$145 Find Cheap Flights from Seattle to Ottawa - Compare and Save

In the last 5 days, the lowest price for a flight from Seattle to Ottawa was $145 for a one-way ticket and $347 for a round-trip.

Yes

Seattle and Ottawa are both served by 1 main airport. You will leave Seattle from Seattle/Tacoma Intl and will be arriving at Ottawa.

We unfortunately don’t have that data for this specific route.

Star Alliance is the only airline alliance operating flights between Seattle and Ottawa.

The two airlines most popular with KAYAK users for flights from Seattle to Ottawa are United Airlines and WestJet. With an average price for the route of $614 and an overall rating of 7.4, United Airlines is the most popular choice. WestJet is also a great choice for the route, with an average price of $417 and an overall rating of 7.2.

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Ottawa.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ottawa from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ottawa with an airline and back to Seattle with another airline. Booking your flights between Seattle and YOW can sometimes prove cheaper using this method.

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ottawa from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.