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Cheap flights from Montreal to Seattle from $246

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Montreal to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
7:00 am - 2:39 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
10h 39m1 stop Atlanta Hartsfield-Jackson
Delta Logo
11:55 am - 11:26 pmSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
8h 31m1 stop Detroit Metropolitan Wayne County
$433Delta
Fri, Jan 8 - Sat, Jan 16
Delta Logo
6:00 am - 2:40 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
11h 40m1 stop Detroit Metropolitan Wayne County
Delta Logo
12:00 pm - 11:44 pmSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
8h 44m1 stop Minneapolis St Paul
$433Delta
Fri, Jan 8 - Sat, Jan 16
Delta Logo
6:00 am - 11:10 amYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
8h 10m1 stop Detroit Metropolitan Wayne County
Delta Logo
9:50 am - 11:33 pmSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
10h 43m1 stop Detroit Metropolitan Wayne County
$433Delta
Thu, Dec 3 - Wed, Dec 9
American Airlines Logo
12:08 pm - 8:31 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
11h 23m1 stop Chicago O'Hare Intl
American Airlines Logo
9:15 am - 10:48 pmSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
10h 33m1 stop Philadelphia
$434American Airlines
Thu, Dec 3 - Wed, Dec 9
American Airlines Logo
12:08 pm - 8:31 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
11h 23m1 stop Chicago O'Hare Intl
American Airlines Logo
9:15 am - 10:48 pmSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
10h 33m1 stop Philadelphia
$435American Airlines
Thu, Dec 3 - Wed, Dec 9
American Airlines Logo
2:24 pm - 11:09 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
11h 45m1 stop Charlotte Douglas
American Airlines Logo
9:15 am - 10:48 pmSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
10h 33m1 stop Philadelphia
$436American Airlines
Thu, Dec 3 - Wed, Dec 9
Air Canada Logo
1:05 pm - 9:57 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
11h 52m2 stops Edmonton Vancouver Intl
Air Canada Logo
8:40 am - 11:34 pmSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
11h 54m2 stops Vancouver Intl Calgary
$450Air Canada
Thu, Dec 3 - Wed, Dec 9
Air Canada Logo
1:05 pm - 9:57 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
11h 52m2 stops Edmonton Vancouver Intl
Air Canada Logo
3:15 pm - 7:10 amSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
12h 55m2 stops Vancouver Intl Calgary
$450Air Canada
Thu, Dec 3 - Wed, Dec 9
WestJet Logo
6:45 am - 1:40 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
33h 55m2 stops Toronto Pearson Intl Calgary
WestJet Logo
2:30 pm - 4:50 pmSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
23h 20m1 stop Calgary
$472WestJet
Thu, Dec 3 - Wed, Dec 9
WestJet Logo
6:45 am - 1:40 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
33h 55m2 stops Toronto Pearson Intl Calgary
WestJet Logo
2:30 pm - 2:50 pmSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
21h 20m1 stop Calgary
$475WestJet
Thu, Dec 3 - Wed, Dec 9

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Delta flights from Montreal to Seattle

Our best Delta deals on Montreal to Seattle flight tickets
Delta
Jan 8
YUL7:00 amMontreal Pierre Elliott Trudeau Intl
10h 39m
1 stop
SEA2:39 pmSeattle/Tacoma Intl
Jan 16
SEA11:55 amSeattle/Tacoma Intl
8h 31m
1 stop
YUL11:26 pmMontreal Pierre Elliott Trudeau Intl
$433
Delta
Dec 3
YUL6:00 amMontreal Pierre Elliott Trudeau Intl
8h 10m
1 stop
SEA11:10 amSeattle/Tacoma Intl
Dec 9
SEA8:30 amSeattle/Tacoma Intl
12h 18m
1 stop
YUL11:48 pmMontreal Pierre Elliott Trudeau Intl
$448
Delta
Apr 24
YUL6:00 amMontreal Pierre Elliott Trudeau Intl
11h 23m
1 stop
SEA2:23 pmSeattle/Tacoma Intl
May 3
SEA11:35 pmSeattle/Tacoma Intl
9h 09m
1 stop
YUL11:44 amMontreal Pierre Elliott Trudeau Intl
$452

American Airlines flights from Montreal to Seattle

Our best American Airlines deals on Montreal to Seattle flight tickets
American Airlines
Dec 3
YUL12:08 pmMontreal Pierre Elliott Trudeau Intl
11h 23m
1 stop
SEA8:31 pmSeattle/Tacoma Intl
Dec 9
SEA9:15 amSeattle/Tacoma Intl
10h 33m
1 stop
YUL10:48 pmMontreal Pierre Elliott Trudeau Intl
$434
American Airlines
Dec 3
YUL12:08 pmMontreal Pierre Elliott Trudeau Intl
11h 23m
1 stop
SEA8:31 pmSeattle/Tacoma Intl
Dec 9
SEA9:15 amSeattle/Tacoma Intl
10h 33m
1 stop
YUL10:48 pmMontreal Pierre Elliott Trudeau Intl
$435
American Airlines
Dec 3
YUL2:24 pmMontreal Pierre Elliott Trudeau Intl
11h 45m
1 stop
SEA11:09 pmSeattle/Tacoma Intl
Dec 9
SEA9:15 amSeattle/Tacoma Intl
10h 33m
1 stop
YUL10:48 pmMontreal Pierre Elliott Trudeau Intl
$436

momondo Fare Finder

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

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Route

Depart

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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 1/8

