What airlines fly to Montreal?

Air Canada, United Airlines and Delta are the top three most popular airlines that fly to Montreal from Seattle according to our data. Air Canada is the first choice among our users, with 71% of people opting to fly with this airline when traveling to Montreal. Keep in mind that there are 5 different airlines that fly to Montreal on a routine basis, so you have a few additional options to choose from.

How many flights depart from Seattle to Montreal on average per week?

As of September 2025, there are 14 flights per week flying from Seattle to Montreal. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.

Which layover airport offers the lowest fares from Seattle to Montreal?

Flights via Toronto (YYZ) offer the lowest average round-trip price of $561.

Which airport is the most popular layover for flights between Seattle and Montreal?

Vancouver (YVR) was the most common stop: 70% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest travel time from Seattle to Montreal?

Flights connecting via Vancouver (YVR) have the shortest average one-way travel time: 7h 44m.

What is the cheapest airline that flies from Seattle/Tacoma Intl to Montreal?

WestJet, Air Canada, and United Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Montreal

How many flights depart from Seattle to Montreal on average per day?

As of September 2025, there are 2 flights per day flying from Seattle to Montreal. The most common time of day flights depart is 7:00AM, with 100% of flights taking off at noon.

Which layover airport has the shortest connection time from Seattle to Montreal?

Philadelphia (PHL) has the shortest average layover time for this route: 1h 12m.

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?

The number of operators available for flights from Seattle/Tacoma Intl Airport to Montreal is 5 as of September 2025.

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.

$102 Cheap Flights from Seattle to Montreal in 2025/26

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Find the cheapest flights from Seattle to Montreal

