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Cheap flights from Seattle to Montreal from $106

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 5/11. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
WestJet Logo
2:05 pm - 12:42 am
SEA
-
YUL
7h 37m
1 stop
WestJet Logo
6:45 am - 1:08 pm
YUL
-
SEA
9h 23m
1 stop
$250WestJet
sáb., may. 2 - sáb., may. 9
WestJet Logo
7:35 pm - 7:00 am
SEA
-
YUL
8h 25m
1 stop
WestJet Logo
5:30 pm - 9:40 am
YUL
-
SEA
19h 10m
1 stop
$297WestJet
dom., may. 10 - sáb., 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
$304WestJet
vie., may. 22 - mié., may. 27
WestJet Logo
2:05 pm - 12:42 am
SEA
-
YUL
7h 37m
1 stop
WestJet Logo
7:25 pm - 1:08 pm
YUL
-
SEA
20h 43m
2 stops
$307WestJet
sáb., may. 2 - sáb., may. 9
WestJet Logo
7:35 pm - 7:00 am
SEA
-
YUL
8h 25m
1 stop
WestJet Logo
8:00 pm - 6:45 pm
YUL
-
SEA
25h 45m
1 stop
$310WestJet
mié., may. 27 - mié., jun. 3
WestJet Logo
7:35 pm - 7:00 am
SEA
-
YUL
8h 25m
1 stop
WestJet Logo
7:25 pm - 6:45 pm
YUL
-
SEA
26h 20m
2 stops
$311WestJet
mié., may. 27 - mié., jun. 3
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
$312WestJet
mié., abr. 29 - dom., may. 3
WestJet Logo
7:35 pm - 7:00 am
SEA
-
YUL
8h 25m
1 stop
WestJet Logo
7:25 pm - 6:45 pm
YUL
-
SEA
26h 20m
2 stops
$313WestJet
mié., abr. 29 - dom., may. 3
WestJet Logo
3:10 pm - 3:13 pm
SEA
-
YUL
21h 03m
1 stop
WestJet Logo
7:15 am - 9:40 am
YUL
-
SEA
29h 25m
1 stop
$315WestJet
mar., abr. 14 - mar., abr. 28
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
$317WestJet
dom., may. 10 - sáb., may. 16

WestJet flights from Seattle to Montreal

Our best WestJet deals on Seattle to Montreal flight tickets
WestJet
May 2
SEA2:05 pmSeattle/Tacoma Intl
7h 37m
1 stop
YUL12:42 amMontreal Pierre Elliott Trudeau Intl
May 9
YUL6:45 amMontreal Pierre Elliott Trudeau Intl
9h 23m
1 stop
SEA1:08 pmSeattle/Tacoma Intl
$250
WestJet
May 17
SEA7:35 pmSeattle/Tacoma Intl
8h 25m
1 stop
YUL7:00 amMontreal Pierre Elliott Trudeau Intl
May 20
YUL5:30 pmMontreal Pierre Elliott Trudeau Intl
19h 10m
1 stop
SEA9:40 amSeattle/Tacoma Intl
$284
WestJet
Apr 30
SEA7:35 pmSeattle/Tacoma Intl
8h 25m
1 stop
YUL7:00 amMontreal Pierre Elliott Trudeau Intl
May 3
YUL8:00 pmMontreal Pierre Elliott Trudeau Intl
16h 40m
1 stop
SEA9:40 amSeattle/Tacoma Intl
$286

Air Canada flights from Seattle to Montreal

Our best Air Canada deals on Seattle to Montreal flight tickets
Air Canada
Mar 12
SEA3:40 pmSeattle/Tacoma Intl
12h 30m
2 stops
YUL7:10 amMontreal Pierre Elliott Trudeau Intl
Mar 19
YUL7:30 amMontreal Pierre Elliott Trudeau Intl
10h 31m
1 stop
SEA3:01 pmSeattle/Tacoma Intl
$438
Air Canada
Feb 9
SEA9:55 amSeattle/Tacoma Intl
8h 05m
1 stop
YUL9:00 pmMontreal Pierre Elliott Trudeau Intl
Feb 13
YUL9:00 amMontreal Pierre Elliott Trudeau Intl
8h 31m
1 stop
SEA2:31 pmSeattle/Tacoma Intl
$515
Air Canada
Feb 9
SEA9:55 amSeattle/Tacoma Intl
8h 05m
1 stop
YUL9:00 pmMontreal Pierre Elliott Trudeau Intl
Feb 13
YUL1:25 pmMontreal Pierre Elliott Trudeau Intl
8h 51m
1 stop
SEA7:16 pmSeattle/Tacoma Intl
$526

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 enero 27, 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

sáb. 5/2

2:05 pm-12:42 am

1 stop7h 37m

Montreal Pierre Elliott Trudeau Intl

sáb. 5/9

6:45 am-1:08 pm

1 stop9h 23m

$250

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

dom. 5/10

7:35 pm-7:00 am

1 stop8h 25m

Montreal Pierre Elliott Trudeau Intl

sáb. 5/16

5:30 pm-9:40 am

1 stop19h 10m

$297

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

vie. 5/22

7:35 pm-7:00 am

1 stop8h 25m

Montreal Pierre Elliott Trudeau Intl

mié. 5/27

8:00 pm-9:40 am

1 stop16h 40m

$304

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

sáb. 5/2

2:05 pm-12:42 am

1 stop7h 37m

Montreal Pierre Elliott Trudeau Intl

sáb. 5/9

7:25 pm-1:08 pm

2 stops20h 43m

$307

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

mié. 5/27

7:35 pm-7:00 am

1 stop8h 25m

Montreal Pierre Elliott Trudeau Intl

mié. 6/3

8:00 pm-6:45 pm

1 stop25h 45m

$310

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

mié. 5/27

7:35 pm-7:00 am

1 stop8h 25m

Montreal Pierre Elliott Trudeau Intl

mié. 6/3

7:25 pm-6:45 pm

2 stops26h 20m

$311

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

mié. 4/29

7:35 pm-7:00 am

1 stop8h 25m

Montreal Pierre Elliott Trudeau Intl

dom. 5/3

8:00 pm-9:40 am

1 stop16h 40m

$312

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

mié. 4/29

7:35 pm-7:00 am

1 stop8h 25m

Montreal Pierre Elliott Trudeau Intl

dom. 5/3

7:25 pm-6:45 pm

2 stops26h 20m

$313

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

mar. 4/14

3:10 pm-3:13 pm

1 stop21h 03m

Montreal Pierre Elliott Trudeau Intl

mar. 4/28

7:15 am-9:40 am

1 stop29h 25m

$315

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

dom. 5/10

7:35 pm-7:00 am

1 stop8h 25m

Montreal Pierre Elliott Trudeau Intl

sáb. 5/16

7:25 pm-9:40 am

2 stops17h 15m

$317

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

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?

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 $503.

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 $648. Flights from Seattle to Montreal on a Friday will generally be more expensive and average around $829. 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 $592 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

$644

Fastest flight time

5h 07m

Direct flights

Every day

Airports in Montreal

2 airports
The best flight deal from Seattle to Montreal found on momondo in the last 72 hours is $644
The fastest flight from Seattle to Montreal takes 5h 07m
Direct flights go from Seattle to Montreal every day.
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
3,251 reviews
Search WestJet flights
United AirlinesPriceFrom $199Free CancellationRating
7.4
9,207 reviews
Search United Airlines flights
Air CanadaPriceFrom $257Free CancellationRating
7.1
10,660 reviews
Search Air Canada flights
DeltaPriceFrom $348Free CancellationRating
7.9
8,121 reviews
Search Delta 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.

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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