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Cheap flights from Seattle to Montreal from $113

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Montreal departing on 5/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
WestJet Logo
7:35 pm - 7:00 am
SEA
-
YUL
8h 25m
1 stop
WestJet Logo
7:15 am - 6:45 pm
YUL
-
SEA
14h 30m
1 stop
$282WestJet
Wed, May 13 - Sun, May 31
WestJet Logo
7:35 pm - 7:00 am
SEA
-
YUL
8h 25m
1 stop
WestJet Logo
8:00 pm - 9:40 am
YUL
-
SEA
16h 40m
1 stop
$283WestJet
Sat, May 23 - Thu, May 28
WestJet Logo
7:35 pm - 7:00 am
SEA
-
YUL
8h 25m
1 stop
WestJet Logo
8:00 pm - 9:40 am
YUL
-
SEA
16h 40m
1 stop
$284WestJet
Fri, May 22 - Wed, May 27
WestJet Logo
7:35 pm - 7:00 am
SEA
-
YUL
8h 25m
1 stop
WestJet Logo
8:00 pm - 9:40 am
YUL
-
SEA
16h 40m
1 stop
$287WestJet
Sat, May 16 - Sat, May 30
WestJet Logo
7:35 pm - 7:00 am
SEA
-
YUL
8h 25m
1 stop
WestJet Logo
8:00 pm - 9:40 am
YUL
-
SEA
16h 40m
1 stop
$290WestJet
Thu, May 14 - Tue, Jun 2
WestJet Logo
7:35 pm - 7:00 am
SEA
-
YUL
8h 25m
1 stop
WestJet Logo
8:00 pm - 9:40 am
YUL
-
SEA
16h 40m
1 stop
$291WestJet
Fri, May 22 - Thu, May 28
WestJet Logo
7:35 pm - 7:00 am
SEA
-
YUL
8h 25m
1 stop
WestJet Logo
8:00 pm - 9:40 am
YUL
-
SEA
16h 40m
1 stop
$296WestJet
Fri, May 22 - Wed, May 27
WestJet Logo
7:35 pm - 7:00 am
SEA
-
YUL
8h 25m
1 stop
WestJet Logo
8:00 pm - 9:40 am
YUL
-
SEA
16h 40m
1 stop
$297WestJet
Fri, May 29 - Mon, Jun 1
WestJet Logo
7:35 pm - 7:00 am
SEA
-
YUL
8h 25m
1 stop
WestJet Logo
7:25 pm - 9:40 am
YUL
-
SEA
17h 15m
2 stops
$299WestJet
Fri, May 8 - Sat, May 16
WestJet Logo
7:35 pm - 7:00 am
SEA
-
YUL
8h 25m
1 stop
WestJet Logo
8:00 pm - 9:40 am
YUL
-
SEA
16h 40m
1 stop
$311WestJet
Fri, May 15 - Sat, May 30

WestJet flights from Seattle to Montreal Pierre Elliott Trudeau Intl Airport

Our best WestJet deals on Seattle to Montreal Pierre Elliott Trudeau Intl Airport flight tickets
WestJet
May 23
SEA7:35 pmSeattle/Tacoma Intl
8h 25m
1 stop
YUL7:00 amMontreal Pierre Elliott Trudeau Intl
May 28
YUL8:00 pmMontreal Pierre Elliott Trudeau Intl
16h 40m
1 stop
SEA9:40 amSeattle/Tacoma Intl
$283
WestJet
May 22
SEA7:35 pmSeattle/Tacoma Intl
8h 25m
1 stop
YUL7:00 amMontreal Pierre Elliott Trudeau Intl
May 27
YUL8:00 pmMontreal Pierre Elliott Trudeau Intl
16h 40m
1 stop
SEA9:40 amSeattle/Tacoma Intl
$284
WestJet
May 29
SEA7:35 pmSeattle/Tacoma Intl
8h 25m
1 stop
YUL7:00 amMontreal Pierre Elliott Trudeau Intl
Jun 1
YUL8:00 pmMontreal Pierre Elliott Trudeau Intl
16h 40m
1 stop
SEA9:40 amSeattle/Tacoma Intl
$290

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

Our best Air Canada deals on Seattle to Montreal Pierre Elliott Trudeau Intl Airport flight tickets
Air Canada
Feb 16
SEA9:55 amSeattle/Tacoma Intl
8h 05m
1 stop
YUL9:00 pmMontreal Pierre Elliott Trudeau Intl
Feb 22
YUL8:00 amMontreal Pierre Elliott Trudeau Intl
17h 16m
1 stop
SEA10:16 pmSeattle/Tacoma Intl
$560
Air Canada
Feb 16
SEA5:45 amSeattle/Tacoma Intl
10h 29m
2 stops
YUL7:14 pmMontreal Pierre Elliott Trudeau Intl
Feb 22
YUL3:10 pmMontreal Pierre Elliott Trudeau Intl
10h 06m
1 stop
SEA10:16 pmSeattle/Tacoma Intl
$693
Air Canada
Feb 16
SEA5:45 amSeattle/Tacoma Intl
10h 29m
2 stops
YUL7:14 pmMontreal Pierre Elliott Trudeau Intl
Feb 22
YUL3:10 pmMontreal Pierre Elliott Trudeau Intl
10h 06m
1 stop
SEA10:16 pmSeattle/Tacoma Intl
$712

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Montreal Pierre Elliott Trudeau Intl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated February 3, 2026.
Use the filters below to find and compare flights from Seattle to Montreal Pierre Elliott Trudeau Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Wed 5/13

