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SEA - YOW

$203 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 8/12. 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
0 bags
Wed 7/10
Wed 7/17

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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
In the last 7 days travelers have searched 42,898,604 times on KAYAK, and here is why:

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Cheap flight deals 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 and deals for you by selecting your travel dates.
Choose your dates
3:30 pm - 1:30 pmSEA-YOW
19h 00m1 stop
8:00 am - 12:56 pmYOW-SEA
7h 56m1 stop
Fri, Jul 26 - Thu, Aug 1
7:05 pm - 6:24 amSEA-YOW
8h 19m1 stop
9:45 pm - 10:04 amYOW-SEA
15h 19m1 stop
$413Air Canada
Find Deal
Tue, Jul 9 - Tue, Jul 16
3:30 pm - 1:15 pmSEA-YOW
18h 45m1 stop
7:45 pm - 5:22 pmYOW-SEA
24h 37m2 stops
Fri, Jul 19 - Sun, Jul 21
3:30 pm - 2:30 pmSEA-YOW
20h 00m1 stop
9:15 am - 5:21 pmYOW-SEA
11h 06m2 stops
Fri, Aug 2 - Fri, Aug 9
3:30 pm - 12:37 amSEA-YOW
30h 07m2 stops
6:07 am - 12:56 pmYOW-SEA
9h 49m1 stop
$452WestJet
Find Deal
Fri, Aug 16 - Sat, Aug 31
3:30 pm - 2:31 pmSEA-YOW
20h 01m1 stop
6:07 am - 12:56 pmYOW-SEA
9h 49m1 stop
$458WestJet
Find Deal
Thu, Aug 15 - Fri, Aug 30
11:59 pm - 9:52 pmSEA-YOW
18h 53m2 stops
6:30 am - 10:12 pmYOW-SEA
18h 42m2 stops
$546United Airlines
Find Deal
Tue, Jul 9 - Tue, Jul 16
12:30 am - 5:04 pmSEA-YOW
13h 34m1 stop
6:30 am - 10:22 pmYOW-SEA
18h 52m1 stop
$567United Airlines
Find Deal
Mon, Aug 5 - Mon, Aug 12
6:15 pm - 6:52 amSEA-YOW
9h 37m1 stop
6:07 am - 7:00 pmYOW-SEA
15h 53m2 stops
$680Delta
Find Deal
Sat, Aug 17 - Sun, Sep 1
2:10 pm - 6:52 amSEA-YOW
13h 42m2 stops
6:07 am - 3:13 pmYOW-SEA
12h 06m2 stops
$729Delta
Find Deal
Thu, Aug 15 - Fri, Aug 30

Flights from Seattle to Ottawa - Travel Insights & Trends

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’s the cheapest day of the week to fly from Seattle to Ottawa?

The average price of all flights from Seattle to Ottawa clicked on KAYAK for each day over the last 12 months.
For Seattle to Ottawa, Saturday is the cheapest day to fly on average and Friday is the most expensive. Flying from Ottawa back to Seattle, the best deals are generally found on Saturday, with Monday being the most expensive.

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 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 January, where tickets cost $556 on average. On the other hand, the most expensive months are April and July, where the average cost of tickets is $783 and $686 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for 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 month.
To get a below average price on the flight from Seattle to Ottawa, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 33 days before departure.

Which airlines provide the cheapest flights from Seattle to Ottawa?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the past 3 days, the cheapest one-way tickets to Ottawa from Seattle were found on WestJet ($203) and Air Canada ($231), and the lowest round-trip tickets were found on Air Canada ($413) and WestJet ($452).

Good to know

Low season

March

High season

August

Cheapest flight

$203
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly and prices are also 11% 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 $203 for a one-way ticket and $407 for a round-trip.

  • Do I need a passport to fly between Seattle and Ottawa?

    Yes

  • Which airports will I be using when flying from Seattle to Ottawa?

