Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Seattle to Ottawa from $216

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Ottawa departing on 9/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Ottawa

Cheap round-trip flights

Enter your travel dates to find the best prices.
WestJet Logo
7:35 pm - 5:35 am
SEA
-
YOW
7h 00m
1 stop
WestJet Logo
1:20 pm - 6:45 pm
YOW
-
SEA
8h 25m
1 stop
$437WestJet
Fri, Jul 10 - Fri, Jul 17
WestJet Logo
7:00 am - 7:20 pm
SEA
-
YOW
9h 20m
1 stop
WestJet Logo
1:20 pm - 6:45 pm
YOW
-
SEA
8h 25m
1 stop
$442WestJet
Thu, Sep 3 - Mon, Sep 7
WestJet Logo
7:35 pm - 5:35 am
SEA
-
YOW
7h 00m
1 stop
WestJet Logo
1:20 pm - 6:45 pm
YOW
-
SEA
8h 25m
1 stop
$445WestJet
Mon, Aug 10 - Mon, Aug 17
WestJet Logo
7:35 pm - 5:35 am
SEA
-
YOW
7h 00m
1 stop
WestJet Logo
1:20 pm - 6:45 pm
YOW
-
SEA
8h 25m
1 stop
$456WestJet
Mon, Jul 13 - Thu, Aug 27
WestJet Logo
7:00 am - 5:15 pm
SEA
-
YOW
7h 15m
1 stop
WestJet Logo
1:20 pm - 6:45 pm
YOW
-
SEA
8h 25m
1 stop
$458WestJet
Sat, Aug 8 - Sat, Aug 15
WestJet Logo
10:30 am - 12:30 pm
SEA
-
YOW
23h 00m
2 stops
WestJet Logo
1:20 pm - 6:45 pm
YOW
-
SEA
8h 25m
1 stop
$462WestJet
Fri, Jul 10 - Fri, Jul 17
WestJet Logo
7:00 am - 5:15 pm
SEA
-
YOW
7h 15m
1 stop
WestJet Logo
1:20 pm - 6:45 pm
YOW
-
SEA
8h 25m
1 stop
$463WestJet
Tue, Jul 14 - Sat, Aug 29
WestJet Logo
7:35 pm - 5:35 am
SEA
-
YOW
7h 00m
1 stop
WestJet Logo
1:20 pm - 6:45 pm
YOW
-
SEA
8h 25m
1 stop
$468WestJet
Sun, Aug 9 - Sat, Aug 15
WestJet Logo
10:30 am - 12:30 pm
SEA
-
YOW
23h 00m
2 stops
WestJet Logo
1:20 pm - 6:45 pm
YOW
-
SEA
8h 25m
1 stop
$470WestJet
Fri, Jul 10 - Fri, Jul 17
WestJet Logo
10:30 am - 12:20 am
SEA
-
YOW
10h 50m
2 stops
WestJet Logo
1:20 pm - 6:45 pm
YOW
-
SEA
8h 25m
1 stop
$471WestJet
Thu, Sep 3 - Mon, Sep 7

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

WestJet flights from Seattle to Ottawa

Our best WestJet deals on Seattle to Ottawa flight tickets
WestJet
Jul 10
SEA7:35 pmSeattle/Tacoma Intl
7h 00m
1 stop
YOW5:35 amOttawa
Jul 17
YOW1:20 pmOttawa
8h 25m
1 stop
SEA6:45 pmSeattle/Tacoma Intl
$437
WestJet
Sep 3
SEA7:00 amSeattle/Tacoma Intl
9h 20m
1 stop
YOW7:20 pmOttawa
Sep 7
YOW1:20 pmOttawa
8h 25m
1 stop
SEA6:45 pmSeattle/Tacoma Intl
$442
WestJet
Aug 10
SEA7:35 pmSeattle/Tacoma Intl
7h 00m
1 stop
YOW5:35 amOttawa
Aug 17
YOW1:20 pmOttawa
8h 25m
1 stop
SEA6:45 pmSeattle/Tacoma Intl
$445

Delta flights from Seattle to Ottawa

Our best Delta deals on Seattle to Ottawa flight tickets
Delta
Jun 30
SEA7:35 pmSeattle/Tacoma Intl
7h 00m
1 stop
YOW5:35 amOttawa
Jul 8
YOW1:20 pmOttawa
8h 25m
1 stop
SEA6:45 pmSeattle/Tacoma Intl
$1,347
Delta
Jun 29
SEA10:30 amSeattle/Tacoma Intl
11h 10m
1 stop
YOW12:40 amOttawa
Jul 8
YOW1:20 pmOttawa
8h 25m
1 stop
SEA6:45 pmSeattle/Tacoma Intl
$1,377
Delta
Jun 29
SEA11:59 pmSeattle/Tacoma Intl
14h 36m
2 stops
YOW5:35 pmOttawa
Jul 7
YOW1:20 pmOttawa
8h 25m
1 stop
SEA6:45 pmSeattle/Tacoma Intl
$1,389

