Cheap flights from Seattle to Montreal from $164
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 9/18. 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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Not ready to book? to track prices.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
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
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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
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Route
Depart
Return
SeattleMontreal
SEA Seattle/Tacoma Intl - YUL Montreal Pierre Elliott Trudeau Intl
SEAYUL
Seattle/Tacoma Intl
Thu 10/8
7:35 pm-7:05 am
1 stop8h 30m
Montreal Pierre Elliott Trudeau Intl
Tue 10/13
6:45 am-6:45 pm
2 stops15h 00m
SeattleMontreal
SEA Seattle/Tacoma Intl - YUL Montreal Pierre Elliott Trudeau Intl
SEAYUL
Seattle/Tacoma Intl
Fri 9/25
7:35 pm-7:05 am
1 stop8h 30m
Montreal Pierre Elliott Trudeau Intl
Mon 9/28
6:45 am-6:45 pm
2 stops15h 00m
SeattleMontreal
SEA Seattle/Tacoma Intl - YUL Montreal Pierre Elliott Trudeau Intl
SEAYUL
Seattle/Tacoma Intl
Thu 9/10
7:35 pm-7:05 am
1 stop8h 30m
Montreal Pierre Elliott Trudeau Intl
Wed 9/16
6:00 pm-10:47 pm
1 stop7h 47m
SeattleMontreal
SEA Seattle/Tacoma Intl - YUL Montreal Pierre Elliott Trudeau Intl
SEAYUL
Seattle/Tacoma Intl
Thu 9/17
7:35 pm-7:05 am
1 stop8h 30m
Montreal Pierre Elliott Trudeau Intl
Sat 9/26
4:10 pm-9:04 pm
1 stop7h 54m
SeattleMontreal
SEA Seattle/Tacoma Intl - YUL Montreal Pierre Elliott Trudeau Intl
SEAYUL
Seattle/Tacoma Intl
Sat 1/16
10:10 am-8:33 pm
1 stop7h 23m
Montreal Pierre Elliott Trudeau Intl
Sat 1/23
3:10 pm-8:59 pm
1 stop8h 49m
SeattleMontreal
SEA Seattle/Tacoma Intl - YUL Montreal Pierre Elliott Trudeau Intl
SEAYUL
Seattle/Tacoma Intl
Tue 9/15
8:00 am-6:52 pm
1 stop7h 52m
Montreal Pierre Elliott Trudeau Intl
Wed 9/23
6:00 pm-10:47 pm
1 stop7h 47m
SeattleMontreal
SEA Seattle/Tacoma Intl - YUL Montreal Pierre Elliott Trudeau Intl
SEAYUL
Seattle/Tacoma Intl
Tue 1/12
11:45 am-11:10 pm
1 stop8h 25m
Montreal Pierre Elliott Trudeau Intl
Tue 1/19
12:45 pm-10:05 pm
1 stop12h 20m
SeattleMontreal
SEA Seattle/Tacoma Intl - YUL Montreal Pierre Elliott Trudeau Intl
SEAYUL
Seattle/Tacoma Intl
Wed 1/13
11:05 pm-12:15 pm
1 stop10h 10m
Montreal Pierre Elliott Trudeau Intl
Tue 1/19
4:55 pm-10:05 pm
1 stop8h 10m
SeattleMontreal
SEA Seattle/Tacoma Intl - YUL Montreal Pierre Elliott Trudeau Intl
SEAYUL
Seattle/Tacoma Intl
Tue 9/1
11:00 pm-10:40 am
1 stop8h 40m
Montreal Pierre Elliott Trudeau Intl
Wed 9/2
2:20 pm-8:45 pm
1 stop9h 25m
SeattleMontreal
SEA Seattle/Tacoma Intl - YUL Montreal Pierre Elliott Trudeau Intl
SEAYUL
Seattle/Tacoma Intl
Sat 8/22
5:20 pm-8:16 am
1 stop11h 56m
Montreal Pierre Elliott Trudeau Intl
Sat 8/29
4:55 pm-10:43 pm
1 stop8h 48m
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 typical price of a round-trip flight between Seattle and Montreal Pierre Elliott Trudeau Intl Airport?
Prices are currently low for flights on this route.
Typical prices usually range from $456 to $720.The lowest price recently found on this route was $376.
What is the cheapest month to fly to Montreal Pierre Elliott Trudeau Intl Airport?
The month of July is another great option to travel to Montreal Pierre Elliott Trudeau Intl Airport, with average flight prices from Seattle averaging around $605.
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 Wednesday. Travelers who choose to depart for Montreal Pierre Elliott Trudeau Intl Airport on a Wednesday will often find tickets for as low as $614. Flights from Seattle to Montreal Pierre Elliott Trudeau Intl Airport on a Friday will generally be more expensive and average around $845. 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 from Seattle 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 $720 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 $274 on momondo.
What cabin class options are available on Seattle to Montreal Pierre Elliott Trudeau Intl Airport flights?
There are 2 cabin classes available to choose from on Seattle to Montreal Pierre Elliott Trudeau Intl Airport 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.
What is the cheapest airline that flies from Seattle/Tacoma Intl to Montreal Pierre Elliott Trudeau Intl?
WestJet, Delta, and United Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Montreal Pierre Elliott Trudeau Intl
What airlines fly to Montreal Pierre Elliott Trudeau Intl Airport?
Air Canada, WestJet and United Airlines are the top three most popular airlines that fly to Montreal Pierre Elliott Trudeau Intl Airport from Seattle according to our data. Air Canada is the first choice among our users, with 72% of people opting to fly with this airline when traveling to Montreal Pierre Elliott Trudeau Intl Airport. Keep in mind that there are 4 different airlines that fly to Montreal Pierre Elliott Trudeau Intl Airport on a routine basis, so you have a few additional options to choose from.
When to book flights from Seattle to Montreal Pierre Elliott Trudeau Intl Airport
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
Frequently asked questions about flying from Seattle to Montreal Pierre Elliott Trudeau Intl Airport
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 6h 50m 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?
The number of operators available for flights from Seattle/Tacoma Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport is 4 as of August 2026.
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?
momondo data reveals that the most frequently booked plane model on the route from Seattle to Montreal Pierre Elliott Trudeau Intl Airport is Boeing 787-9 Dreamliner, representing 17.02% of all bookings. The subsequent popular models are Boeing 787-10 Dreamliner at 12.77%, Airbus A220-300 at 12.77%, and Airbus A350-900 at 10.64%.
What is the most popular airline from Seattle to Montreal Pierre Elliott Trudeau Intl Airport?
Based on momondo bookings for flights between Seattle and Montreal Pierre Elliott Trudeau Intl Airport, the leading airline is Air Canada, making up 72% of the total bookings. Other popular airlines include WestJet with 11%, United Airlines with 9%, and Delta with 8%.
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 | ||
|---|---|---|---|---|---|
| PriceFrom $195 | Free Cancellation | Rating 7.2 3,430 reviews | |||
| PriceFrom $265 | Free Cancellation | Rating 7.4 10,102 reviews | |||
| PriceFrom $310 | Free Cancellation | Rating 7.8 8,506 reviews | |||
| PriceFrom $436 | Free Cancellation | Rating 7.1 11,462 reviews |
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Book flights to Montreal if you plan to visit one of these locationsWhy 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.