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

  • 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, and SkyTeam are the airline alliances operating flights between Seattle and Ottawa, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Seattle to Ottawa, United Airlines or WestJet?

    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 $636 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 $685 and an overall rating of 7.4.

  • 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. Booking your flights between Seattle and YOW can sometimes prove cheaper using this method.

  • 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.

See more FAQs

Top 3 airlines serving from Seattle to Ottawa

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Ottawa. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Ottawa? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
WestJetOverall score based on 2847 reviews
7.3Comfort
6.4Entertainment
7.6Boarding
8.1Crew
6.4Food
Airline reviews

It was okay overall, but it was a 4 hours flight and the only thing we got was snacks, I really expected breakfast.

8.0 ExcellentAmira, May 2024YYC - YOW
Read more about WestJet reviews

It was okay overall, but it was a 4 hours flight and the only thing we got was snacks, I really expected breakfast.

Keep better track of bags. Not sure how they got lost. Also not sure why it took two weeks for us to get them back. Had to buy a bunch of necessities because they were packed.

They lost our luggage and didn’t return it until 15 days AFTER we got back.

food worker strike caused lack of service. I know, not your fault but a bit of a inconvenience.

The staff on the WestJet flight were friendly and helpful. The flight was smooth and we arrived 30 minutes ahead of time.

not as spartan as an air Canada flight, less comfortable / no in-flight screen as compared to similar priced Air Transat flight. Crew Cabin were professional and approachable. They got the job done, safe flight, on time despite delay in take off.

There was no entertainment and no announcement till well after I and others asked about it, and no "compensation" (like a free snack)

4 hour delay, lost our bags, staff was loud and it was an overnight flight

Entertainment was the only issue. I did not have app & not equipped to watch movie on my phone. Used to other carriers with access to a screen for viewing. Other than that, everything was fine.

Great flight. Pilot was able to fully make up the 42 minute late arrival of the aircraft for an on time arrival in Toronto.

Not worth the premium paid for the first class ticket

Fine. Though no food or entertainment so the survey needs to be updated with those options.

Backpack should NOT allowed put in the flight bin , only put it under the seat. I can't find space put my carry on luggage!!! and I pay for it ! that was very bad experience

Standard flight experience, but there is only power at the seat to row 20 on the aircraft, on my initial check in it did not say that was the case

I feel like they have upgraded the app since I last flew United and I found it to be super helpful. I had stopped flying United unless absolutely necessary and my experience on this trip indicates they have been working hard to improve their services.

The ride was good but no food ot entertainment hence, it was just over an hour flight.

Positive: Entertainment via phone on the short was great and my first time. Good food and wine and head phones for free. Negative: Seat hardly reclined on the long flight. Breakfast was an egg with a bun. No egg choices and rather have something sweet like bun/jam and Youghurt.

Aircraft has better leg room than any of United's larger planes. We had requested mobility assistance for this and related flights. United's response to all was superb.

No snacks served! Seating in the kast row in uncomfortable.

By in large it was a good experience. The flight crew was great and that's the most important to me. Boarding was fine.

My flight got canceled. Then AC rebooked me to a next day flight. No compensation no apology. It almost messed up my entire trip and schedule. However, all the unexpepected seems routine and ordinary to AC, so customers need to get used to.

I love air Canada. The staff is so helpful and friendly and attentive. I paid for extra room but chose a ser near a person who took up a lot of space which gave me less space than regular economy, I was sad I did that!

Did not appreciate “hidden fees” to check a bag for international flight and purchase a seat to be next to my spouse. Won’t choose this airline again.

No meal. Flight crew was wonderful, happily finding me storage for my guitar. THANK YOU!!!

A220 plane had 5 seats across which is great for couples who can snag the A&C seats. Seat itself is borderline comfortable but still tough on a 5+ hour flight. Overhead bins are small so if you're not in at least boarding group 5, you could be in trouble. No included food service. Non-alcoholic drinks are free but even the most basic snacks are for a charge. Price was reasonable for the only direct SEA-YUL flight. Boarding is efficient even managing passport checks. Worth flying for the direct flight.

