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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Seattle from $197

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Montreal Pierre Elliott Trudeau Intl Airport to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
WestJet Logo
8:00 pm - 9:40 amYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
16h 40m1 stop Calgary
WestJet Logo
7:35 pm - 7:05 amSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
8h 30m1 stop Calgary
$308WestJet
Fri, Oct 16 - Thu, Oct 22
WestJet Logo
7:20 pm - 9:40 amYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
17h 20m2 stops Toronto Pearson Intl Calgary
WestJet Logo
7:35 pm - 7:05 amSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
8h 30m1 stop Calgary
$332WestJet
Fri, Oct 16 - Thu, Oct 22
WestJet Logo
6:45 am - 6:45 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
15h 00m2 stops Toronto Pearson Intl Calgary
WestJet Logo
7:35 pm - 7:05 amSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
8h 30m1 stop Calgary
$337WestJet
Wed, Oct 14 - Sun, Oct 18
Delta Logo
12:45 pm - 6:38 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
8h 53m1 stop Detroit Metropolitan Wayne County
Delta Logo
9:20 pm - 1:39 pmSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
13h 19m1 stop Atlanta Hartsfield-Jackson
$363Delta
Fri, Jan 8 - Sat, Jan 16
Delta Logo
7:00 am - 4:58 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
12h 58m1 stop Minneapolis St Paul
Delta Logo
8:25 am - 11:22 pmSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
11h 57m1 stop Minneapolis St Paul
$363Delta
Mon, Oct 26 - Sun, Nov 1
Delta Logo
7:00 am - 4:58 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
12h 58m1 stop Minneapolis St Paul
Delta Logo
11:59 pm - 11:38 amSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
8h 39m1 stop Atlanta Hartsfield-Jackson
$364Delta
Fri, Oct 23 - Thu, Oct 29
American Airlines Logo
2:24 pm - 10:34 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
11h 10m1 stop Charlotte Douglas
American Airlines Logo
11:34 pm - 11:25 amSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
8h 51m1 stop Chicago O'Hare Intl
$365American Airlines
Tue, Nov 3 - Fri, Nov 6
American Airlines Logo
1:04 pm - 9:59 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
11h 55m1 stop Philadelphia
American Airlines Logo
11:34 pm - 11:25 amSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
8h 51m1 stop Chicago O'Hare Intl
$373American Airlines
Tue, Nov 3 - Fri, Nov 6
Air Canada Logo
7:30 am - 2:22 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
9h 52m1 stop Vancouver Intl
Air Canada Logo
8:40 am - 11:18 pmSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
11h 38m2 stops Vancouver Intl Calgary
$451Air Canada
Thu, Oct 22 - Wed, Oct 28
Air Canada Logo
1:10 pm - 8:59 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
10h 49m1 stop Toronto Pearson Intl
Air Canada Logo
8:40 am - 7:35 pmSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
7h 55m1 stop Vancouver Intl
$477Air Canada
Wed, Dec 23 - Wed, Dec 30

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Air Canada flights from Montreal Pierre Elliott Trudeau Intl Airport to Seattle

Our best Air Canada deals on Montreal Pierre Elliott Trudeau Intl Airport to Seattle flight tickets
Air Canada
Oct 22
YUL7:30 amMontreal Pierre Elliott Trudeau Intl
9h 52m
1 stop
SEA2:22 pmSeattle/Tacoma Intl
Oct 28
SEA8:40 amSeattle/Tacoma Intl
11h 38m
2 stops
YUL11:18 pmMontreal Pierre Elliott Trudeau Intl
$451
Air Canada
Sep 29
YUL2:15 pmMontreal Pierre Elliott Trudeau Intl
11h 32m
2 stops
SEA10:47 pmSeattle/Tacoma Intl
Oct 6
SEA5:50 amSeattle/Tacoma Intl
11h 40m
2 stops
YUL8:30 pmMontreal Pierre Elliott Trudeau Intl
$553
Air Canada
Sep 29
YUL8:00 amMontreal Pierre Elliott Trudeau Intl
9h 17m
2 stops
SEA2:17 pmSeattle/Tacoma Intl
Oct 7
SEA5:50 amSeattle/Tacoma Intl
14h 53m
2 stops
YUL11:43 pmMontreal Pierre Elliott Trudeau Intl
$572

