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 $348 round trip and CA $208 one way. Prices and availability subject to change. Additional terms may apply.

Tue., Jul. 1 - Sat., Jul. 5
YOW
Ottawa
SEA
Seattle
CA $348 Roundtrip, found 5 days ago
CA $348
Roundtrip
found 5 days ago
Select WestJet flight, departing Tue., Jul. 1 from Ottawa to Seattle, returning Sat., Jul. 5, priced at CA $348 found 5 days ago
Mon., Jun. 16 - Wed., Jun. 25
YOW
Ottawa
SEA
Seattle
CA $370 Roundtrip, found 6 days ago
CA $370
Roundtrip
found 6 days ago
Select WestJet flight, departing Mon., Jun. 16 from Ottawa to Seattle, returning Wed., Jun. 25, priced at CA $370 found 6 days ago
Fri., May 30 - Mon., Jun. 2
YOW
Ottawa
SEA
Seattle
CA $407 Roundtrip, found 4 days ago
CA $407
Roundtrip
found 4 days ago
Select WestJet flight, departing Fri., May 30 from Ottawa to Seattle, returning Mon., Jun. 2, priced at CA $407 found 4 days ago
Sat., Jul. 19 - Sat., Aug. 2
YOW
Ottawa
SEA
Seattle
CA $410 Roundtrip, found 6 days ago
CA $410
Roundtrip
found 6 days ago
Select WestJet flight, departing Sat., Jul. 19 from Ottawa to Seattle, returning Sat., Aug. 2, priced at CA $410 found 6 days ago
Thu., Jun. 12 - Tue., Jun. 17
YOW
Ottawa
SEA
Seattle
CA $413 Roundtrip, found 19 hours ago
CA $413
Roundtrip
found 19 hours ago
Select WestJet flight, departing Thu., Jun. 12 from Ottawa to Seattle, returning Tue., Jun. 17, priced at CA $413 found 19 hours ago
Fri., May 2 - Sat., May 10
YOW
Ottawa
SEA
Seattle
CA $414 Roundtrip, just found
CA $414
Roundtrip
just found
Select WestJet flight, departing Fri., May 2 from Ottawa to Seattle, returning Sat., May 10, priced at CA $414 just found
Tue., Jun. 24 - Tue., Jul. 8
YOW
Ottawa
SEA
Seattle
CA $429 Roundtrip, found 20 hours ago
CA $429
Roundtrip
found 20 hours ago
Select WestJet flight, departing Tue., Jun. 24 from Ottawa to Seattle, returning Tue., Jul. 8, priced at CA $429 found 20 hours ago
Fri., Aug. 15 - Sat., Aug. 23
YOW
Ottawa
SEA
Seattle
CA $446 Roundtrip, found 1 hour ago
CA $446
Roundtrip
found 1 hour ago
Select WestJet flight, departing Fri., Aug. 15 from Ottawa to Seattle, returning Sat., Aug. 23, priced at CA $446 found 1 hour ago
Sat., Jul. 19 - Sat., Aug. 2
YOW
Ottawa
SEA
Seattle
CA $447 Roundtrip, found 6 days ago
CA $447
Roundtrip
found 6 days ago
Select WestJet flight, departing Sat., Jul. 19 from Ottawa to Seattle, returning Sat., Aug. 2, priced at CA $447 found 6 days ago
Tue., Sep. 2 - Tue., Sep. 16
YOW
Ottawa
SEA
Seattle
CA $451 Roundtrip, just found
CA $451
Roundtrip
just found
Select WestJet flight, departing Tue., Sep. 2 from Ottawa to Seattle, returning Tue., Sep. 16, priced at CA $451 just found

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.