7:00 am-2:39 pm

1 stop10h 39m

Seattle/Tacoma Intl

Sat 1/16

11:55 am-11:26 pm

1 stop8h 31m

$433

MontrealSeattle

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

YULSEA

Montreal Pierre Elliott Trudeau Intl

Fri 1/8

6:00 am-2:40 pm

1 stop11h 40m

Seattle/Tacoma Intl

Sat 1/16

12:00 pm-11:44 pm

1 stop8h 44m

$433
Quickest round-trip

MontrealSeattle

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

YULSEA

Montreal Pierre Elliott Trudeau Intl

Thu 12/3

6:00 am-11:10 am

1 stop8h 10m

Seattle/Tacoma Intl

Wed 12/9

9:50 am-11:33 pm

1 stop10h 43m

$433

MontrealSeattle

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

YULSEA

Montreal Pierre Elliott Trudeau Intl

Thu 12/3

12:08 pm-8:31 pm

1 stop11h 23m

Seattle/Tacoma Intl

Wed 12/9

9:15 am-10:48 pm

1 stop10h 33m

$434

MontrealSeattle

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

YULSEA

Montreal Pierre Elliott Trudeau Intl

Thu 12/3

12:08 pm-8:31 pm

1 stop11h 23m

Seattle/Tacoma Intl

Wed 12/9

9:15 am-10:48 pm

1 stop10h 33m

$435

MontrealSeattle

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

YULSEA

Montreal Pierre Elliott Trudeau Intl

Thu 12/3

2:24 pm-11:09 pm

1 stop11h 45m

Seattle/Tacoma Intl

Wed 12/9

9:15 am-10:48 pm

1 stop10h 33m

$436

MontrealSeattle

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

YULSEA

Montreal Pierre Elliott Trudeau Intl

Thu 12/3

1:05 pm-9:57 pm

2 stops11h 52m

Seattle/Tacoma Intl

Wed 12/9

8:40 am-11:34 pm

2 stops11h 54m

$450

MontrealSeattle

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

YULSEA

Montreal Pierre Elliott Trudeau Intl

Thu 12/3

1:05 pm-9:57 pm

2 stops11h 52m

Seattle/Tacoma Intl

Wed 12/9

3:15 pm-7:10 am

2 stops12h 55m

$450

MontrealSeattle

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

YULSEA

Montreal Pierre Elliott Trudeau Intl

Thu 12/3

6:45 am-1:40 pm

2 stops33h 55m

Seattle/Tacoma Intl

Wed 12/9

2:30 pm-4:50 pm

1 stop23h 20m

$472

MontrealSeattle

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

YULSEA

Montreal Pierre Elliott Trudeau Intl

Thu 12/3

6:45 am-1:40 pm

2 stops33h 55m

Seattle/Tacoma Intl

Wed 12/9

2:30 pm-2:50 pm

1 stop21h 20m

$475

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 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 cheapest month to fly to Seattle?

In general, October is the cheapest month to fly from Montreal to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $437. If you don’t want to visit Seattle in October, then you should wait until September to fly from Montreal, when ticket prices are also cheap, with an average price of $439.

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

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

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

You are more likely to see cheaper flights to Seattle from Montreal when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $506 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Montreal for as low as $304 on momondo.

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

There is only 1 cabin class available to choose from on Montreal 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 to Seattle flights?

You could potentially save up to 7% on your flight if you consider stops on a Montreal to Seattle flight.

How have Montreal to Seattle flight prices changed over time?

As of November 2026, prices for Montreal to Seattle flights are approximately 1% cheaper when compared to flights at the same time last year.

When to book flights from Montreal to Seattle

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

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

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

Best Price Found

$246

Fastest flight time

8h 10m

Direct flights

None
The best one-way flight to Seattle from Montreal in the past 72 hours is $246. The best round-trip flight deal from Montreal to Seattle found on momondo in the last 72 hours is $433.
The fastest flight from Montreal to Seattle takes 8h 10m
There are no direct flights from Montreal to Seattle. There are no popular flight routes from Montreal to Seattle.
Search flight deals

Frequently asked questions about flying from Montreal to Seattle

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

    Montreal and Seattle/Tacoma Intl are 2282.0 mi apart from one another. Typically, this will take 8h 10m by plane in normal conditions.

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

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

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

  • How old do you have to be to fly from Montreal 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 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 to Seattle?

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

Best airlines flying from Montreal to Seattle

Compare and see reviews for airlines that fly from Montreal to Seattle with momondo
Airline
Rating
Free Cancellation
Price
WestJetPriceFrom $226Free CancellationRating
7.2
3,441 reviews
Search WestJet flights
Air CanadaPriceFrom $388Free CancellationRating
7.1
11,850 reviews
Search Air Canada flights
DeltaPriceFrom $388Free CancellationRating
7.8
8,696 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
Kent
Olympia
Federal Way
Redmond
Lakewood
Lynnwood
Fife
Puyallup
Tukwila
Cle Elum
Marysville
Lacey
Kirkland
Centralia
Shoreline

Why use momondo?

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

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 Seattle from Montreal.

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

Yes. momondo enables you to select and highlight flights to Seattle from Montreal with this policy.

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

Once all potential Montreal to Seattle flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Montreal to Seattle 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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