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

3:28 pm - 8:16 amSEA-YUL

13h 48m1 stop

9:45 am - 3:45 pmYUL-SEA

9h 00m1 stop

$361United Airlines

Find Deal

Thu, Oct 2 - Sat, Oct 25

5:30 am - 7:32 pmSEA-YUL

11h 02m2 stops

7:30 am - 2:16 pmYUL-SEA

9h 46m1 stop

$362Air Canada

Find Deal

Wed, Oct 1 - Sat, Oct 25

7:55 am - 12:43 amSEA-YUL

13h 48m1 stop

4:15 pm - 2:20 pmYUL-SEA

25h 05m1 stop

$363

Find Deal

Mon, Nov 17 - Wed, Nov 19

10:00 am - 8:50 pmSEA-YUL

7h 50m1 stop

3:30 pm - 9:45 pmYUL-SEA

9h 15m1 stop

$364Air Canada

Find Deal

Sat, Oct 4 - Fri, Oct 24

8:40 am - 12:27 amSEA-YUL

12h 47m2 stops

6:45 am - 12:59 pmYUL-SEA

33h 14m2 stops

$366WestJet

Find Deal

Thu, Oct 2 - Fri, Oct 24

7:05 am - 9:29 pmSEA-YUL

11h 24m2 stops

9:45 am - 3:45 pmYUL-SEA

9h 00m1 stop

$367United Airlines

Find Deal

Sat, Oct 11 - Wed, Oct 15

9:45 pm - 1:35 pmSEA-YUL

12h 50m1 stop

12:55 pm - 10:03 pmYUL-SEA

12h 08m1 stop

$383Delta

Find Deal

Fri, Oct 3 - Tue, Oct 28

8:40 am - 12:27 amSEA-YUL

36h 47m2 stops

6:45 am - 7:21 pmYUL-SEA

15h 36m2 stops

$385WestJet

Find Deal

Sat, Oct 18 - Wed, Oct 22

11:15 pm - 3:18 pmSEA-YUL

13h 03m1 stop

7:30 am - 10:09 pmYUL-SEA

17h 39m1 stop

$395American Airlines

Find Deal

Fri, Nov 7 - Sat, Nov 15

12:34 am - 11:40 amSEA-YUL

8h 06m1 stop

4:00 pm - 11:05 pmYUL-SEA

10h 05m1 stop

$402American Airlines

Find Deal

Wed, Oct 29 - Thu, Nov 6

American Airlines flights from Seattle to Montreal

Our best American Airlines deals on Seattle to Montreal flight tickets

American Airlines

Nov 7

SEA11:15 pmSeattle/Tacoma Intl

13h 03m

1 stop

YUL3:18 pmMontreal Pierre Elliott Trudeau Intl

Nov 15

YUL7:30 amMontreal Pierre Elliott Trudeau Intl

17h 39m

1 stop

SEA10:09 pmSeattle/Tacoma Intl

$395

Find similar

American Airlines

Oct 29

SEA12:34 amSeattle/Tacoma Intl

8h 06m

1 stop

YUL11:40 amMontreal Pierre Elliott Trudeau Intl

Nov 6

YUL4:00 pmMontreal Pierre Elliott Trudeau Intl

10h 05m

1 stop

SEA11:05 pmSeattle/Tacoma Intl

$402

Find similar

United Airlines flights from Seattle to Montreal

Our best United Airlines deals on Seattle to Montreal flight tickets

United Airlines

Oct 2

SEA3:28 pmSeattle/Tacoma Intl

13h 48m

1 stop

YUL8:16 amMontreal Pierre Elliott Trudeau Intl

Oct 25

YUL9:45 amMontreal Pierre Elliott Trudeau Intl

9h 00m

1 stop

SEA3:45 pmSeattle/Tacoma Intl

$361

Find similar

United Airlines

Oct 11

SEA7:05 amSeattle/Tacoma Intl

11h 24m

2 stops

YUL9:29 pmMontreal Pierre Elliott Trudeau Intl

Oct 15

YUL9:45 amMontreal Pierre Elliott Trudeau Intl

9h 00m

1 stop

SEA3:45 pmSeattle/Tacoma Intl

$367

Find similar

United Airlines

Sep 27

SEA5:00 amSeattle/Tacoma Intl

14h 06m

2 stops

YUL10:06 pmMontreal Pierre Elliott Trudeau Intl

Sep 30

YUL9:45 amMontreal Pierre Elliott Trudeau Intl

9h 00m

1 stop

SEA3:45 pmSeattle/Tacoma Intl

$371

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Thu 10/2

3:28 pm-8:16 am

1 stop13h 48m

Montreal Pierre Elliott Trudeau Intl

Sat 10/25

9:45 am-3:45 pm

1 stop9h 00m

$361

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Wed 10/1

5:30 am-7:32 pm

2 stops11h 02m

Montreal Pierre Elliott Trudeau Intl

Sat 10/25

7:30 am-2:16 pm

1 stop9h 46m

$362

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Mon 11/17

7:55 am-12:43 am

1 stop13h 48m

Montreal Pierre Elliott Trudeau Intl

Wed 11/19

4:15 pm-2:20 pm

1 stop25h 05m

$363

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Sat 10/4

10:00 am-8:50 pm

1 stop7h 50m

Montreal Pierre Elliott Trudeau Intl

Fri 10/24

3:30 pm-9:45 pm

1 stop9h 15m

$364

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Thu 10/2

8:40 am-12:27 am

2 stops12h 47m

Montreal Pierre Elliott Trudeau Intl

Fri 10/24

6:45 am-12:59 pm

2 stops33h 14m

$366

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Sat 10/11

7:05 am-9:29 pm

2 stops11h 24m

Montreal Pierre Elliott Trudeau Intl

Wed 10/15

9:45 am-3:45 pm

1 stop9h 00m

$367

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Fri 10/3

9:45 pm-1:35 pm

1 stop12h 50m

Montreal Pierre Elliott Trudeau Intl

Tue 10/28

12:55 pm-10:03 pm

1 stop12h 08m

$383

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Sat 10/18

8:40 am-12:27 am

2 stops36h 47m

Montreal Pierre Elliott Trudeau Intl

Wed 10/22

6:45 am-7:21 pm

2 stops15h 36m

$385

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Fri 11/7

11:15 pm-3:18 pm

1 stop13h 03m

Montreal Pierre Elliott Trudeau Intl

Sat 11/15

7:30 am-10:09 pm

1 stop17h 39m

$395

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Wed 10/29

12:34 am-11:40 am

1 stop8h 06m

Montreal Pierre Elliott Trudeau Intl

Thu 11/6

4:00 pm-11:05 pm

1 stop10h 05m

$402

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Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Layovers

Other information

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 $666. Flights from Seattle to Montreal on a Friday will generally be more expensive and average around $791. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our most recent data shows that the best time of day to fly to Montreal is in the afternoon. Flights from Seattle to Montreal during this time can be as low as $305. In the morning is when there is more demand to fly to Montreal, so prices are often more expensive at around $732 per ticket.