7:35 pm-7:00 am

1 stop8h 25m

Montreal Pierre Elliott Trudeau Intl

Sun 5/31

7:15 am-6:45 pm

1 stop14h 30m

$282

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Sat 5/23

7:35 pm-7:00 am

1 stop8h 25m

Montreal Pierre Elliott Trudeau Intl

Thu 5/28

8:00 pm-9:40 am

1 stop16h 40m

$283

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Fri 5/22

7:35 pm-7:00 am

1 stop8h 25m

Montreal Pierre Elliott Trudeau Intl

Wed 5/27

8:00 pm-9:40 am

1 stop16h 40m

$284

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Sat 5/16

7:35 pm-7:00 am

1 stop8h 25m

Montreal Pierre Elliott Trudeau Intl

Sat 5/30

8:00 pm-9:40 am

1 stop16h 40m

$287

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Thu 5/14

7:35 pm-7:00 am

1 stop8h 25m

Montreal Pierre Elliott Trudeau Intl

Tue 6/2

8:00 pm-9:40 am

1 stop16h 40m

$290

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Fri 5/22

7:35 pm-7:00 am

1 stop8h 25m

Montreal Pierre Elliott Trudeau Intl

Thu 5/28

8:00 pm-9:40 am

1 stop16h 40m

$291

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Fri 5/22

7:35 pm-7:00 am

1 stop8h 25m

Montreal Pierre Elliott Trudeau Intl

Wed 5/27

8:00 pm-9:40 am

1 stop16h 40m

$296

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Fri 5/29

7:35 pm-7:00 am

1 stop8h 25m

Montreal Pierre Elliott Trudeau Intl

Mon 6/1

8:00 pm-9:40 am

1 stop16h 40m

$297

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Fri 5/8

7:35 pm-7:00 am

1 stop8h 25m

Montreal Pierre Elliott Trudeau Intl

Sat 5/16

7:25 pm-9:40 am

2 stops17h 15m

$299

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Fri 5/15

7:35 pm-7:00 am

1 stop8h 25m

Montreal Pierre Elliott Trudeau Intl

Sat 5/30

8:00 pm-9:40 am

1 stop16h 40m

$311

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 Pierre Elliott Trudeau Intl Airport

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 Montreal Pierre Elliott Trudeau Intl Airport?

The month of June is another great option to travel to Montreal Pierre Elliott Trudeau Intl Airport, with average flight prices from Seattle averaging around $468.

What is the cheapest day to depart on your flight to Montreal Pierre Elliott Trudeau Intl Airport?

The cheapest day to depart from Seattle to Montreal Pierre Elliott Trudeau Intl Airport is on a Monday. Travelers who choose to depart for Montreal Pierre Elliott Trudeau Intl Airport on a Monday will often find tickets for as low as $639. Flights from Seattle to Montreal Pierre Elliott Trudeau Intl Airport on a Friday will generally be more expensive and average around $827. 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 Pierre Elliott Trudeau Intl flight route?

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

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

You are more likely to see cheaper flights to Montreal Pierre Elliott Trudeau Intl Airport from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Montreal Pierre Elliott Trudeau Intl Airport for around $594 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Montreal Pierre Elliott Trudeau Intl Airport from Seattle for as low as $352 on momondo.

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

There are 4 cabin classes available to choose from on Seattle/Tacoma Intl to Montreal Pierre Elliott Trudeau Intl 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 Pierre Elliott Trudeau Intl Airport flights?

You could potentially save up to 41% on your flight if you consider stops on a Seattle to Montreal Pierre Elliott Trudeau Intl Airport flight.

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

As of February 2026, prices for Seattle to Montreal Pierre Elliott Trudeau Intl Airport flights are approximately 58% more expensive when compared to flights at the same time last year.

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

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

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

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

Best Price Found

$270

Fastest flight time

5h 07m

Direct flights

Every day
The best one-way flight to Montreal Pierre Elliott Trudeau Intl Airport from Seattle in the past 72 hours is $270. The best round-trip flight deal from Seattle to Montreal Pierre Elliott Trudeau Intl Airport found on momondo in the last 72 hours is $643.
The fastest flight from Seattle to Montreal Pierre Elliott Trudeau Intl Airport takes 5h 07m
Direct flights go from Seattle to Montreal Pierre Elliott Trudeau Intl Airport every day.
Search flight deals

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

    The distance between Seattle/Tacoma Intl and Montreal Pierre Elliott Trudeau Intl is about 2274.5 mi. Typically, this will take 5h 07m by plane in normal conditions.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, 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 Pierre Elliott Trudeau Intl Airport.

  • What documentation or ID do you need to fly to Montreal Pierre Elliott Trudeau Intl Airport?

    The travel and health documents you'll need for your trip to Montreal Pierre Elliott Trudeau 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 Montreal Pierre Elliott Trudeau 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 Seattle to Montreal Pierre Elliott Trudeau Intl Airport?

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

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

Compare and see reviews for airlines that fly from Seattle to Montreal Pierre Elliott Trudeau Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
WestJetPriceFrom $161Free CancellationRating
7.2
3,255 reviews
Search WestJet flights
United AirlinesPriceFrom $199Free CancellationRating
7.4
9,236 reviews
Search United Airlines flights
Air CanadaPriceFrom $254Free CancellationRating
7.1
10,684 reviews
Search Air Canada flights
DeltaPriceFrom $348Free CancellationRating
7.9
8,138 reviews
Search Delta flights

Traveling to a place near Montreal?

Book flights to Montreal if you plan to visit one of these locations
Laval
Dorval
Brossard
Longueuil
Trois-Rivières
Cornwall
Magog
Boucherville
Sherbrooke
Drummondville
Montebello
Saint-Jean-sur-Richelieu
Bromont
Saint-Sauveur
North Hatley
Sutton

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Montreal for you.

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

Yes. All flights to Montreal from Seattle on momondo can be compared and filtered by various policies on offer, including flexible booking.

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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