What is the cheapest airline that flies from Seattle/Tacoma Intl to Ottawa?

WestJet and American Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Ottawa

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 refresh daily.

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 travel and health documents required for your trip to Ottawa Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ottawa Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

C$ 220 Cheap Flights from Seattle to Ottawa in 2025/26

1 adult

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Find the cheapest flights from Seattle to Ottawa

Round-trip

One-way

Last minute

Cheap round-trip flights

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3:10 p.m. - 6:21 p.m.SEA-YOW

24h 11m2 stops

5:40 a.m. - 2:20 p.m.YOW-SEA

11h 40m2 stops

C$ 345WestJet

Find Deal

Thu, 8 Jan - Wed, 21 Jan

3:10 p.m. - 4:53 p.m.SEA-YOW

22h 43m1 stop

5:40 a.m. - 2:19 p.m.YOW-SEA

11h 39m2 stops

C$ 349WestJet

Find Deal

Mon, 9 Feb - Tue, 31 Mar

3:10 p.m. - 4:53 p.m.SEA-YOW

22h 43m1 stop

5:40 a.m. - 2:19 p.m.YOW-SEA

11h 39m2 stops

C$ 374WestJet

Find Deal

Sun, 1 Mar - Fri, 27 Mar

3:10 p.m. - 6:21 p.m.SEA-YOW

24h 11m2 stops

5:45 p.m. - 2:20 p.m.YOW-SEA

23h 35m1 stop

C$ 377WestJet

Find Deal

Thu, 8 Jan - Wed, 21 Jan

3:10 p.m. - 6:23 p.m.SEA-YOW

24h 13m2 stops

5:40 a.m. - 2:19 p.m.YOW-SEA

11h 39m2 stops

C$ 378WestJet

Find Deal

Thu, 26 Feb - Wed, 25 Mar

3:10 p.m. - 4:53 p.m.SEA-YOW

22h 43m1 stop

5:45 p.m. - 2:20 p.m.YOW-SEA

23h 35m1 stop

C$ 381WestJet

Find Deal

Thu, 8 Jan - Wed, 21 Jan

8:00 p.m. - 6:43 a.m.SEA-YOW

7h 43m1 stop

5:45 a.m. - 2:31 p.m.YOW-SEA

11h 46m2 stops

C$ 389Air Canada

Find Deal

Wed, 21 Jan - Fri, 23 Jan

10:05 a.m. - 1:38 a.m.SEA-YOW

12h 33m2 stops

5:45 a.m. - 2:31 p.m.YOW-SEA

11h 46m2 stops

C$ 406Air Canada

Find Deal

Wed, 21 Jan - Fri, 23 Jan

11:10 p.m. - 8:04 p.m.SEA-YOW

17h 54m1 stop

5:40 a.m. - 2:19 p.m.YOW-SEA

11h 39m2 stops

C$ 434Multiple Airlines

Find Deal

Wed, 18 Feb - Mon, 23 Mar

5:50 a.m. - 3:45 p.m.SEA-YOW

6h 55m1 stop

5:50 p.m. - 10:08 p.m.YOW-SEA

7h 18m1 stop

C$ 509Air Canada

Find Deal

Sat, 7 Feb - Wed, 1 Apr

WestJet flights from Seattle to Ottawa

Our best WestJet deals on Seattle to Ottawa flight tickets

WestJet

8 Jan

SEA3:10 p.m.Seattle/Tacoma Intl

24h 11m

2 stops

YOW6:21 p.m.Ottawa

21 Jan

YOW5:40 a.m.Ottawa

11h 40m

2 stops

SEA2:20 p.m.Seattle/Tacoma Intl

C$ 345

Find similar

WestJet

9 Feb

SEA3:10 p.m.Seattle/Tacoma Intl

22h 43m

1 stop

YOW4:53 p.m.Ottawa

31 Mar

YOW5:40 a.m.Ottawa

11h 39m

2 stops

SEA2:19 p.m.Seattle/Tacoma Intl

C$ 349

Find similar

WestJet

1 Mar

SEA3:10 p.m.Seattle/Tacoma Intl

22h 43m

1 stop

YOW4:53 p.m.Ottawa

27 Mar

YOW5:40 a.m.Ottawa

11h 39m

2 stops

SEA2:19 p.m.Seattle/Tacoma Intl

C$ 374

Find similar

Air Canada flights from Seattle to Ottawa

Our best Air Canada deals on Seattle to Ottawa flight tickets

Air Canada

21 Jan

SEA8:00 p.m.Seattle/Tacoma Intl

7h 43m

1 stop

YOW6:43 a.m.Ottawa

23 Jan

YOW5:45 a.m.Ottawa

11h 46m

2 stops

SEA2:31 p.m.Seattle/Tacoma Intl

C$ 389

Find similar

Air Canada

21 Jan

SEA10:05 a.m.Seattle/Tacoma Intl

12h 33m

2 stops

YOW1:38 a.m.Ottawa

23 Jan

YOW5:45 a.m.Ottawa

11h 46m

2 stops

SEA2:31 p.m.Seattle/Tacoma Intl

C$ 406

Find similar

Air Canada

7 Feb

SEA5:50 a.m.Seattle/Tacoma Intl

6h 55m

