Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Montreal to Seattle from $198

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.
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
$290WestJet
Thu, Oct 15 - Wed, Oct 21
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
$293WestJet
Thu, Oct 15 - Fri, Oct 23
WestJet Logo
7:15 am - 6:45 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
14h 30m1 stop Calgary
WestJet Logo
7:35 pm - 7:05 amSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
8h 30m1 stop Calgary
$313WestJet
Tue, Oct 13 - Mon, Oct 19
Delta Logo
12:50 pm - 10:05 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
12h 15m1 stop Detroit Metropolitan Wayne County
Delta Logo
10:35 pm - 1:39 pmSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
12h 04m1 stop Atlanta Hartsfield-Jackson
$333Delta
Thu, Oct 15 - Fri, Oct 23
Delta Logo
12:44 pm - 11:52 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
14h 08m1 stop Atlanta Hartsfield-Jackson
Delta Logo
11:45 am - 11:54 pmSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
9h 09m1 stop Atlanta Hartsfield-Jackson
$333Delta
Thu, Oct 15 - Wed, Oct 21
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
11:39 pm - 11:28 amSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
8h 49m1 stop Chicago O'Hare Intl
$336American Airlines
Thu, Dec 10 - Mon, Dec 14
Delta Logo
12:50 pm - 10:05 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
12h 15m1 stop Detroit Metropolitan Wayne County
Delta Logo
11:10 pm - 11:57 amSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
9h 47m1 stop Detroit Metropolitan Wayne County
$336Delta
Tue, Nov 3 - Sat, Nov 7
American Airlines Logo
12:10 pm - 8:20 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
11h 10m1 stop Chicago O'Hare Intl
American Airlines Logo
9:15 am - 9:26 pmSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
9h 11m1 stop Philadelphia
$340American Airlines
Thu, Nov 5 - Sat, Nov 7
Air Canada Logo
6:00 pm - 10:47 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
7h 47m1 stop Vancouver Intl
Air Canada Logo
8:40 am - 7:35 pmSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
7h 55m1 stop Vancouver Intl
$429Air Canada
Sat, Oct 24 - Fri, Oct 30
Air Canada Logo
6:00 pm - 10:47 pmYUL  Montreal Pierre Elliott Trudeau Intl-SEA Seattle/Tacoma Intl
7h 47m1 stop Vancouver Intl
Air Canada Logo
7:15 pm - 7:45 amSEA  Seattle/Tacoma Intl-YUL Montreal Pierre Elliott Trudeau Intl
9h 30m2 stops Vancouver Intl Toronto Pearson Intl
$456Air Canada
Wed, Oct 14 - Wed, Oct 21

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

WestJet flights from Montreal to Seattle

Our best WestJet deals on Montreal to Seattle flight tickets
WestJet
Oct 15
YUL6:45 amMontreal Pierre Elliott Trudeau Intl
15h 00m
2 stops
SEA6:45 pmSeattle/Tacoma Intl
Oct 21
SEA7:35 pmSeattle/Tacoma Intl
8h 30m
1 stop
YUL7:05 amMontreal Pierre Elliott Trudeau Intl
$290
WestJet
Oct 15
YUL6:45 amMontreal Pierre Elliott Trudeau Intl
15h 00m
2 stops
SEA6:45 pmSeattle/Tacoma Intl
Oct 23
SEA7:35 pmSeattle/Tacoma Intl
8h 30m
1 stop
YUL7:05 amMontreal Pierre Elliott Trudeau Intl
$293
WestJet
Oct 13
YUL7:15 amMontreal Pierre Elliott Trudeau Intl
14h 30m
1 stop
SEA6:45 pmSeattle/Tacoma Intl
Oct 19
SEA7:35 pmSeattle/Tacoma Intl
8h 30m
1 stop
YUL7:05 amMontreal Pierre Elliott Trudeau Intl
$313

Delta flights from Montreal to Seattle

Our best Delta deals on Montreal to Seattle flight tickets
Delta
Oct 15
YUL12:50 pmMontreal Pierre Elliott Trudeau Intl
12h 15m
1 stop
SEA10:05 pmSeattle/Tacoma Intl
Oct 23
SEA10:35 pmSeattle/Tacoma Intl
12h 04m
1 stop
YUL1:39 pmMontreal Pierre Elliott Trudeau Intl
$333
Delta
Nov 3
YUL12:50 pmMontreal Pierre Elliott Trudeau Intl
12h 15m
1 stop
SEA10:05 pmSeattle/Tacoma Intl
Nov 7
SEA11:10 pmSeattle/Tacoma Intl
9h 47m
1 stop
YUL11:57 amMontreal Pierre Elliott Trudeau Intl
$336
Delta
Oct 29
YUL6:00 amMontreal Pierre Elliott Trudeau Intl
8h 00m
1 stop
SEA11:00 amSeattle/Tacoma Intl
Nov 5
SEA11:25 amSeattle/Tacoma Intl
9h 00m
1 stop
YUL11:25 pmMontreal Pierre Elliott Trudeau Intl
$338

