Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Seattle to Montreal from $121

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 4/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

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

Find the cheapest flights from Seattle to Montreal

Cheap round-trip flights

Enter your travel dates to find the best prices.
WestJet Logo
3:10 pm - 7:05 am
SEA
-
YUL
12h 55m
1 stop
WestJet Logo
7:30 pm - 2:19 pm
YUL
-
SEA
21h 49m
1 stop
$299WestJet
Mon, Mar 2 - Mon, Mar 16
Multiple Airlines Logo
11:10 pm - 4:27 pm
SEA
-
YUL
14h 17m
1 stop
Multiple Airlines Logo
6:45 am - 1:08 pm
YUL
-
SEA
9h 23m
1 stop
$303Multiple Airlines
Mon, Apr 20 - Mon, Apr 27
WestJet Logo
3:10 pm - 7:05 am
SEA
-
YUL
12h 55m
1 stop
WestJet Logo
6:45 am - 2:19 pm
YUL
-
SEA
34h 34m
2 stops
$305WestJet
Mon, Mar 2 - Tue, Mar 17
Multiple Airlines Logo
11:12 pm - 4:27 pm
SEA
-
YUL
14h 15m
1 stop
Multiple Airlines Logo
6:45 am - 1:08 pm
YUL
-
SEA
9h 23m
1 stop
$307Multiple Airlines
Sat, Apr 25 - Tue, Apr 28
Multiple Airlines Logo
7:33 pm - 7:05 am
SEA
-
YUL
32h 32m
2 stops
Multiple Airlines Logo
6:45 am - 7:18 pm
YUL
-
SEA
15h 33m
1 stop
$308Multiple Airlines
Tue, Mar 3 - Tue, Mar 17
Multiple Airlines Logo
8:05 am - 12:38 am
SEA
-
YUL
13h 33m
1 stop
Multiple Airlines Logo
6:45 am - 1:08 pm
YUL
-
SEA
9h 23m
1 stop
$309Multiple Airlines
Tue, Apr 21 - Tue, Apr 28
Multiple Airlines Logo
7:55 am - 12:38 am
SEA
-
YUL
13h 43m
1 stop
Multiple Airlines Logo
6:45 am - 2:19 pm
YUL
-
SEA
34h 34m
2 stops
$318Multiple Airlines
Mon, Feb 23 - Thu, Mar 5
Multiple Airlines Logo
7:55 am - 12:38 am
SEA
-
YUL
13h 43m
1 stop
Multiple Airlines Logo
6:45 am - 2:19 pm
YUL
-
SEA
34h 34m
2 stops
$319Multiple Airlines
Sat, Feb 28 - Thu, Mar 5
Multiple Airlines Logo
8:10 am - 12:38 am
SEA
-
YUL
13h 28m
1 stop
Multiple Airlines Logo
4:10 pm - 9:51 pm
YUL
-
SEA
8h 41m
1 stop
$321Multiple Airlines
Thu, Mar 26 - Sun, Mar 29
Multiple Airlines Logo
6:30 pm - 7:05 am
SEA
-
YUL
33h 35m
2 stops
Multiple Airlines Logo
6:45 am - 7:18 pm
YUL
-
SEA
15h 33m
1 stop
$322Multiple Airlines
Tue, Feb 24 - Thu, Mar 5

Air Canada flights from Seattle to Montreal

Our best Air Canada deals on Seattle to Montreal flight tickets
Air Canada
Feb 2
SEA3:40 pmSeattle/Tacoma Intl
12h 30m
2 stops
YUL7:10 amMontreal Pierre Elliott Trudeau Intl
Feb 10
YUL8:10 amMontreal Pierre Elliott Trudeau Intl
9h 21m
2 stops
SEA2:31 pmSeattle/Tacoma Intl
$365
Air Canada
Feb 22
SEA5:50 amSeattle/Tacoma Intl
8h 10m
1 stop
YUL5:00 pmMontreal Pierre Elliott Trudeau Intl
Mar 3
YUL3:35 pmMontreal Pierre Elliott Trudeau Intl
10h 22m
2 stops
SEA10:57 pmSeattle/Tacoma Intl
$366
Air Canada
Feb 22
SEA3:40 pmSeattle/Tacoma Intl
12h 30m
2 stops
YUL7:10 amMontreal Pierre Elliott Trudeau Intl
Mar 3
YUL3:35 pmMontreal Pierre Elliott Trudeau Intl
10h 22m
2 stops
SEA10:57 pmSeattle/Tacoma Intl
$368