1 stop

YOW3:45 p.m.Ottawa

1 Apr

YOW5:50 p.m.Ottawa

7h 18m

1 stop

SEA10:08 p.m.Seattle/Tacoma Intl

C$ 509

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Thu 8/1

3:10 p.m.-6:21 p.m.

2 stops24h 11m

Ottawa

Wed 21/1

5:40 a.m.-2:20 p.m.

2 stops11h 40m

C$ 345

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Mon 9/2

3:10 p.m.-4:53 p.m.

1 stop22h 43m

Ottawa

Tue 31/3

5:40 a.m.-2:19 p.m.

2 stops11h 39m

C$ 349

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Sun 1/3

3:10 p.m.-4:53 p.m.

1 stop22h 43m

Ottawa

Fri 27/3

5:40 a.m.-2:19 p.m.

2 stops11h 39m

C$ 374

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Thu 8/1

3:10 p.m.-6:21 p.m.

2 stops24h 11m

Ottawa

Wed 21/1

5:45 p.m.-2:20 p.m.

1 stop23h 35m

C$ 377

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Thu 26/2

3:10 p.m.-6:23 p.m.

2 stops24h 13m

Ottawa

Wed 25/3

5:40 a.m.-2:19 p.m.

2 stops11h 39m

C$ 378

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Thu 8/1

3:10 p.m.-4:53 p.m.

1 stop22h 43m

Ottawa

Wed 21/1

5:45 p.m.-2:20 p.m.

1 stop23h 35m

C$ 381

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Wed 21/1

8:00 p.m.-6:43 a.m.

1 stop7h 43m

Ottawa

Fri 23/1

5:45 a.m.-2:31 p.m.

2 stops11h 46m

C$ 389

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Wed 21/1

10:05 a.m.-1:38 a.m.

2 stops12h 33m

Ottawa

Fri 23/1

5:45 a.m.-2:31 p.m.

2 stops11h 46m

C$ 406

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Wed 18/2

11:10 p.m.-8:04 p.m.

1 stop17h 54m

Ottawa

Mon 23/3

5:40 a.m.-2:19 p.m.

2 stops11h 39m

C$ 434

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Sat 7/2

5:50 a.m.-3:45 p.m.

1 stop6h 55m

Ottawa

Wed 1/4

5:50 p.m.-10:08 p.m.

1 stop7h 18m

C$ 509

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest month to fly to Ottawa?

The month of October is, on average, the cheapest month to fly to Ottawa from Seattle, with most prices found around C$ 551. If you aren’t able to travel to Ottawa during the month of October, then flying in August is also cheap. Prices for this month can be found on momondo for an average of C$ 579.

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 C$ 704 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 C$ 375 on momondo.

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

Direct flights	None

There are no direct flights from Seattle to Ottawa. There are no popular flight routes from Seattle to Ottawa.

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How far is Seattle/Tacoma Intl to Ottawa by plane?
There are 3521.0 km between Seattle/Tacoma Intl and Ottawa. Typically, this will take 6h 55m by plane in normal conditions.
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 refresh daily.
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 travel and health documents required for your trip to Ottawa Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ottawa Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Gatineau

Pembroke

Brockville

Smiths Falls

Perth

Wakefield

Calabogie

Prescott

Petawawa

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to Ottawa . Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from Seattle to Ottawa on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Seattle and Ottawa by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to Ottawa from Seattle. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.