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 $352 round trip and CA $210 one way. Prices and availability subject to change. Additional terms may apply.

Mon, Sep 29 - Tue, Oct 7
YOW
Ottawa
SEA
Seattle
CA $352 Roundtrip, found 16 hours ago
CA $352
Roundtrip
found 16 hours ago
Select WestJet flight, departing Mon, Sep 29 from Ottawa to Seattle, returning Tue, Oct 7, priced at CA $352 found 16 hours ago
Thu, Oct 2 - Tue, Oct 7
YOW
Ottawa
SEA
Seattle
CA $360 Roundtrip, found 1 day ago
CA $360
Roundtrip
found 1 day ago
Select United flight, departing Thu, Oct 2 from Ottawa to Seattle, returning Tue, Oct 7, priced at CA $360 found 1 day ago
Tue, Jan 20 - Tue, Feb 3
YOW
Ottawa
SEA
Seattle
CA $369 Roundtrip, found 1 day ago
CA $369
Roundtrip
found 1 day ago
Select WestJet flight, departing Tue, Jan 20 from Ottawa to Seattle, returning Tue, Feb 3, priced at CA $369 found 1 day ago
Thu, Oct 2 - Tue, Oct 7
YOW
Ottawa
SEA
Seattle
CA $396 Roundtrip, found 1 day ago
CA $396
Roundtrip
found 1 day ago
Select United flight, departing Thu, Oct 2 from Ottawa to Seattle, returning Tue, Oct 7, priced at CA $396 found 1 day ago
Thu, Oct 2 - Tue, Oct 7
YOW
Ottawa
SEA
Seattle
CA $397 Roundtrip, found 1 day ago
CA $397
Roundtrip
found 1 day ago
Select United flight, departing Thu, Oct 2 from Ottawa to Seattle, returning Tue, Oct 7, priced at CA $397 found 1 day ago
Thu, Oct 2 - Mon, Oct 20
YOW
Ottawa
SEA
Seattle
CA $406 Roundtrip, found 1 day ago
CA $406
Roundtrip
found 1 day ago
Select WestJet flight, departing Thu, Oct 2 from Ottawa to Seattle, returning Mon, Oct 20, priced at CA $406 found 1 day ago
Mon, Oct 20 - Fri, Oct 24
YOW
Ottawa
SEA
Seattle
CA $411 Roundtrip, found 5 days ago
CA $411
Roundtrip
found 5 days ago
Select WestJet flight, departing Mon, Oct 20 from Ottawa to Seattle, returning Fri, Oct 24, priced at CA $411 found 5 days ago
Tue, Oct 7 - Tue, Oct 21
YOW
Ottawa
SEA
Seattle
CA $411 Roundtrip, found 1 day ago
CA $411
Roundtrip
found 1 day ago
Select Air Canada flight, departing Tue, Oct 7 from Ottawa to Seattle, returning Tue, Oct 21, priced at CA $411 found 1 day ago
Mon, Sep 29 - Wed, Oct 8
YOW
Ottawa
SEA
Seattle
CA $415 Roundtrip, found 3 days ago
CA $415
Roundtrip
found 3 days ago
Select WestJet flight, departing Mon, Sep 29 from Ottawa to Seattle, returning Wed, Oct 8, priced at CA $415 found 3 days ago
Wed, Oct 22 - Sat, Nov 8
YOW
Ottawa
SEA
Seattle
CA $418 Roundtrip, found 1 day ago
CA $418
Roundtrip
found 1 day ago
Select WestJet flight, departing Wed, Oct 22 from Ottawa to Seattle, returning Sat, Nov 8, priced at CA $418 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.