Cheap Flights From Macdonald-Cartier Intl. (YOW) To Seattle - Tacoma Intl. (SEA)

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Cheapest Flights from Ottawa (YOW) to Seattle (SEA)

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were CA $340 round trip and CA $204 one way. Prices and availability subject to change. Additional terms may apply.

Thu, May 7 - Wed, May 20
YOW
Ottawa
SEA
Seattle
CA $340 Roundtrip, found 6 hours ago
CA $340
Roundtrip
found 6 hours ago
Select WestJet flight, departing Thu, May 7 from Ottawa to Seattle, returning Wed, May 20, priced at CA $340 found 6 hours ago
Sat, May 23 - Fri, May 29
YOW
Ottawa
SEA
Seattle
CA $348 Roundtrip, found 3 days ago
CA $348
Roundtrip
found 3 days ago
Select WestJet flight, departing Sat, May 23 from Ottawa to Seattle, returning Fri, May 29, priced at CA $348 found 3 days ago
Thu, Apr 16 - Thu, Apr 30
YOW
Ottawa
SEA
Seattle
CA $393 Roundtrip, found 2 days ago
CA $393
Roundtrip
found 2 days ago
Select WestJet flight, departing Thu, Apr 16 from Ottawa to Seattle, returning Thu, Apr 30, priced at CA $393 found 2 days ago
Sat, May 23 - Fri, May 29
YOW
Ottawa
SEA
Seattle
CA $402 Roundtrip, found 3 days ago
CA $402
Roundtrip
found 3 days ago
Select WestJet flight, departing Sat, May 23 from Ottawa to Seattle, returning Fri, May 29, priced at CA $402 found 3 days ago
Tue, Apr 14 - Sat, Apr 25
YOW
Ottawa
SEA
Seattle
CA $430 Roundtrip, found 3 days ago
CA $430
Roundtrip
found 3 days ago
Select WestJet flight, departing Tue, Apr 14 from Ottawa to Seattle, returning Sat, Apr 25, priced at CA $430 found 3 days ago
Sat, May 23 - Fri, May 29
YOW
Ottawa
SEA
Seattle
CA $439 Roundtrip, found 3 days ago
CA $439
Roundtrip
found 3 days ago
Select WestJet flight, departing Sat, May 23 from Ottawa to Seattle, returning Fri, May 29, priced at CA $439 found 3 days ago
Thu, Apr 16 - Thu, Apr 30
YOW
Ottawa
SEA
Seattle
CA $481 Roundtrip, found 2 days ago
CA $481
Roundtrip
found 2 days ago
Select WestJet flight, departing Thu, Apr 16 from Ottawa to Seattle, returning Thu, Apr 30, priced at CA $481 found 2 days ago
Sat, May 23 - Sat, May 30
YOW
Ottawa
SEA
Seattle
CA $486 Roundtrip, found 4 days ago
CA $486
Roundtrip
found 4 days ago
Select WestJet flight, departing Sat, May 23 from Ottawa to Seattle, returning Sat, May 30, priced at CA $486 found 4 days ago
Sat, May 23 - Sat, May 30
YOW
Ottawa
SEA
Seattle
CA $490 Roundtrip, found 4 days ago
CA $490
Roundtrip
found 4 days ago
Select WestJet flight, departing Sat, May 23 from Ottawa to Seattle, returning Sat, May 30, priced at CA $490 found 4 days ago
Wed, Jan 14 - Thu, Jan 22
YOW
Ottawa
SEA
Seattle
CA $539 Roundtrip, found 3 days ago
CA $539
Roundtrip
found 3 days ago
Select WestJet flight, departing Wed, Jan 14 from Ottawa to Seattle, returning Thu, Jan 22, priced at CA $539 found 3 days ago

Frequently asked questions

Are there direct flights from YOW to SEA?
Air Canada, WestJet and Air New Zealand will fly you to Seattle from Ottawa with one stopover. Unfortunately, there are no direct flights between Ottawa International Airport and Sea-Tac Airport just yet.
What airlines fly from YOW to Sea-Tac Airport?
Currently, no airlines offer a direct flight between Ottawa International Airport and Seattle - Tacoma Intl. Airport (SEA). Save time and avoid annoying stopovers by investigating the most efficient routes well in advance.
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.