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Ottawa that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated June 24, 2026.
Use the filters below to find and compare flights from Seattle to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Fri 7/10

7:35 pm-5:35 am

1 stop7h 00m

Ottawa

Fri 7/17

1:20 pm-6:45 pm

1 stop8h 25m

$437

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Thu 9/3

7:00 am-7:20 pm

1 stop9h 20m

Ottawa

Mon 9/7

1:20 pm-6:45 pm

1 stop8h 25m

$442

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Mon 8/10

7:35 pm-5:35 am

1 stop7h 00m

Ottawa

Mon 8/17

1:20 pm-6:45 pm

1 stop8h 25m

$445

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Mon 7/13

7:35 pm-5:35 am

1 stop7h 00m

Ottawa

Thu 8/27

1:20 pm-6:45 pm

1 stop8h 25m

$456

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Sat 8/8

7:00 am-5:15 pm

1 stop7h 15m

Ottawa

Sat 8/15

1:20 pm-6:45 pm

1 stop8h 25m

$458

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Fri 7/10

10:30 am-12:30 pm

2 stops23h 00m

Ottawa

Fri 7/17

1:20 pm-6:45 pm

1 stop8h 25m

$462

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Tue 7/14

7:00 am-5:15 pm

1 stop7h 15m

Ottawa

Sat 8/29

1:20 pm-6:45 pm

1 stop8h 25m

$463

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Sun 8/9

7:35 pm-5:35 am

1 stop7h 00m

Ottawa

Sat 8/15

1:20 pm-6:45 pm

1 stop8h 25m

$468

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Fri 7/10

10:30 am-12:30 pm

2 stops23h 00m

Ottawa

Fri 7/17

1:20 pm-6:45 pm

1 stop8h 25m

$470

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Thu 9/3

10:30 am-12:20 am

2 stops10h 50m

Ottawa

Mon 9/7

1:20 pm-6:45 pm

1 stop8h 25m

$471

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Ottawa from

How to get the cheapest flight ticket from Seattle to Ottawa

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Seattle and Ottawa?

What is the cheapest month to fly to Ottawa?

In general, March is the cheapest month to fly from Seattle to Ottawa. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. The month of April is another great option to travel to Ottawa, with average flight prices from Seattle averaging around $354.

Can stopping save me money on Seattle to Ottawa flights?

You could potentially save up to 30% on your flight if you consider stops on a Seattle to Ottawa flight.

How have Seattle to Ottawa flight prices changed over time?

When to book flights from Seattle to Ottawa

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Ottawa according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Ottawa (SEA to YOW) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Ottawa

Fastest flight time

7h 00m

Direct flights

None
The fastest flight from Seattle to Ottawa takes 7h 00m
There are no direct flights from Seattle to Ottawa. There are no popular flight routes from Seattle to Ottawa.
Search flight deals

Frequently asked questions about flying from Seattle to Ottawa

  • How far is Seattle/Tacoma Intl to Ottawa by plane?

    Seattle/Tacoma Intl and Ottawa are 2187.8 mi apart from one another. 7h 00m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Ottawa Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Ottawa Airport are updated daily.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Ottawa Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Ottawa Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Ottawa Airport.

  • What documentation or ID do you need to fly to Ottawa Airport?

    The required travel and health documents for your Ottawa Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ottawa Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Seattle to Ottawa?

Best airlines flying from Seattle to Ottawa

Compare and see reviews for airlines that fly from Seattle to Ottawa with momondo
Airline
Rating
Free Cancellation
Price
WestJetPriceFrom $266Free CancellationRating
7.2
3,384 reviews
Search WestJet flights
Air CanadaPriceFrom $357Free CancellationRating
7.1
11,251 reviews
Search Air Canada flights
United AirlinesPriceFrom $368Free CancellationRating
7.4
9,884 reviews
Search United Airlines flights

Traveling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Pembroke
Brockville
Petawawa
Smiths Falls
Perth
Calabogie
Prescott
Winchester
Wakefield

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Ottawa?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Ottawa for you.

Can I find flights from Seattle to Ottawa with flexible booking policies on momondo?

Flights from Seattle to Ottawa with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Seattle to Ottawa?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seattle to Ottawa.

I’m not ready to book a flight from Seattle to Ottawa right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Seattle to Ottawa now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ottawa and let you know when they change.

An easier way to manage your Ottawa trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 7/24
Fri 7/31
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Canada