
Popular airlines from Ottawa International Airport (YOW) to Seattle-Tacoma International Airport (SEA)
- WestJet
WestJet
- United
United
- Air Canada
Air Canada
- Delta
Delta
- Plan, book, fly with confidence
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Cheap flights from Ottawa (YOW) to Seattle (SEA)
Prices were available within the past 7 days and start at CA $254 for one-way flights and CA $441 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.










Find the cheapest month to fly from Ottawa (YOW) to Seattle (SEA)
August is typically the cheapest month to fly
Graph displaying average flight prices per month
Origin airport | Macdonald-Cartier Intl. |
Destination airport | Seattle - Tacoma Intl. |
Airlines serving | Air Canada, Delta, United, WestJet |
Roundtrip price | CA $440 |
Distance | 3510 km |
Ottawa to Seattle Flights
The easy way to book your flights from Ottawa to Seattle
With Expedia, it’s simple to find and book flights to Seattle from Ottawa whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Seattle - Tacoma Intl., too.
Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Ottawa to Seattle today, tomorrow, or this week.
Save dollars with cheap flights from Macdonald-Cartier Intl., YOW to Seattle - Tacoma Intl., SEA
Sort your search results by price to find great deals on your flight from Ottawa to Seattle—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Seattle from Ottawa currently is just CA $441 rising to CA $546.
Here are more money-saving tips:
- Fly in October when flight prices are normally at their lowest
- Book about a month to 6 weeks before you travel for the best prices to Seattle
- Avoid peak season and weekends when flights can cost more
- Early morning and late-night flights are sometimes cheaper, so try varying your travel times
- One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!
Reasons to choose Expedia for your flight to Seattle from Ottawa
Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Seattle with Expedia today.
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Top Routes from Ottawa
- Ottawa to Newark Liberty Intl. Airport (YOW - EWR)
- Ottawa to Calgary (YOW - YYC)
- Ottawa to Miami (YOW - MIA)
- Ottawa to Charlottetown (YOW - YYG)
- Ottawa to Fort Lauderdale (YOW - FLL)
- Ottawa to New York (YOW - LGA)
- Ottawa to Paris (YOW - CDG)
- Ottawa to Winnipeg (YOW - YWG)
- Ottawa to Halifax (YOW - YHZ)
- Ottawa to New York (YOW - JFK)
- Ottawa to Tokyo (YOW - NRT)
- Ottawa to Vancouver (YOW - YVR)
Top Routes to Seattle
- Calgary to Seattle (YYC - SEA)
- Kelowna to Seattle (YLW - SEA)
- Detroit to Seattle (DTW - SEA)
- Saskatoon to Seattle (YXE - SEA)
- Winnipeg to Seattle (YWG - SEA)
- Delhi to Seattle (DEL - SEA)
- Victoria to Seattle (YYJ - SEA)
- Montreal to Seattle (YUL - SEA)
- Buffalo to Seattle (BUF - SEA)
- Vancouver to Seattle (YVR - SEA)
- Kitchener to Seattle (YKF - SEA)
- Prince George to Seattle (YXS - SEA)
Top Routes from Ottawa
- Porter Airlines Ottawa to Newark Liberty Intl. Airport
- WestJet Ottawa to Calgary
- Porter Airlines Ottawa to Charlottetown
- Air Canada Ottawa to Paris
- Porter Airlines Ottawa to Halifax
- Air Canada Ottawa to Tokyo
- WestJet Ottawa to Vancouver
- Porter Airlines Ottawa to St. John's
- Air Canada Ottawa to London
- WestJet Ottawa to Abbotsford
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