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YOW - SEA

C$ 298 Find cheap flights from Ottawa to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ottawa to Seattle departing on 16/7. 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
Sat 29/6
Sat 6/7

Search hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ottawa to Seattle, 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 Ottawa to Seattle, as well as popular online travel agencies
In the last 7 days, travellers have searched 42,686,544 times on KAYAK, and here is why:

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Cheap flight deals from Ottawa to Seattle (YOW-SEA)

 
These are the cheapest deals for flights from Ottawa to Seattle currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Ottawa to Seattle

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Ottawa to Seattle.

Recent one-way flight deals from Ottawa to Seattle

Only flying one-way? Below are some of the best one-way flight deals from Ottawa to Seattle found on KAYAK recently.

Recent last-minute flight deals from Ottawa to Seattle

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Ottawa to Seattle.

Recent direct flight deals from Ottawa to Seattle

The latest deals for direct flights from Ottawa to Seattle so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Ottawa to Seattle

Find recent round-trip train or bus tickets from Ottawa to Seattle.

All round-trip flight deals to Seattle

The cheapest plane tickets to Seattle found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
8:00 a.m. - 12:59 p.m.YOW-SEA
7h 59m1 stop
1:50 p.m. - 12:37 a.m.SEA-YOW
7h 47m1 stop
C$ 557WestJet
Find Deal
Mon, 15 Jul - Wed, 17 Jul
6:07 a.m. - 12:59 p.m.YOW-SEA
9h 52m1 stop
1:50 p.m. - 12:37 a.m.SEA-YOW
7h 47m1 stop
C$ 560WestJet
Find Deal
Mon, 15 Jul - Wed, 17 Jul
6:07 a.m. - 2:46 p.m.YOW-SEA
11h 39m2 stops
3:30 p.m. - 6:52 a.m.SEA-YOW
12h 22m2 stops
C$ 568WestJet
Find Deal
Sun, 14 Jul - Sun, 28 Jul
6:07 a.m. - 12:59 p.m.YOW-SEA
9h 52m1 stop
3:30 p.m. - 2:31 p.m.SEA-YOW
20h 01m1 stop
C$ 571WestJet
Find Deal
Tue, 16 Jul - Thu, 18 Jul
5:30 a.m. - 10:51 a.m.YOW-SEA
8h 21m1 stop
11:10 p.m. - 10:58 a.m.SEA-YOW
8h 48m1 stop
C$ 583Air Canada
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Wed, 17 Jul - Thu, 25 Jul
9:05 p.m. - 12:30 p.m.YOW-SEA
18h 25m2 stops
7:05 p.m. - 6:24 a.m.SEA-YOW
8h 19m1 stop
C$ 594Air Canada
Find Deal
Tue, 2 Jul - Wed, 3 Jul
9:35 p.m. - 12:59 p.m.YOW-SEA
18h 24m3 stops
1:50 p.m. - 12:28 a.m.SEA-YOW
31h 38m3 stops
C$ 666
Find Deal
Mon, 15 Jul - Wed, 17 Jul
9:05 a.m. - 5:22 p.m.YOW-SEA
11h 17m2 stops
5:50 a.m. - 12:28 a.m.SEA-YOW
15h 38m3 stops
C$ 672
Find Deal
Tue, 2 Jul - Wed, 3 Jul
5:26 p.m. - 8:02 a.m.YOW-SEA
17h 36m2 stops
6:35 p.m. - 9:52 p.m.SEA-YOW
24h 17m2 stops
C$ 687United Airlines
Find Deal
Wed, 19 Jun - Sat, 29 Jun
7:30 p.m. - 12:31 p.m.YOW-SEA
20h 01m2 stops
12:30 a.m. - 5:04 p.m.SEA-YOW
13h 34m1 stop
C$ 698United Airlines
Find Deal
Mon, 15 Jul - Tue, 16 Jul
6:07 a.m. - 12:59 p.m.YOW-SEA
9h 52m1 stop
C$ 298WestJet
Find Deal
Tue, 16 Jul
8:00 a.m. - 12:59 p.m.YOW-SEA
7h 59m1 stop
C$ 300WestJet
Find Deal
Mon, 15 Jul
6:09 a.m. - 12:56 p.m.YOW-SEA
9h 47m1 stop
C$ 315WestJet
Find Deal
Tue, 18 Jun
6:03 a.m. - 2:48 p.m.YOW-SEA
11h 45m2 stops
C$ 320WestJet
Find Deal
Mon, 30 Sep
5:30 a.m. - 10:51 a.m.YOW-SEA
8h 21m1 stop
C$ 326Air Canada
Find Deal
Sun, 4 Aug
4:10 p.m. - 8:09 a.m.YOW-SEA
42h 59m3 stops
C$ 330
Find Deal
Thu, 20 Jun
5:10 p.m. - 12:59 p.m.YOW-SEA
22h 49m3 stops
C$ 335
Find Deal
Tue, 16 Jul
7:20 a.m. - 12:27 p.m.YOW-SEA
8h 07m1 stop
C$ 357Air Canada
Find Deal
Wed, 5 Jun
6:38 a.m. - 9:20 p.m.YOW-SEA
17h 42m2 stops
C$ 365United Airlines
Find Deal
Tue, 4 Jun
6:38 a.m. - 10:50 p.m.YOW-SEA
19h 12m2 stops
C$ 372United Airlines
Find Deal
Wed, 5 Jun
7:30 p.m. - 12:59 a.m.YOW-SEA
8h 29m1 stop
11:59 p.m. - 5:04 p.m.SEA-YOW
14h 05m1 stop
C$ 602United Airlines
Find Deal
Mon, 3 Jun - Mon, 10 Jun
7:30 p.m. - 8:02 a.m.YOW-SEA
15h 32m2 stops
6:35 p.m. - 5:04 p.m.SEA-YOW
19h 29m2 stops
C$ 707United Airlines
Find Deal
Mon, 3 Jun - Mon, 10 Jun