American Airlines flights from Montreal Pierre Elliott Trudeau Intl Airport to Seattle

Our best American Airlines deals on Montreal Pierre Elliott Trudeau Intl Airport to Seattle flight tickets
American Airlines
Nov 3
YUL1:04 pmMontreal Pierre Elliott Trudeau Intl
11h 55m
1 stop
SEA9:59 pmSeattle/Tacoma Intl
Nov 6
SEA11:34 pmSeattle/Tacoma Intl
8h 51m
1 stop
YUL11:25 amMontreal Pierre Elliott Trudeau Intl
$373
American Airlines
Jan 14
YUL12:10 pmMontreal Pierre Elliott Trudeau Intl
11h 03m
1 stop
SEA8:13 pmSeattle/Tacoma Intl
Jan 23
SEA11:55 pmSeattle/Tacoma Intl
8h 35m
1 stop
YUL11:30 amMontreal Pierre Elliott Trudeau Intl
$374
American Airlines
Nov 3
YUL12:10 pmMontreal Pierre Elliott Trudeau Intl
11h 10m
1 stop
SEA8:20 pmSeattle/Tacoma Intl
Nov 6
SEA11:34 pmSeattle/Tacoma Intl
12h 54m
2 stops
YUL3:28 pmMontreal Pierre Elliott Trudeau Intl
$375

momondo Fare Finder

 
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to Seattle that are best for you.

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Price

Cheapest round-trip

MontrealSeattle

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

YULSEA

Montreal Pierre Elliott Trudeau Intl

Fri 10/16

8:00 pm-9:40 am

1 stop16h 40m

Seattle/Tacoma Intl

Thu 10/22

7:35 pm-7:05 am

1 stop8h 30m

$308

MontrealSeattle

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

YULSEA

Montreal Pierre Elliott Trudeau Intl

Fri 10/16

7:20 pm-9:40 am

2 stops17h 20m

Seattle/Tacoma Intl

Thu 10/22

7:35 pm-7:05 am

1 stop8h 30m

$332

MontrealSeattle

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

YULSEA

Montreal Pierre Elliott Trudeau Intl

Wed 10/14

6:45 am-6:45 pm

2 stops15h 00m

Seattle/Tacoma Intl

Sun 10/18

7:35 pm-7:05 am

1 stop8h 30m

$337

MontrealSeattle

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

YULSEA

Montreal Pierre Elliott Trudeau Intl

Fri 1/8

12:45 pm-6:38 pm

1 stop8h 53m

Seattle/Tacoma Intl

Sat 1/16

9:20 pm-1:39 pm

1 stop13h 19m

$363

MontrealSeattle

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

YULSEA

Montreal Pierre Elliott Trudeau Intl

Mon 10/26

7:00 am-4:58 pm

1 stop12h 58m

Seattle/Tacoma Intl

Sun 11/1

8:25 am-11:22 pm

1 stop11h 57m

$363

MontrealSeattle

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

YULSEA

Montreal Pierre Elliott Trudeau Intl

Fri 10/23

7:00 am-4:58 pm

1 stop12h 58m

Seattle/Tacoma Intl

Thu 10/29

11:59 pm-11:38 am

1 stop8h 39m

$364

MontrealSeattle

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

YULSEA

Montreal Pierre Elliott Trudeau Intl

Tue 11/3

2:24 pm-10:34 pm

1 stop11h 10m

Seattle/Tacoma Intl

Fri 11/6

11:34 pm-11:25 am

1 stop8h 51m

$365

MontrealSeattle

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

YULSEA

Montreal Pierre Elliott Trudeau Intl

Tue 11/3

1:04 pm-9:59 pm

1 stop11h 55m

Seattle/Tacoma Intl

Fri 11/6

11:34 pm-11:25 am

1 stop8h 51m

$373

MontrealSeattle

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

YULSEA

Montreal Pierre Elliott Trudeau Intl

Thu 10/22

7:30 am-2:22 pm

1 stop9h 52m

Seattle/Tacoma Intl

Wed 10/28

8:40 am-11:18 pm

2 stops11h 38m

$451
Quickest round-trip

MontrealSeattle

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

YULSEA

Montreal Pierre Elliott Trudeau Intl

Wed 12/23

1:10 pm-8:59 pm

1 stop10h 49m

Seattle/Tacoma Intl

Wed 12/30

8:40 am-7:35 pm

1 stop7h 55m

$477

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 Seattle from

How to get the cheapest flight ticket from Montreal Pierre Elliott Trudeau Intl Airport to Seattle

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 Montreal Pierre Elliott Trudeau Intl Airport and Seattle?

