 2282.0 mi. Typically, this will take 6h 59m by plane in normal conditions.

  • 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 are updated daily.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Montreal?

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Montreal.

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

    The required travel and health documents for your Montreal trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Montreal. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

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

Best airlines flying from Seattle to Montreal

Compare and see reviews for airlines that fly from Seattle to Montreal with momondo
Airline
Rating
Free Cancellation
Price
WestJetPriceFrom $151Free CancellationRating
7.2
3,446 reviews
Search WestJet flights
United AirlinesPriceFrom $265Free CancellationRating
7.4
10,222 reviews
Search United Airlines flights
DeltaPriceFrom $310Free CancellationRating
7.8
8,597 reviews
Search Delta flights
Air CanadaPriceFrom $462Free CancellationRating
7.1
11,661 reviews
Search Air Canada flights

Why use momondo?

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

Finding the right flight to Montreal from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Montreal quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for Seattle to Montreal flights to just show those with flexible booking policies.

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?

Of course. momondo tracks the price of Seattle to Montreal flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to Canada

Fly into one of these airports located in Montreal

Montreal St Hubert Airport
Montreal Pierre Elliott Trudeau Intl Airport