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 $339 round trip and CA $204 one way. Prices and availability subject to change. Additional terms may apply.

Fri, May 22 - Sun, May 24
YOW
Ottawa
SEA
Seattle
CA $339 Roundtrip, found 2 hours ago
CA $339
Roundtrip
found 2 hours ago
Select WestJet flight, departing Fri, May 22 from Ottawa to Seattle, returning Sun, May 24, priced at CA $339 found 2 hours ago
Sat, May 23 - Sat, May 30
YOW
Ottawa
SEA
Seattle
CA $349 Roundtrip, found 2 days ago
CA $349
Roundtrip
found 2 days ago
Select WestJet flight, departing Sat, May 23 from Ottawa to Seattle, returning Sat, May 30, priced at CA $349 found 2 days ago
Thu, Apr 23 - Mon, Apr 27
YOW
Ottawa
SEA
Seattle
CA $393 Roundtrip, found 20 hours ago
CA $393
Roundtrip
found 20 hours ago
Select WestJet flight, departing Thu, Apr 23 from Ottawa to Seattle, returning Mon, Apr 27, priced at CA $393 found 20 hours ago
Tue, May 12 - Sun, May 17
YOW
Ottawa
SEA
Seattle
CA $398 Roundtrip, found 1 day ago
CA $398
Roundtrip
found 1 day ago
Select WestJet flight, departing Tue, May 12 from Ottawa to Seattle, returning Sun, May 17, priced at CA $398 found 1 day ago
Tue, May 12 - Sun, May 17
YOW
Ottawa
SEA
Seattle
CA $402 Roundtrip, found 1 day ago
CA $402
Roundtrip
found 1 day ago
Select WestJet flight, departing Tue, May 12 from Ottawa to Seattle, returning Sun, May 17, priced at CA $402 found 1 day ago
Tue, May 12 - Sun, May 17
YOW
Ottawa
SEA
Seattle
CA $430 Roundtrip, found 1 day ago
CA $430
Roundtrip
found 1 day ago
Select WestJet flight, departing Tue, May 12 from Ottawa to Seattle, returning Sun, May 17, priced at CA $430 found 1 day ago
Sat, Jan 10 - Fri, May 1
YOW
Ottawa
SEA
Seattle
CA $523 Roundtrip, found 21 hours ago
CA $523
Roundtrip
found 21 hours ago
Select WestJet flight, departing Sat, Jan 10 from Ottawa to Seattle, returning Fri, May 1, priced at CA $523 found 21 hours ago
Sat, Jan 10 - Fri, May 1
YOW
Ottawa
SEA
Seattle
CA $527 Roundtrip, found 21 hours ago
CA $527
Roundtrip
found 21 hours ago
Select WestJet flight, departing Sat, Jan 10 from Ottawa to Seattle, returning Fri, May 1, priced at CA $527 found 21 hours ago
Thu, Jan 15 - Wed, Jan 21
YOW
Ottawa
SEA
Seattle
CA $537 Roundtrip, found 5 days ago
CA $537
Roundtrip
found 5 days ago
Select WestJet flight, departing Thu, Jan 15 from Ottawa to Seattle, returning Wed, Jan 21, priced at CA $537 found 5 days ago
Fri, Jun 19 - Sat, Jun 27
YOW
Ottawa
SEA
Seattle
CA $550 Roundtrip, found 3 days ago
CA $550
Roundtrip
found 3 days ago
Select WestJet flight, departing Fri, Jun 19 from Ottawa to Seattle, returning Sat, Jun 27, priced at CA $550 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.