Prices are currently low for flights on this route.

Typical prices usually range from $394 to $648.
The lowest price recently found on this route was $308.

What is the cheapest month to fly to Seattle?

In general, February is the cheapest month to fly from Montreal Pierre Elliott Trudeau Intl Airport to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $417. If you don’t want to visit Seattle in February, then you should wait until January to fly from Montreal Pierre Elliott Trudeau Intl Airport, when ticket prices are also cheap, with an average price of $432.

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

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

How far in advance should I book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Seattle?

You are more likely to see cheaper flights to Seattle from Montreal Pierre Elliott Trudeau Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $501 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Montreal Pierre Elliott Trudeau Intl Airport for as low as $304 on momondo.

What cabin class options are available on Montreal Pierre Elliott Trudeau Intl Airport to Seattle flights?

There is only 1 cabin class available to choose from on Montreal Pierre Elliott Trudeau Intl Airport to Seattle 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 Montreal Pierre Elliott Trudeau Intl Airport to Seattle flights?

You could potentially save up to 7% on your flight if you consider stops on a Montreal Pierre Elliott Trudeau Intl Airport to Seattle flight.

How have Montreal Pierre Elliott Trudeau Intl Airport to Seattle flight prices changed over time?

As of September 2026, prices for Montreal Pierre Elliott Trudeau Intl Airport to Seattle flights are approximately 5% cheaper when compared to flights at the same time last year.

When to book flights from Montreal Pierre Elliott Trudeau Intl Airport to Seattle

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

Cheap Montreal Pierre Elliott Trudeau Intl Airport to Seattle (YUL to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montreal Pierre Elliott Trudeau Intl Airport to Seattle

Best Price Found

$197

Fastest flight time

8h 53m

Direct flights

None
The best one-way flight to Seattle from Montreal Pierre Elliott Trudeau Intl Airport in the past 72 hours is $197. The best round-trip flight deal from Montreal Pierre Elliott Trudeau Intl Airport to Seattle found on momondo in the last 72 hours is $308.
The fastest flight from Montreal Pierre Elliott Trudeau Intl Airport to Seattle takes 8h 53m
There are no direct flights from Montreal Pierre Elliott Trudeau Intl Airport to Seattle. There are no popular flight routes from Montreal Pierre Elliott Trudeau Intl Airport to Seattle.
Search flight deals

Frequently asked questions about flying from Montreal Pierre Elliott Trudeau Intl Airport to Seattle

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

    A flight from Montreal Pierre Elliott Trudeau Intl to Seattle/Tacoma Intl will travel around 2274.5 mi. In terms of flight time, this usually takes a little over 8h 53m.

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

    Prices for flights from Montreal Pierre Elliott Trudeau Intl Airport to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

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

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

    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 Montreal Pierre Elliott Trudeau Intl Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Montreal Pierre Elliott Trudeau Intl Airport to Seattle?

  • What is the most popular airline from Montreal Pierre Elliott Trudeau Intl Airport to Seattle?

Best airlines flying from Montreal Pierre Elliott Trudeau Intl Airport to Seattle

Compare and see reviews for airlines that fly from Montreal Pierre Elliott Trudeau Intl Airport to Seattle with momondo
Airline
Rating
Free Cancellation
Price
WestJetPriceFrom $226Free CancellationRating
7.2
3,448 reviews
Search WestJet flights
Air CanadaPriceFrom $388Free CancellationRating
7.1
11,676 reviews
Search Air Canada flights
DeltaPriceFrom $388Free CancellationRating
7.8
8,594 reviews
Search Delta flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Kent
Redmond
Lakewood
Federal Way
Fife
Tukwila
Puyallup
Lynnwood
Cle Elum
Marysville
Lacey
Centralia
Kirkland
Shoreline

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Montreal to Seattle. momondo saves you time and could save you money on your trip.

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

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

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

momondo helps you find the best flight between Montreal and Seattle by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are not ready to book a flight from Montreal to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.

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