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 $550 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 $395 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 25% 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 September 2025, prices for Seattle to Montreal flights are approximately 17% cheaper 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	$219
Fastest flight time	5h 13m
Direct flights	Every day
Airports in Montreal	1 airport

The best one-way flight to Montreal from Seattle in the past 72 hours is $219. The best round-trip flight deal from Seattle to Montreal found on momondo in the last 72 hours is $488.

The fastest flight from Seattle to Montreal takes 5h 13m

Direct flights go from Seattle to Montreal every day.

There is 1 airport near Montreal: 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 13m 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?
The number of operators available for flights from Seattle/Tacoma Intl Airport to Montreal is 5 as of September 2025.
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?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Seattle to Montreal is Airbus A220-300 (55.34% of total bookings). The next most popular plane models are Airbus A330-200 (10.31%), Airbus A330-900neo (7.63%), and Boeing 777-300ER (5.73%).
What is the most popular airline from Seattle to Montreal?
Based on momondo bookings for flights between Seattle and Montreal, the leading airline is Air Canada, making up 69% of the total bookings. Other popular airlines include United Airlines with 20%, WestJet with 5%, and Delta with 4%.

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
United Airlines	PriceFrom $239	Free Cancellation	Rating 7.4 8,929 reviews	Search United Airlines flights
Air Canada	PriceFrom $273	Free Cancellation	Rating 7.1 10,000 reviews	Search Air Canada flights
WestJet	PriceFrom $289	Free Cancellation	Rating 7.2 3,091 reviews	Search WestJet flights
Delta	PriceFrom $455	Free Cancellation	Rating 7.9 7,954 reviews	Search Delta flights
American Airlines	PriceFrom $465	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights

United Airlines Flights From Seattle to Montreal
Across 7 United Airlines flights from Seattle to Montreal this week, the average price was $629, with the best United Airlines deals starting from $239 round-trip. 8,929 users have rated United Airlines on momondo, with an average score of 7.4/10.
Air Canada Flights From Seattle to Montreal
The best Air Canada deal for Seattle to Montreal flight tickets found on momondo in the last 72 hours was $273, round-trip. It should be noted that an average Air Canada flight deal for this route in this time was higher, at $605 round-trip. Air Canada operates 7 flights out of Seattle into Montreal in an average week, so prices vary by time and availability. 10,000 Air Canada reviews by users on momondo have scored the airline at 7.1/10.

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.

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Cheap flights from Seattle to Montreal from $102

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 10/17. 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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American Airlines flights from Seattle to Montreal

Our best American Airlines deals on Seattle to Montreal flight tickets

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Our best United Airlines deals on Seattle to Montreal flight tickets

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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?

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

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

Our most recent data shows that the best time of day to fly to Montreal is in the afternoon. Flights from Seattle to Montreal during this time can be as low as $305. In the morning is when there is more demand to fly to Montreal, so prices are often more expensive at around $732 per ticket.

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?

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 25% 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 September 2025, prices for Seattle to Montreal flights are approximately 17% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Seattle/Tacoma Intl to Montreal?

WestJet, Air Canada, and United Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Montreal

What airlines fly to Montreal?

Which airport is the most popular layover for flights between Seattle and Montreal?

Vancouver (YVR) was the most common stop: 70% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Seattle to Montreal?

Flights via Toronto (YYZ) offer the lowest average round-trip price of $561.

Which layover airport has the shortest travel time from Seattle to Montreal?

Flights connecting via Vancouver (YVR) have the shortest average one-way travel time: 7h 44m.

Which layover airport has the shortest connection time from Seattle to Montreal?

Philadelphia (PHL) has the shortest average layover time for this route: 1h 12m.

How many flights depart from Seattle to Montreal on average per day?

As of September 2025, there are 2 flights per day flying from Seattle to Montreal. The most common time of day flights depart is 7:00AM, with 100% of flights taking off at noon.

How many flights depart from Seattle to Montreal on average per week?

As of September 2025, there are 14 flights per week flying from Seattle to Montreal. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.

When to book flights from Seattle to Montreal

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

Fastest flight time

Direct flights

Airports in Montreal

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

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

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?

What documentation or ID do you need to fly to Montreal?

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

United Airlines Flights From Seattle to Montreal

Air Canada Flights From Seattle to Montreal

Why use momondo?

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

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

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

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

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.