WestJet flights from Seattle to Montreal

Our best WestJet deals on Seattle to Montreal flight tickets
WestJet
Mar 2
SEA3:10 pmSeattle/Tacoma Intl
12h 55m
1 stop
YUL7:05 amMontreal Pierre Elliott Trudeau Intl
Mar 16
YUL7:30 pmMontreal Pierre Elliott Trudeau Intl
21h 49m
1 stop
SEA2:19 pmSeattle/Tacoma Intl
$299
WestJet
Mar 2
SEA3:10 pmSeattle/Tacoma Intl
12h 55m
1 stop
YUL7:05 amMontreal Pierre Elliott Trudeau Intl
Mar 17
YUL6:45 amMontreal Pierre Elliott Trudeau Intl
34h 34m
2 stops
SEA2:19 pmSeattle/Tacoma Intl
$305
WestJet
Feb 2
SEA3:10 pmSeattle/Tacoma Intl
30h 28m
2 stops
YUL12:38 amMontreal Pierre Elliott Trudeau Intl
Feb 10
YUL6:45 amMontreal Pierre Elliott Trudeau Intl
34h 34m
2 stops
SEA2:19 pmSeattle/Tacoma Intl
$329

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Montreal 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 January 15, 2026.
Use the filters below to find and compare flights from Seattle to Montreal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Mon 3/2

3:10 pm-7:05 am

1 stop12h 55m

Montreal Pierre Elliott Trudeau Intl

Mon 3/16

7:30 pm-2:19 pm

1 stop21h 49m

$299

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Mon 4/20

11:10 pm-4:27 pm

1 stop14h 17m

Montreal Pierre Elliott Trudeau Intl

Mon 4/27

6:45 am-1:08 pm

1 stop9h 23m

$303

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Mon 3/2

3:10 pm-7:05 am

1 stop12h 55m

Montreal Pierre Elliott Trudeau Intl

Tue 3/17

6:45 am-2:19 pm

2 stops34h 34m

$305

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Sat 4/25

11:12 pm-4:27 pm

1 stop14h 15m

Montreal Pierre Elliott Trudeau Intl

Tue 4/28

6:45 am-1:08 pm

1 stop9h 23m

$307

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Tue 3/3

7:33 pm-7:05 am

2 stops32h 32m

Montreal Pierre Elliott Trudeau Intl

Tue 3/17

6:45 am-7:18 pm

1 stop15h 33m

$308

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Tue 4/21

8:05 am-12:38 am

1 stop13h 33m

Montreal Pierre Elliott Trudeau Intl

Tue 4/28

6:45 am-1:08 pm

1 stop9h 23m

$309

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Mon 2/23

7:55 am-12:38 am

1 stop13h 43m

Montreal Pierre Elliott Trudeau Intl

Thu 3/5

6:45 am-2:19 pm

2 stops34h 34m

$318

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Sat 2/28

7:55 am-12:38 am

1 stop13h 43m

Montreal Pierre Elliott Trudeau Intl

Thu 3/5

6:45 am-2:19 pm

2 stops34h 34m

$319

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Thu 3/26

8:10 am-12:38 am

1 stop13h 28m

Montreal Pierre Elliott Trudeau Intl

Sun 3/29

4:10 pm-9:51 pm

1 stop8h 41m

$321

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Tue 2/24

6:30 pm-7:05 am

2 stops33h 35m

Montreal Pierre Elliott Trudeau Intl

Thu 3/5

6:45 am-7:18 pm

1 stop15h 33m

$322

Flights are sorted by cheapest round-trip flights first.

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

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?

What is the cheapest month to fly to Montreal?

The cheapest month to fly to Montreal from Seattle is in September. Flight prices, which tend to average around $482, are often lower during this time because this is during the off-season. If you are unable to visit Montreal during the month of September, then departing from Seattle during the month August is also very affordable. Most momondo users find prices during this month for around $492.

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

The cheapest day to depart from Seattle to Montreal is on a Monday when prices can be found for as low as $658. Flights from Seattle to Montreal on a Friday will generally be more expensive and average around $820. 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 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 $602 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 $352 on momondo.

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

There are 4 cabin classes available to choose from on Seattle/Tacoma Intl 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 41% 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 January 2026, prices for Seattle to Montreal flights are approximately 8% more expensive 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

$711

Fastest flight time

5h 07m

Direct flights

Mon, Tue, Wed, Fri, Sat and Sun

Airports in Montreal

2 airports
The best flight deal from Seattle to Montreal found on momondo in the last 72 hours is $711
The fastest flight from Seattle to Montreal takes 5h 07m
Direct flights go from Seattle to Montreal on Monday, Tuesday, Wednesday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
There are 2 airports in Montreal. From Seattle there are direct flights to Montreal Pierre Elliott Trudeau Intl (YUL).
Search flight deals

  • 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 5h 07m 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 $161Free CancellationRating
7.2
3,242 reviews
Search WestJet flights
United AirlinesPriceFrom $199Free CancellationRating
7.4
9,163 reviews
Search United Airlines flights
Air CanadaPriceFrom $254Free CancellationRating
7.1
10,622 reviews
Search Air Canada flights
DeltaPriceFrom $348Free CancellationRating
7.9
8,049 reviews
Search Delta flights
American AirlinesPriceFrom $493Free CancellationRating
7.2
11,131 reviews
Search American Airlines 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.

An easier way to manage your Montreal 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
Sat 2/14
Sat 2/21
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Canada

Fly into one of these airports located in Montreal

Airports listed have a maximum distance of 9.4 mi from Montreal
Montreal St Hubert Airport
Montreal Pierre Elliott Trudeau Intl Airport