Cheap Flights from Seattle (SEA) to Montreal (YUL) from HK$1,226~

View HK$1,226 flight on Mon, 23 Feb 2026Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Montreal–Trudeau Intl. Airport (YUL)

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 35% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Find Cheap Flights from Seattle (SEA) to Montreal (YUL)

Prices were available within the past 7 days and start at HK$1,226 for one-way flights and HK$3,734 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, 17 Nov - Fri, 21 Nov
SEA
Seattle
YUL
Montreal
HK$3,734 Return, found 4 days ago
HK$3,734
Return
found 4 days ago
Select Delta flight, departing Mon, 17 Nov from Seattle to Montreal, returning Fri, 21 Nov, priced at HK$3,734 found 4 days ago
WestJet
Mon, 23 Feb - Fri, 27 Feb
SEA
Seattle
YUL
Montreal
HK$3,752 Return, found 1 day ago
HK$3,752
Return
found 1 day ago
Select WestJet flight, departing Mon, 23 Feb from Seattle to Montreal, returning Fri, 27 Feb, priced at HK$3,752 found 1 day ago
Delta
Mon, 17 Nov - Fri, 21 Nov
SEA
Seattle
YUL
Montreal
HK$3,794 Return, found 4 days ago
HK$3,794
Return
found 4 days ago
Select Delta flight, departing Mon, 17 Nov from Seattle to Montreal, returning Fri, 21 Nov, priced at HK$3,794 found 4 days ago
Delta
Mon, 17 Nov - Fri, 21 Nov
SEA
Seattle
YUL
Montreal
HK$3,834 Return, found 4 days ago
HK$3,834
Return
found 4 days ago
Select Delta flight, departing Mon, 17 Nov from Seattle to Montreal, returning Fri, 21 Nov, priced at HK$3,834 found 4 days ago
Delta
Mon, 17 Nov - Fri, 21 Nov
SEA
Seattle
YUL
Montreal
HK$3,838 Return, found 4 days ago
HK$3,838
Return
found 4 days ago
Select Delta flight, departing Mon, 17 Nov from Seattle to Montreal, returning Fri, 21 Nov, priced at HK$3,838 found 4 days ago
Delta
Mon, 17 Nov - Fri, 21 Nov
SEA
Seattle
YUL
Montreal
HK$3,878 Return, found 4 days ago
HK$3,878
Return
found 4 days ago
Select Delta flight, departing Mon, 17 Nov from Seattle to Montreal, returning Fri, 21 Nov, priced at HK$3,878 found 4 days ago
Delta
Mon, 17 Nov - Fri, 21 Nov
SEA
Seattle
YUL
Montreal
HK$3,885 Return, found 4 days ago
HK$3,885
Return
found 4 days ago
Select Delta flight, departing Mon, 17 Nov from Seattle to Montreal, returning Fri, 21 Nov, priced at HK$3,885 found 4 days ago
United
Mon, 23 Feb - Fri, 27 Feb
SEA
Seattle
YUL
Montreal
HK$3,934 Return, found 1 day ago
HK$3,934
Return
found 1 day ago
Select United flight, departing Mon, 23 Feb from Seattle to Montreal, returning Fri, 27 Feb, priced at HK$3,934 found 1 day ago
American Airlines
Mon, 17 Nov - Fri, 21 Nov
SEA
Seattle
YUL
Montreal
HK$4,019 Return, found 4 days ago
HK$4,019
Return
found 4 days ago
Select American Airlines flight, departing Mon, 17 Nov from Seattle to Montreal, returning Fri, 21 Nov, priced at HK$4,019 found 4 days ago
Alaska Airlines
Mon, 8 Dec - Tue, 16 Dec
SEA
Seattle
YUL
Montreal
HK$4,044 Return, found 1 day ago
HK$4,044
Return
found 1 day ago
Select Alaska Airlines flight, departing Mon, 8 Dec from Seattle to Montreal, returning Tue, 16 Dec, priced at HK$4,044 found 1 day ago

Find the cheapest month to fly from Seattle (SEA) to Montreal (YUL)

October is typically the cheapest month to fly

From HK$2,324 - HK$5,986 per traveller.
Seattle to Montreal route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Pierre Elliott Trudeau Intl.
Airlines serving
Air Canada
Return price
HK$3,734
Distance
3643 km

Flights from Seattle to Montreal

Book cheap flights from Seattle (SEA) to Montreal (YUL) on Expedia.com.hk. Find the best flight deals to destinations around the world for your next leisure or business travel on Expedia.com.hk.

Search for flights from Seattle (SEA) to Montreal (YUL) to find great flight deals suitable to your travel date and time. Expedia.com.hk flight booking search engine is simple to use and looking for cheap flights is as easy as a click of a mouse or on your mobile devices.

Be assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Seattle (SEA) to Montreal (YUL) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

Save more when combine your Montreal flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in Montreal and things to do in Montreal for your perfect vacation with Expedia Thing to Do.

If you would like to book flights to Montreal more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Montreal is HK$1,226 now!

 

Frequently asked questions

How much is a flight from Seattle - Tacoma Intl. Airport (SEA) to Montreal Airport?
Based on fares available within the last 7 days on Expedia for flights departing within the next year, round-trip journeys from Seattle - Tacoma Intl. Airport (SEA) to Montreal Airport start from HK$3,734. Make your booking ASAP to score the best price for your next big adventure. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from SEA to Pierre Elliott Trudeau Intl. Airport (YUL)?
Most flights can be conveniently canceled online, but whether you incur a fee varies between airlines. If you do have to cancel your escape, follow the easy instructions in the Customer Service Portal.
How do I find cheap flights from Seattle - Tacoma Intl. Airport (SEA) to Montréal–Trudeau that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for SEA to Montreal Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Sea-Tac Airport to Montréal–Trudeau?
It's around 3,700 kilometers between SEA and Montreal Airport, so expect to be flying for a while. Keep yourself occupied with things like a magazine or a thrilling novel.
Which airlines fly direct from Sea-Tac Airport to Pierre Elliott Trudeau Intl. Airport (YUL)?
A popular option with many travelers, Air Canada (AC) offers 17 flights every month from Seattle - Tacoma Intl. Airport (SEA) to Montréal–Trudeau. Pick the one that fits with your travel schedule and book your seat today.
Are SEA to Montreal Airport flight tickets cheaper when they're purchased at the last minute?
Fares from Seattle - Tacoma Intl. Airport (SEA) to Montréal–Trudeau are available up to 12 months prior to departure on Expedia. And although you may pick up a great last-minute deal, it's never something you can count on. Also, booking your flights well in advance means you'll have more choices — and you can avoid being wedged in the dreaded middle seat! We frequently update our fares to bring you the best bargains, so keep checking in for all the latest specials.

Explore a world of travel with Expedia

*Available to Expedia members.