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealSeattle

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

YULSEA

Montreal Pierre Elliott Trudeau Intl

Thu 10/15

6:45 am-6:45 pm

2 stops15h 00m

Seattle/Tacoma Intl

Wed 10/21

7:35 pm-7:05 am

1 stop8h 30m

$290

MontrealSeattle

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

YULSEA

Montreal Pierre Elliott Trudeau Intl

Thu 10/15

6:45 am-6:45 pm

2 stops15h 00m

Seattle/Tacoma Intl

Fri 10/23

7:35 pm-7:05 am

1 stop8h 30m

$293

MontrealSeattle

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

YULSEA

Montreal Pierre Elliott Trudeau Intl

Tue 10/13

7:15 am-6:45 pm

1 stop14h 30m

Seattle/Tacoma Intl

Mon 10/19

7:35 pm-7:05 am

1 stop8h 30m

$313

MontrealSeattle

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

YULSEA

Montreal Pierre Elliott Trudeau Intl

Thu 10/15

12:50 pm-10:05 pm

1 stop12h 15m

Seattle/Tacoma Intl

Fri 10/23

10:35 pm-1:39 pm

1 stop12h 04m

$333

MontrealSeattle

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

YULSEA

Montreal Pierre Elliott Trudeau Intl

Thu 10/15

12:44 pm-11:52 pm

1 stop14h 08m

Seattle/Tacoma Intl

Wed 10/21

11:45 am-11:54 pm

1 stop9h 09m

$333

MontrealSeattle

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

YULSEA

Montreal Pierre Elliott Trudeau Intl

Thu 12/10

12:08 pm-8:31 pm

1 stop11h 23m

Seattle/Tacoma Intl

Mon 12/14

11:39 pm-11:28 am

1 stop8h 49m

$336

MontrealSeattle

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

YULSEA

Montreal Pierre Elliott Trudeau Intl

Tue 11/3

12:50 pm-10:05 pm

1 stop12h 15m

Seattle/Tacoma Intl

Sat 11/7

11:10 pm-11:57 am

1 stop9h 47m

$336

MontrealSeattle

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

YULSEA

Montreal Pierre Elliott Trudeau Intl

Thu 11/5

12:10 pm-8:20 pm

1 stop11h 10m

Seattle/Tacoma Intl

Sat 11/7

9:15 am-9:26 pm

1 stop9h 11m

$340
Quickest round-trip

MontrealSeattle

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

YULSEA

Montreal Pierre Elliott Trudeau Intl

Sat 10/24

6:00 pm-10:47 pm

1 stop7h 47m

Seattle/Tacoma Intl

Fri 10/30

8:40 am-7:35 pm

1 stop7h 55m

$429

MontrealSeattle

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

YULSEA

Montreal Pierre Elliott Trudeau Intl

Wed 10/14

6:00 pm-10:47 pm

1 stop7h 47m

Seattle/Tacoma Intl

Wed 10/21

7:15 pm-7:45 am

2 stops9h 30m

$456

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 typical price of a round-trip flight between Montreal and Seattle?

Prices are currently low for flights on this route.

Typical prices usually range from $371 to $560.
The lowest price recently found on this route was $290.

What is the cheapest month to fly to Seattle?

In general, September 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 $439. If you don’t want to visit Seattle in September, then you should wait until March to fly from Montreal, when ticket prices are also cheap, with an average price of $457.

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 $496 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 October 2026, prices for Montreal to Seattle flights are approximately 22% 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

$198

Fastest flight time

7h 55m

Direct flights

None
The best one-way flight to Seattle from Montreal in the past 72 hours is $198. The best round-trip flight deal from Montreal to Seattle found on momondo in the last 72 hours is $290.
The fastest flight from Montreal to Seattle takes 7h 55m
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 7h 55m 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
3,450 reviews
Search WestJet flights
Air CanadaPriceFrom $388Free CancellationRating
7.1
11,712 reviews
Search Air Canada flights
DeltaPriceFrom $388Free CancellationRating
7.8
8,624 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
Redmond
Olympia
Lakewood
Federal Way
Puyallup
Fife
Lynnwood
Tukwila
Cle Elum
Marysville
Lacey
Centralia
Kirkland
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.

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 11/1
Sun 11/8
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States