Cheap Flights from Ottawa (YOW) to Seattle (SEA)

Within the past 7 days on Expedia, for flights departing within the next year, the lowest price advertised for a round-trip flight from YOW to Seattle - Tacoma Intl. Airport (SEA) was . Fares this good don't hang around forever, so book yours today. Prices and availability are subject to change. Additional terms apply.

When it comes to cancellation fees, every airline has its own set of terms and conditions. If you decide to cancel your holiday, head to our Customer Service Portal.

Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Macdonald-Cartier Intl. Airport (YOW) to Seattle - Tacoma Intl. Airport (SEA) flights, you'll see a "no change fees" filter for you to select.

The flight distance from Ottawa to SeaTac is 3 500 kilometres. Bring a drink, a few snacks and a good book to read. Keep yourself entertained and the time will fly by.

If you want to travel straight from YOW to Seattle - Tacoma Intl. Airport (SEA), you'll need to book a flight with at least one stop. Unfortunately, there aren't any airlines that fly directly on this route.

Late planners can sometimes pick up a bargain, with some of the cheapest airfares from Ottawa International Airport to SEA cropping up a few weeks before the departure date. If you'd rather book ahead, Expedia compares and updates all the best flight deals frequently — as early as 12 months in advance in some cases. It depends on the carrier though, as not all airlines issue prices so far in advance.