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Cheap flights from Seattle to Ottawa from $195

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 5/14. 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

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Find the cheapest flights from Seattle to Ottawa

Cheap round-trip flights

Enter your travel dates to find the best prices.
WestJet Logo
10:30 am - 12:20 am
SEA
-
YOW
10h 50m
2 stops
WestJet Logo
6:55 am - 6:45 pm
YOW
-
SEA
14h 50m
2 stops
$364WestJet
Tue, May 26 - Tue, Jun 2
WestJet Logo
7:35 pm - 5:35 am
SEA
-
YOW
7h 00m
1 stop
WestJet Logo
6:55 am - 6:45 pm
YOW
-
SEA
14h 50m
2 stops
$374WestJet
Tue, May 26 - Tue, Jun 2
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
$383WestJet
Mon, Apr 27 - Tue, May 5
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
$387WestJet
Tue, May 26 - Tue, Jun 2
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
$389WestJet
Mon, May 4 - Mon, May 11
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
$391WestJet
Fri, May 1 - Tue, May 5
WestJet Logo
3:10 pm - 6:23 pm
SEA
-
YOW
24h 13m
2 stops
WestJet Logo
6:00 am - 2:19 pm
YOW
-
SEA
11h 19m
1 stop
$394WestJet
Thu, Apr 16 - Tue, Apr 21
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
$397WestJet
Fri, May 29 - Tue, Jun 16
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
$398WestJet
Fri, May 1 - Tue, May 5
WestJet Logo
3:10 pm - 4:53 pm
SEA
-
YOW
22h 43m
1 stop
WestJet Logo
5:40 am - 2:19 pm
YOW
-
SEA
11h 39m
2 stops
$400WestJet
Mon, Apr 13 - Sun, Apr 19

WestJet flights from Seattle to Ottawa

Our best WestJet deals on Seattle to Ottawa flight tickets
WestJet
May 26
SEA10:30 amSeattle/Tacoma Intl
10h 50m
2 stops
YOW12:20 amOttawa
Jun 2
YOW6:55 amOttawa
14h 50m
2 stops
SEA6:45 pmSeattle/Tacoma Intl
$364
WestJet
May 26
SEA7:35 pmSeattle/Tacoma Intl
7h 00m
1 stop
YOW5:35 amOttawa
Jun 2
YOW6:55 amOttawa
14h 50m
2 stops
SEA6:45 pmSeattle/Tacoma Intl
$374
WestJet
Apr 27
SEA7:35 pmSeattle/Tacoma Intl
7h 00m
1 stop
YOW5:35 amOttawa
May 5
YOW1:20 pmOttawa
8h 25m
1 stop
SEA6:45 pmSeattle/Tacoma Intl
$383

American Airlines flights from Seattle to Ottawa

Our best American Airlines deals on Seattle to Ottawa flight tickets
American Airlines
Mar 29
SEA7:20 amSeattle/Tacoma Intl
14h 18m
2 stops
YOW12:38 amOttawa
Apr 1
YOW10:00 amOttawa
16h 04m
3 stops
SEA11:04 pmSeattle/Tacoma Intl
$1,340
American Airlines
Mar 28
SEA12:07 amSeattle/Tacoma Intl
13h 41m
3 stops
YOW4:48 pmOttawa
Apr 1
YOW10:00 amOttawa
16h 04m
3 stops
SEA11:04 pmSeattle/Tacoma Intl
$1,362
American Airlines
Mar 28
SEA12:07 amSeattle/Tacoma Intl
13h 41m
3 stops
YOW4:48 pmOttawa
Mar 31
YOW6:45 amOttawa
14h 44m
2 stops
SEA6:29 pmSeattle/Tacoma Intl
$1,551

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 March 28, 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

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Tue 5/26

10:30 am-12:20 am

2 stops10h 50m

Ottawa

Tue 6/2

6:55 am-6:45 pm

2 stops14h 50m

$364

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Tue 5/26

7:35 pm-5:35 am

1 stop7h 00m

Ottawa

Tue 6/2

6:55 am-6:45 pm

2 stops14h 50m

$374
Quickest round-trip

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Mon 4/27

7:35 pm-5:35 am

1 stop7h 00m

Ottawa

Tue 5/5

1:20 pm-6:45 pm

1 stop8h 25m

$383

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Tue 5/26

7:35 pm-5:35 am

1 stop7h 00m

Ottawa

Tue 6/2

1:20 pm-6:45 pm

1 stop8h 25m

$387

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Mon 5/4

7:35 pm-5:35 am

1 stop7h 00m

Ottawa

Mon 5/11

1:20 pm-6:45 pm

1 stop8h 25m

$389

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Fri 5/1

7:35 pm-5:35 am

1 stop7h 00m

Ottawa

Tue 5/5

1:20 pm-6:45 pm

1 stop8h 25m

$391

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Thu 4/16

3:10 pm-6:23 pm

2 stops24h 13m

Ottawa

Tue 4/21

6:00 am-2:19 pm

1 stop11h 19m

$394

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Fri 5/29

7:35 pm-5:35 am

1 stop7h 00m

Ottawa

Tue 6/16

1:20 pm-6:45 pm

1 stop8h 25m

$397

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Fri 5/1

10:30 am-12:20 am

2 stops10h 50m

Ottawa

Tue 5/5

1:20 pm-6:45 pm

1 stop8h 25m

$398

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Mon 4/13

3:10 pm-4:53 pm

1 stop22h 43m

Ottawa

Sun 4/19

5:40 am-2:19 pm

2 stops11h 39m

$400

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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, October 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 $393. The month of February is another great option to travel to Ottawa, with average flight prices from Seattle averaging around $394.

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

You are more likely to see cheaper flights to Ottawa from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Ottawa for around $488 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ottawa from Seattle for as low as $240 on momondo.

Can stopping save me money on Seattle to Ottawa flights?

You could potentially save up to 43% 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

  • 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
United AirlinesPriceFrom $238Free CancellationRating
7.4
9,499 reviews
Search United Airlines flights
WestJetPriceFrom $266Free CancellationRating
7.2
3,303 reviews
Search WestJet flights
Air CanadaPriceFrom $354Free CancellationRating
7.1
10,853 reviews
Search Air Canada flights

Traveling to a place near Ottawa?

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

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