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 $350 round trip and CA $220 one way. Prices and availability subject to change. Additional terms may apply.

Fri, May 8 - Mon, May 11
YOW
Ottawa
SEA
Seattle
CA $350 Roundtrip, found 6 days ago
CA $350
Roundtrip
found 6 days ago
Select WestJet flight, departing Fri, May 8 from Ottawa to Seattle, returning Mon, May 11, priced at CA $350 found 6 days ago
Thu, Apr 30 - Wed, May 6
YOW
Ottawa
SEA
Seattle
CA $371 Roundtrip, found 12 hours ago
CA $371
Roundtrip
found 12 hours ago
Select WestJet flight, departing Thu, Apr 30 from Ottawa to Seattle, returning Wed, May 6, priced at CA $371 found 12 hours ago
Tue, Apr 28 - Wed, Apr 29
YOW
Ottawa
SEA
Seattle
CA $392 Roundtrip, found 6 days ago
CA $392
Roundtrip
found 6 days ago
Select WestJet flight, departing Tue, Apr 28 from Ottawa to Seattle, returning Wed, Apr 29, priced at CA $392 found 6 days ago
Sat, May 23 - Sun, May 31
YOW
Ottawa
SEA
Seattle
CA $403 Roundtrip, found 2 days ago
CA $403
Roundtrip
found 2 days ago
Select WestJet flight, departing Sat, May 23 from Ottawa to Seattle, returning Sun, May 31, priced at CA $403 found 2 days ago
Thu, May 7 - Fri, May 15
YOW
Ottawa
SEA
Seattle
CA $425 Roundtrip, found 2 days ago
CA $425
Roundtrip
found 2 days ago
Select WestJet flight, departing Thu, May 7 from Ottawa to Seattle, returning Fri, May 15, priced at CA $425 found 2 days ago
Thu, Apr 23 - Mon, Apr 27
YOW
Ottawa
SEA
Seattle
CA $430 Roundtrip, found 7 hours ago
CA $430
Roundtrip
found 7 hours ago
Select WestJet flight, departing Thu, Apr 23 from Ottawa to Seattle, returning Mon, Apr 27, priced at CA $430 found 7 hours ago
Mon, Apr 13 - Mon, Apr 27
YOW
Ottawa
SEA
Seattle
CA $432 Roundtrip, found 1 day ago
CA $432
Roundtrip
found 1 day ago
Select WestJet flight, departing Mon, Apr 13 from Ottawa to Seattle, returning Mon, Apr 27, priced at CA $432 found 1 day ago
Fri, May 29 - Mon, Jun 1
YOW
Ottawa
SEA
Seattle
CA $433 Roundtrip, found 2 days ago
CA $433
Roundtrip
found 2 days ago
Select WestJet flight, departing Fri, May 29 from Ottawa to Seattle, returning Mon, Jun 1, priced at CA $433 found 2 days ago
Sun, Jun 7 - Thu, Jun 11
YOW
Ottawa
SEA
Seattle
CA $454 Roundtrip, found 5 days ago
CA $454
Roundtrip
found 5 days ago
Select WestJet flight, departing Sun, Jun 7 from Ottawa to Seattle, returning Thu, Jun 11, priced at CA $454 found 5 days ago
Sun, Feb 8 - Wed, Feb 18
YOW
Ottawa
SEA
Seattle
CA $460 Roundtrip, found 1 day ago
CA $460
Roundtrip
found 1 day ago
Select Air Canada flight, departing Sun, Feb 8 from Ottawa to Seattle, returning Wed, Feb 18, priced at CA $460 found 1 day 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.