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

WestJet is the most popular carrier 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$ 258 Cheap Flights from Seattle to Ottawa in 2026

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

Prices are currently low for flights on this route. Typical prices usually range from C$ 867 to C$ 625. The lowest price recently found on this route was C$ 528.

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Find the cheapest flights from Seattle to Ottawa

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:35 p.m. - 5:35 a.m.

SEA

YOW

7h 00m

1 stop

1:20 p.m. - 6:45 p.m.

YOW

SEA

8h 25m

1 stop

C$ 528WestJet

Mon, 27 Apr - Tue, 5 May

7:35 p.m. - 5:35 a.m.

SEA

YOW

7h 00m

1 stop

1:20 p.m. - 6:45 p.m.

YOW

SEA

8h 25m

1 stop

C$ 536WestJet

Mon, 4 May - Mon, 11 May

7:35 p.m. - 5:35 a.m.

SEA

YOW

7h 00m

1 stop

1:20 p.m. - 6:45 p.m.

YOW

SEA

8h 25m

1 stop

C$ 539WestJet

Fri, 1 May - Tue, 5 May

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

SEA

YOW

24h 13m

2 stops

9:00 a.m. - 2:19 p.m.

YOW

SEA

32h 19m

2 stops

C$ 542WestJet

Thu, 9 Apr - Mon, 13 Apr

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

SEA

YOW

24h 13m

2 stops

6:00 a.m. - 2:19 p.m.

YOW

SEA

11h 19m

1 stop

C$ 543WestJet

Thu, 16 Apr - Mon, 20 Apr

7:35 p.m. - 5:35 a.m.

SEA

YOW

7h 00m

1 stop

1:20 p.m. - 6:45 p.m.

YOW

SEA

8h 25m

1 stop

C$ 547WestJet

Fri, 29 May - Tue, 16 Jun

10:30 a.m. - 12:20 a.m.

SEA

YOW

10h 50m

2 stops

1:20 p.m. - 6:45 p.m.

YOW

SEA

8h 25m

1 stop

C$ 549WestJet

Fri, 1 May - Tue, 5 May

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

SEA

YOW

22h 43m

1 stop

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

YOW

SEA

11h 39m

2 stops

C$ 552WestJet

Mon, 13 Apr - Sun, 19 Apr

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

SEA

YOW

24h 13m

2 stops

4:15 p.m. - 9:40 a.m.

YOW

SEA

20h 25m

1 stop

C$ 556WestJet

Thu, 23 Apr - Thu, 30 Apr

8:41 a.m. - 2:44 p.m.

SEA

YOW

27h 03m

1 stop

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

YOW

SEA

11h 39m

2 stops

C$ 557Multiple Airlines

Wed, 15 Apr - Mon, 20 Apr

WestJet flights from Seattle to Ottawa

Our best WestJet deals on Seattle to Ottawa flight tickets

WestJet

27 Apr

SEA7:35 p.m.Seattle/Tacoma Intl

7h 00m

1 stop

YOW5:35 a.m.Ottawa

5 May

YOW1:20 p.m.Ottawa

8h 25m

1 stop

SEA6:45 p.m.Seattle/Tacoma Intl

C$ 528

WestJet

4 May

SEA7:35 p.m.Seattle/Tacoma Intl

7h 00m

1 stop

YOW5:35 a.m.Ottawa

11 May

YOW1:20 p.m.Ottawa

8h 25m

1 stop

SEA6:45 p.m.Seattle/Tacoma Intl

C$ 536

WestJet

1 May

SEA7:35 p.m.Seattle/Tacoma Intl

7h 00m

1 stop

YOW5:35 a.m.Ottawa

5 May

YOW1:20 p.m.Ottawa

8h 25m

1 stop

SEA6:45 p.m.Seattle/Tacoma Intl

C$ 539

American Airlines flights from Seattle to Ottawa

Our best American Airlines deals on Seattle to Ottawa flight tickets

American Airlines

31 Mar

SEA10:16 p.m.Seattle/Tacoma Intl

15h 35m

2 stops

YOW4:51 p.m.Ottawa

1 May

YOW8:40 a.m.Ottawa

15h 43m

2 stops

SEA9:23 p.m.Seattle/Tacoma Intl

C$ 1,293

American Airlines

31 Mar

SEA10:16 p.m.Seattle/Tacoma Intl

15h 35m

2 stops

YOW4:51 p.m.Ottawa

1 May

YOW7:00 a.m.Ottawa

15h 28m

3 stops

SEA7:28 p.m.Seattle/Tacoma Intl

C$ 1,779

American Airlines

29 Mar

SEA7:20 a.m.Seattle/Tacoma Intl

14h 18m

2 stops

YOW12:38 a.m.Ottawa

1 Apr

YOW10:00 a.m.Ottawa

16h 04m

3 stops

SEA11:04 p.m.Seattle/Tacoma Intl

C$ 1,848

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Mon 27/4

7:35 p.m.-5:35 a.m.

1 stop7h 00m

Ottawa

Tue 5/5

1:20 p.m.-6:45 p.m.

1 stop8h 25m

C$ 528

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Mon 4/5

7:35 p.m.-5:35 a.m.

1 stop7h 00m

Ottawa

Mon 11/5

1:20 p.m.-6:45 p.m.

1 stop8h 25m

C$ 536

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Fri 1/5

7:35 p.m.-5:35 a.m.

1 stop7h 00m

Ottawa

Tue 5/5

1:20 p.m.-6:45 p.m.

1 stop8h 25m

C$ 539

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Thu 9/4

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

2 stops24h 13m

Ottawa

Mon 13/4

9:00 a.m.-2:19 p.m.

2 stops32h 19m

C$ 542

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Thu 16/4

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

2 stops24h 13m

Ottawa

Mon 20/4

6:00 a.m.-2:19 p.m.

1 stop11h 19m

C$ 543

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Fri 29/5

7:35 p.m.-5:35 a.m.

1 stop7h 00m

Ottawa

Tue 16/6

1:20 p.m.-6:45 p.m.

1 stop8h 25m

C$ 547

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Fri 1/5

10:30 a.m.-12:20 a.m.

2 stops10h 50m

Ottawa

Tue 5/5

1:20 p.m.-6:45 p.m.

1 stop8h 25m

C$ 549

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Mon 13/4

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

1 stop22h 43m

Ottawa

Sun 19/4

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

2 stops11h 39m

C$ 552

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Thu 23/4

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

2 stops24h 13m

Ottawa

Thu 30/4

4:15 p.m.-9:40 a.m.

1 stop20h 25m

C$ 556

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Wed 15/4

8:41 a.m.-2:44 p.m.

1 stop27h 03m

Ottawa

Mon 20/4

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

2 stops11h 39m

C$ 557

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

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$ 542. If you aren’t able to travel to Ottawa during the month of October, then flying in February is also cheap. Prices for this month can be found on momondo for an average of C$ 543.

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$ 673 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$ 331 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

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?
There are 3521.0 km between Seattle/Tacoma Intl and Ottawa. Typically, this will take 7h 00m 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

Brockville

Pembroke

Perth

Smiths Falls

Prescott

Wakefield

Calabogie

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.