Cheap Flights From Pierre Elliott Trudeau Intl. (YUL) To Seattle - Tacoma Intl. (SEA)

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Cheapest Flights from Montreal (YUL) to Seattle (SEA)

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were CA $453 round trip and CA $331 one way. Prices and availability subject to change. Additional terms may apply.

Mon, Jan 19 - Tue, Feb 3
YUL
Montreal
SEA
Seattle
CA $453 Roundtrip, found 2 days ago
CA $453
Roundtrip
found 2 days ago
Select WestJet flight, departing Mon, Jan 19 from Montreal to Seattle, returning Tue, Feb 3, priced at CA $453 found 2 days ago
Mon, Jan 19 - Wed, Feb 4
YUL
Montreal
SEA
Seattle
CA $531 Roundtrip, found 2 days ago
CA $531
Roundtrip
found 2 days ago
Select WestJet flight, departing Mon, Jan 19 from Montreal to Seattle, returning Wed, Feb 4, priced at CA $531 found 2 days ago
Wed, Nov 19 - Wed, Dec 10
YUL
Montreal
SEA
Seattle
CA $571 Roundtrip, found 6 days ago
CA $571
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Nov 19 from Montreal to Seattle, returning Wed, Dec 10, priced at CA $571 found 6 days ago
Wed, Dec 24 - Mon, Jan 12
YUL
Montreal
SEA
Seattle
CA $584 Roundtrip, found 6 days ago
CA $584
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Dec 24 from Montreal to Seattle, returning Mon, Jan 12, priced at CA $584 found 6 days ago
Wed, Nov 19 - Wed, Dec 10
YUL
Montreal
SEA
Seattle
CA $598 Roundtrip, found 6 days ago
CA $598
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Nov 19 from Montreal to Seattle, returning Wed, Dec 10, priced at CA $598 found 6 days ago
Wed, Nov 19 - Wed, Dec 10
YUL
Montreal
SEA
Seattle
CA $604 Roundtrip, found 6 days ago
CA $604
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Nov 19 from Montreal to Seattle, returning Wed, Dec 10, priced at CA $604 found 6 days ago
Wed, Nov 19 - Wed, Dec 10
YUL
Montreal
SEA
Seattle
CA $605 Roundtrip, found 6 days ago
CA $605
Roundtrip
found 6 days ago
Select American Airlines flight, departing Wed, Nov 19 from Montreal to Seattle, returning Wed, Dec 10, priced at CA $605 found 6 days ago
Wed, Nov 19 - Wed, Dec 10
YUL
Montreal
SEA
Seattle
CA $609 Roundtrip, found 6 days ago
CA $609
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Nov 19 from Montreal to Seattle, returning Wed, Dec 10, priced at CA $609 found 6 days ago
Mon, Nov 24 - Thu, Dec 4
YUL
Montreal
SEA
Seattle
CA $616 Roundtrip, found 10 hours ago
CA $616
Roundtrip
found 10 hours ago
Select Delta flight, departing Mon, Nov 24 from Montreal to Seattle, returning Thu, Dec 4, priced at CA $616 found 10 hours ago
Wed, Nov 19 - Wed, Dec 10
YUL
Montreal
SEA
Seattle
CA $618 Roundtrip, found 6 days ago
CA $618
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Nov 19 from Montreal to Seattle, returning Wed, Dec 10, priced at CA $618 found 6 days ago

Frequently asked questions

Are there direct flights from YUL to Seattle - Tacoma Intl. Airport (SEA)?
You won't find a flight straight from Montréal–Trudeau to Seattle - Tacoma Intl. Airport (SEA), but don't stress. United Airlines, Air Canada and Delta offer flights with just one stopover.
What airlines fly from Pierre Elliott Trudeau Intl. Airport (YUL) to Seattle - Tacoma Intl. Airport (SEA)?
Unfortunately, you won't find any airlines that fly direct from Montréal–Trudeau to SEA. But don't let that get in the way of a good trip. Use your layover time as an opportunity to check out the local food and drink, have a shop and potentially discover a new city you want to explore further.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.