SEA - YOW

C$ 182 Find Cheap Flights from Seattle to Ottawa

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Ottawa departing on 16/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Ottawa

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Ottawa, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Ottawa, as well as popular online travel agencies
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Booking Insights
Flights Deals

Cheap Flights from Seattle to Ottawa (SEA-YOW)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Ottawa that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Ottawa

Thu, 18 Sep - Sun, 21 Sep
WestJet Logo
7:05 a.m. - 6:20 p.m.SEA-YOW
8h 15m1 stop
WestJet Logo
3:45 p.m. - 8:29 p.m.YOW-SEA
7h 44m1 stop
C$ 458WestJet
Find Deal
Thu, 18 Sep - Sun, 21 Sep
WestJet Logo
7:05 a.m. - 6:20 p.m.SEA-YOW
8h 15m1 stop
WestJet Logo
5:15 p.m. - 12:59 p.m.YOW-SEA
22h 44m2 stops
C$ 466WestJet
Find Deal
Wed, 10 Sep - Wed, 17 Sep
WestJet Logo
1:50 p.m. - 12:40 a.m.SEA-YOW
7h 50m1 stop
WestJet Logo
3:45 p.m. - 8:29 p.m.YOW-SEA
7h 44m1 stop
C$ 468WestJet
Find Deal
Sat, 13 Sep - Sat, 20 Sep
WestJet Logo
1:50 p.m. - 4:19 p.m.SEA-YOW
23h 29m2 stops
WestJet Logo
7:15 p.m. - 12:33 p.m.YOW-SEA
20h 18m2 stops
C$ 476WestJet
Find Deal
Wed, 10 Sep - Wed, 17 Sep
WestJet Logo
8:40 a.m. - 12:22 a.m.SEA-YOW
12h 42m2 stops
WestJet Logo
3:45 p.m. - 8:29 p.m.YOW-SEA
7h 44m1 stop
C$ 479WestJet
Find Deal
Thu, 18 Sep - Sun, 21 Sep
WestJet Logo
7:05 a.m. - 4:19 p.m.SEA-YOW
30h 14m2 stops
WestJet Logo
5:15 p.m. - 12:59 p.m.YOW-SEA
22h 44m2 stops
C$ 481WestJet
Find Deal
Tue, 23 Sep - Tue, 30 Sep
WestJet Logo
2:05 p.m. - 12:40 a.m.SEA-YOW
7h 35m1 stop
WestJet Logo
5:55 a.m. - 12:59 p.m.YOW-SEA
10h 04m2 stops
C$ 483WestJet
Find Deal
Tue, 23 Sep - Tue, 30 Sep
WestJet Logo
2:05 p.m. - 12:40 a.m.SEA-YOW
7h 35m1 stop
WestJet Logo
5:55 a.m. - 12:59 p.m.YOW-SEA
10h 04m2 stops
C$ 484WestJet
Find Deal
Thu, 18 Sep - Sun, 21 Sep
Logo
1:50 p.m. - 5:21 p.m.SEA-YOW
24h 31m3 stops
Logo
8:45 a.m. - 8:29 p.m.YOW-SEA
14h 44m2 stops
C$ 567
Find Deal
Thu, 18 Sep - Sun, 21 Sep
Logo
7:05 a.m. - 12:21 a.m.SEA-YOW
14h 16m3 stops
Logo
7:00 a.m. - 8:29 p.m.YOW-SEA
16h 29m3 stops
C$ 583
Find Deal
Booking Insights

KAYAK's insights & trends for Seattle to Ottawa flights

Get data-powered insights and trends into flights from Seattle to Ottawa to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Seattle to Ottawa?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Ottawa, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Ottawa is September, where tickets cost C$ 553 (return) on average. On the other hand, the most expensive months are October and February, where the average cost of round-trip tickets is C$ 1,000 and C$ 908 respectively.

How far in advance should I book a flight from Seattle to Ottawa?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Ottawa, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Ottawa, you should book around 2 weeks before departure, which saves you about 36% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Find deals

Good to know

Low seasonJanuary
Cheapest flightC$ 182
Best time to beat the crowds (1% less expensive on average)
Most popular time to fly and prices are also 10% lower on average.
Flight from Seattle to Ottawa

When to book flights from Seattle to Ottawa

Are your dates flexible? Find out the best times to travel from Seattle to Ottawa based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Ottawa

  • What is the cheapest flight from Seattle to Ottawa?

    In the last 3 days, the lowest price for a flight from Seattle to Ottawa was C$ 132 for a one-way ticket and C$ 332 for a round-trip.

  • Which aircraft models fly most regularly from Seattle to Ottawa?

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

  • Which airline alliances offer flights from Seattle to Ottawa?

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

  • How does KAYAK find such low prices on flights from Seattle to Ottawa?

    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.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket 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.

  • What is the Hacker Fare option on flights from Seattle to Ottawa?

    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.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Ottawa?

    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.

Everything you need to know for your flight from Seattle to Ottawa

Information on your arrival and departure airports

Seattle (SEA)
Ottawa (YOW)

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.