Flights from Ottawa to Seattle - Travel Insights & Trends

Get data-powered insights and trends into flights from Ottawa to Seattle 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 Ottawa to Seattle?

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Ottawa to Seattle, 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 Ottawa to Seattle is January, where tickets cost C$ 599 on average. On the other hand, the most expensive months are February and July, where the average cost of tickets is C$ 961 and C$ 846 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Ottawa to Seattle, 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 Ottawa to Seattle, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 12 days before departure.

Which airlines provide the cheapest flights from Ottawa to Seattle?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from Ottawa to Seattle found by KAYAK users in the last 72 hours was for C$ 557 on WestJet, followed by Air Canada (C$ 583). One-way flight deals have also been found from as low as C$ 298 on WestJet and from C$ 326 on Air Canada.

Good to know

Low season

January

High season

August

Cheapest flight

C$ 298
Best time to beat the crowds (19% less expensive on average)
Most popular time to fly and prices are also 11% lower on average.
Flight from Ottawa to Seattle

When to book flights from Ottawa to Seattle

Are your dates flexible? Find out the best times to travel from Ottawa to Seattle 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 Ottawa to Seattle

  • What is the cheapest flight from Ottawa to Seattle?

    In the last 3 days, the lowest price for a flight from Ottawa to Seattle was C$ 218 for a one-way ticket and C$ 407 for a round-trip.

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

    Ottawa airport is called Ottawa and the only airport in Seattle is Seattle/Tacoma Intl.

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

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

  • Which airline alliances offer flights from Ottawa to Seattle?

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

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

    The two airlines most popular with KAYAK users for flights from Ottawa to Seattle are WestJet and United Airlines. With an average price for the route of C$ 673 and an overall rating of 7.5, WestJet is the most popular choice. United Airlines is also a great choice for the route, with an average price of C$ 766 and an overall rating of 7.4.

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

    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 Ottawa to Seattle.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Ottawa 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 Ottawa to Seattle?

    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 Seattle with an airline and back to Ottawa with another airline.

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

    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 Seattle from Ottawa 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 Ottawa to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Ottawa to Seattle. 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 Ottawa to Seattle? 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.
7.5
WestJetOverall score based on 2866 reviews
6.4Food
6.4Entertainment
7.7Boarding
7.3Comfort
8.1Crew
Airline reviews

Terrible! Delayed three times, landed at some corner of airport, walked in bitter cold night, took a bus, bad experience

2.0 MediocreAnonymous, May 2024YYC - SEA
Read more about WestJet reviews

Terrible! Delayed three times, landed at some corner of airport, walked in bitter cold night, took a bus, bad experience

It was very, very cold extremely uncomfortable almost unbearable I was sitting at the front of the cabin

Too many oversized carryon baggage. If carrier reduced checked luggage fee this could be avoided. The staff were friendly and helpful, very professional.

Nice smooth flight with pleasant stewards. Slept most of the flight, they could have slowly turned on the lights to make it more pleasant. Otherwise a good trip.

Great! No food was available during the flight due to the catering service strike but snacks were given throughout the flight which was nice.

I wish that seats closer to the front of the plan were available, but when I booked the flight the seats were VERY expensive so I did not book seats at that time. The day before flying only seats at the back of the plane were available. It takes so long to board the plane and empty the plane on arrival due to SO many roller bags.

Crew was rude.didn’t even say hi or welcome to board

Nothing special. Unacceptable wait for baggage on arriving in Calgary

Departure delay on a late night flight. Made us even later. Tired but got home.