The original flight from Boston to Toronto was canceled because of a mechanical failure. I was then scheduled on a flight to go from Boston to Montreal and then Montreal to Toronto. The flight was extremely full and I had to check my carry-on bag. When I actually got on the plane there appeared to be room for my bag. I understand the mechanical failures happen. But it was frustrating that they pestered me to check my bag when I don't believe it was necessary. Additionally, not just with Air Canada, modern airline seats are incredibly uncomfortable. There is considerable research that shows that the shape of them is poor for back health.

Unable to initiate refund/reschedule the ticket #worst experience #lost 900$

Flight was delayed for almost 3 hours. Communication of gate change was poor. Email and screen said one gate and it was a different gate from that. Gate changed first to 64 B and then to 64 C. Originally it was 68B. 64C was not communicated properly!

This was a red eye return, so I doubt there would be anyway to make it better. Other than adding beds.

Direct nonstop flight was great. Flight was delayed and the crew announced a 2h delay on the sound system. 30 min or so later I hear my name on the sound system for immediate board. Several other passangers were late too. Reason: The crew incorrectly announced a 2h delay when in reality they meant a new boarding time at 2pm.

Book cheap flights from Seattle to Ottawa

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Seattle to Ottawa found on KAYAK in the last 72 hours.
8/12Mon
1 stopWestJet
7h 47mSEA-YOW
$203
6/22Sat
1 stopAir Canada
8h 48mSEA-YOW
$231
8/12Mon
2 stopsWestJet
10h 42mSEA-YOW
$243
8/11Sun
1 stopUnited Airlines
13h 34mSEA-YOW
$305
6/22Sat
2 stops
18h 54mSEA-YOW
$321
6/22Sat
2 stopsWestJet
28h 31mSEA-YOW
$428
8/11Sun
2 stopsUnited Airlines
13h 13mSEA-YOW
$479
8/12Mon
3 stopsUnited Airlines
15h 20mSEA-YOW
$551

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Last minute flights from Seattle to Ottawa

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Seattle to Ottawa that are departing in the next 10 days.
6/14Fri
multi-stop
42h 51mSEA-YOW
6/23Sun
multi-stop
8h 36mYOW-SEA
$606
6/14Fri
multi-stop
11h 45mSEA-YOW
6/23Sun
multi-stop
15h 15mYOW-SEA
$638
6/14Fri
multi-stopAir Canada
8h 16mSEA-YOW
6/22Sat
multi-stopAir Canada
10h 14mYOW-SEA
$652
6/13Thu
multi-stop
13h 39mSEA-YOW
6/23Sun
multi-stop
15h 15mYOW-SEA
$676
6/13Thu
multi-stop
13h 39mSEA-YOW
6/23Sun
multi-stop
15h 55mYOW-SEA
$688
6/14Fri
multi-stopWestJet
21h 41mSEA-YOW
6/23Sun
multi-stopWestJet
18h 21mYOW-SEA
$721
6/14Fri
multi-stop
22h 29mSEA-YOW
6/23Sun
multi-stop
24h 31mYOW-SEA
$743
6/13Thu
multi-stopUnited Airlines
13h 39mSEA-YOW
6/22Sat
multi-stopUnited Airlines
13h 04mYOW-SEA
$774
6/14Fri
multi-stopWestJet
21h 41mSEA-YOW
6/22Sat
multi-stopWestJet
35h 37mYOW-SEA
$871
6/14Fri
multi-stop
16h 25mSEA-YOW
6/22Sat
multi-stop
14h 30mYOW-SEA
$880

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Seattle - Ottawa Flights

Departure:

Seattle (SEA)United States

Destination:

Ottawa (YOW)Canada

Return flight deals:

Ottawa - Seattle

Cabin classes:

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