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 $411 round trip and CA $239 one way. Prices and availability subject to change. Additional terms may apply.

Thu, Oct. 16 - Thu, Oct. 23
YOW
Ottawa
SEA
Seattle
CA $411 Roundtrip, just found
CA $411
Roundtrip
just found
Select WestJet flight, departing Thu, Oct. 16 from Ottawa to Seattle, returning Thu, Oct. 23, priced at CA $411 just found
Wed, Oct. 8 - Sat, Oct. 18
YOW
Ottawa
SEA
Seattle
CA $420 Roundtrip, found 5 hours ago
CA $420
Roundtrip
found 5 hours ago
Select WestJet flight, departing Wed, Oct. 8 from Ottawa to Seattle, returning Sat, Oct. 18, priced at CA $420 found 5 hours ago
Thu, Oct. 16 - Thu, Oct. 23
YOW
Ottawa
SEA
Seattle
CA $465 Roundtrip, just found
CA $465
Roundtrip
just found
Select WestJet flight, departing Thu, Oct. 16 from Ottawa to Seattle, returning Thu, Oct. 23, priced at CA $465 just found
Thu, Oct. 2 - Wed, Oct. 8
YOW
Ottawa
SEA
Seattle
CA $470 Roundtrip, found 5 hours ago
CA $470
Roundtrip
found 5 hours ago
Select WestJet flight, departing Thu, Oct. 2 from Ottawa to Seattle, returning Wed, Oct. 8, priced at CA $470 found 5 hours ago
Wed, Oct. 8 - Sat, Oct. 18
YOW
Ottawa
SEA
Seattle
CA $474 Roundtrip, found 5 hours ago
CA $474
Roundtrip
found 5 hours ago
Select WestJet flight, departing Wed, Oct. 8 from Ottawa to Seattle, returning Sat, Oct. 18, priced at CA $474 found 5 hours ago
Thu, Oct. 2 - Wed, Oct. 8
YOW
Ottawa
SEA
Seattle
CA $501 Roundtrip, found 5 hours ago
CA $501
Roundtrip
found 5 hours ago
Select WestJet flight, departing Thu, Oct. 2 from Ottawa to Seattle, returning Wed, Oct. 8, priced at CA $501 found 5 hours ago
Thu, Oct. 2 - Wed, Oct. 8
YOW
Ottawa
SEA
Seattle
CA $506 Roundtrip, found 5 hours ago
CA $506
Roundtrip
found 5 hours ago
Select WestJet flight, departing Thu, Oct. 2 from Ottawa to Seattle, returning Wed, Oct. 8, priced at CA $506 found 5 hours ago
Mon, Oct. 6 - Fri, Oct. 10
YOW
Ottawa
SEA
Seattle
CA $511 Roundtrip, found 1 day ago
CA $511
Roundtrip
found 1 day ago
Select WestJet flight, departing Mon, Oct. 6 from Ottawa to Seattle, returning Fri, Oct. 10, priced at CA $511 found 1 day ago
Thu, Oct. 2 - Wed, Oct. 8
YOW
Ottawa
SEA
Seattle
CA $515 Roundtrip, found 5 hours ago
CA $515
Roundtrip
found 5 hours ago
Select WestJet flight, departing Thu, Oct. 2 from Ottawa to Seattle, returning Wed, Oct. 8, priced at CA $515 found 5 hours ago
Wed, Sep. 17 - Tue, Sep. 23
YOW
Ottawa
SEA
Seattle
CA $548 Roundtrip, found 2 days ago
CA $548
Roundtrip
found 2 days ago
Select WestJet flight, departing Wed, Sep. 17 from Ottawa to Seattle, returning Tue, Sep. 23, priced at CA $548 found 2 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.