Westjet forced me to put my carry-on baggage in check-in probably because I was assigned seat 23A (the last row seat), which had no cabin space, which is unfair. I wanted to carry on my luggage so that I don't have to wait at the airport for my luggage. Also, because there was no cabin space, I was forced to keep my laptop bag under the seat, which I didn't want to as I was carrying 2 laptops and charger. The airline should basically tell people that if you are assigned a last row seat, then you are not allowed a cabin baggage or a personal item.

Marked by flight delays on all segments of the trip. Food in first class cabin was mediocre and overhead cabin storage was not adequate. Overall, the premium charge for first class cabin was poor and over hyped. This will be our last flight with UA.

An hour and a half late is UNACCEPTABLE. The negative impact to our family is unconscionable. And for the price we were forced to pay...

We enjoyed that we boarded and took off on time. We didn’t like that our connection flight was a twenty minute walk through the airport with only one hour in between flights.

It was good! Appreciated that it was very on schedule so it made the connecting flight less stressful

Two flights,both poor. No entertainment. Cramped and uncomfortable seats, little space, the rest was OK. Staff were acceptable good.

I just wrote a text which was supposed to be for the flight from Denver to spokane not Frankfurt to Denver.

The crew was doing their best on an old plane needing updating. Chairs that creaked and wouldn’t stay in position. My tray table was unusable as was on-board entertainment due the audio needing usb earphones (that were not provided). Prior to boarding in Toronto and despite being scheduled for a wheelchair and assistance, we were dropped off by clubcar without a wheelchair which I found myself by a gate. Due to no boarding gate assigned at that time we waited and when it was, it subsequently was moved from 64 to 95. No help could be found so I pushed my husband’s chair to that furthest gate in the airport at the highest speed possible for a 73 year old. And by that I mean I ran. It was a very stressful experience.

Wifi wasn't working on one of the UA flights after boarding.

Leg room was lacking. Legs crammed into seat in front.

T hey did a great job. Flight was on time .

The Carry-on luggage that approved by TSA and all other airlines,- always an issue with Air Canada. This is inappropriate as my carry on suitcase meets the requirements however it always asked to check in on AC flight on the gate. Yes I have it for free, but it takes extra time to pick up on the carousel. Apparently it fit the overhead space, so why AC has this issue all the time?

The terminal this flight boarded from was so far away, poorly temperature controlled, and generally uncomfortable. The plane was small but the flight was short, so it wasn't so bad.

Seriously need to improve the time schedule and the plans

Great TV, easy boarding, wonderful ground crew and flight crew.

Rude Customer Service at checkin, 90 minute limit in flight check in is too strict. I was in line for 30 minutes because of slow/insufficient workers. Somewhere I got to the the counter of course the employee warned me about the 90 minutes. People were cutting the lines. No one did anything.

Overall, I would have to say my experience with Air Canada was mediocre their DC tens. Need to be updated not comfortable at all. Only one out of my four flights was decent. The staffing was very nice. Going through customs in Montreal was quick and easy. Air Canada has room for improvement with their facilities.

Everything was great. I really like how they had their safety film set up showing you the beauty of the country.

I liked the early check in. Flight was a bit bumpy due yo weather. Overall, everything went well.

Limited snack options cause the snack vendor was on strike

It was an excellent experience, traveling from Toronto to Denver with United.

Book cheap flights from Ottawa to Seattle

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Ottawa to Seattle found on KAYAK in the last 72 hours.
16/7Tue
1 stopWestJet
9h 52mYOW-SEA
C$ 298
15/7Mon
1 stopWestJet
7h 59mYOW-SEA
C$ 300
18/6Tue
1 stopWestJet
9h 47mYOW-SEA
C$ 315
30/9Mon
2 stopsWestJet
11h 45mYOW-SEA
C$ 320
4/8Sun
1 stopAir Canada
8h 21mYOW-SEA
C$ 326
20/6Thu
3 stops
42h 59mYOW-SEA
C$ 330
16/7Tue
3 stops
22h 49mYOW-SEA
C$ 335
5/6Wed
1 stopAir Canada
8h 07mYOW-SEA
C$ 357
4/6Tue
2 stopsUnited Airlines
17h 42mYOW-SEA
C$ 365
5/6Wed
2 stopsUnited Airlines
19h 12mYOW-SEA
C$ 372

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Last minute flights from Ottawa to Seattle

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 Ottawa to Seattle that are departing in the next 10 days.
3/6Mon
multi-stopUnited Airlines
8h 29mYOW-SEA
10/6Mon
multi-stopUnited Airlines
14h 05mSEA-YOW
C$ 602
3/6Mon
multi-stopUnited Airlines
15h 32mYOW-SEA
10/6Mon
multi-stopUnited Airlines
19h 29mSEA-YOW
C$ 707

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Ottawa - Seattle Flights

Departure:

Ottawa (YOW)Canada

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Ottawa

Cabin classes:

Browse origins: