What is the cheapest airline that flies from Washington to Ottawa?

WestJet, Air Canada, and American Airlines are the most popular carriers operating from Washington to Ottawa

How long does it take to fly to Ottawa?

Flight times from State of Washington to Ottawa vary, but if you’re flying out of Seattle and flying into Montreal Pierre Elliott Trudeau Intl Airport (one of the most popular routes), then the duration is 5h 09m on average. Another popular route from State of Washington to Ottawa is flying from Pasco to Montreal Pierre Elliott Trudeau Intl Airport, which will take roughly 26h 37m. Keep in mind that layovers or delays could extend your travel time.

When did momondo last update prices for flights from Washington to Ottawa Airport?

Prices for flights from Washington to Ottawa Airport refresh daily.

How old do you have to be to fly from Washington to Ottawa Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington to Ottawa Airport.

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

The travel and health documents you'll need for your trip to Ottawa Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ottawa Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

C$ 216 Cheap Flights from Washington to Ottawa in 2025/26

1 adult

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Early arrival? Instantly customize your results

Trusted and free

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

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Washington to Ottawa

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

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

22h 43m1 stop

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

11h 40m2 stops

C$ 391WestJet

Find Deal

Wed, 21 Jan - Wed, 28 Jan

3:10 p.m. - 12:42 a.m.SEA-YOW

30h 32m2 stops

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

11h 40m2 stops

C$ 398WestJet

Find Deal

Wed, 21 Jan - Wed, 28 Jan

11:05 p.m. - 2:44 p.m.SEA-YOW

12h 39m1 stop

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

11h 39m2 stops

C$ 419Multiple Airlines

Find Deal

Sat, 7 Feb - Thu, 26 Feb

11:05 p.m. - 2:44 p.m.SEA-YOW

12h 39m1 stop

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

11h 19m1 stop

C$ 449Multiple Airlines

Find Deal

Sat, 7 Feb - Thu, 26 Feb

11:59 p.m. - 10:26 a.m.SEA-YOW

7h 27m1 stop

2:15 p.m. - 8:35 p.m.YOW-SEA

9h 20m1 stop

C$ 492United Airlines

Find Deal

Tue, 10 Mar - Wed, 11 Mar

12:45 p.m. - 10:26 a.m.SEA-YOW

18h 41m2 stops

2:15 p.m. - 8:35 p.m.YOW-SEA

9h 20m1 stop

C$ 501United Airlines

Find Deal

Tue, 10 Mar - Wed, 11 Mar

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

7h 43m1 stop

7:45 a.m. - 2:31 p.m.YOW-SEA

9h 46m1 stop

C$ 512Air Canada

Find Deal

Thu, 12 Feb - Thu, 26 Feb

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

6h 55m1 stop

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

11h 46m2 stops

C$ 519Air Canada

Find Deal

Mon, 12 Jan - Sun, 18 Jan

6:05 a.m. - 12:39 a.m.SEA-YOW

15h 34m2 stops

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

11h 40m2 stops

C$ 598Delta

Find Deal

Wed, 11 Feb - Tue, 24 Feb

12:32 a.m. - 12:40 a.m.PDX-YOW

21h 08m2 stops

5:40 a.m. - 10:19 p.m.YOW-PDX

19h 39m2 stops

C$ 1,275Delta

Find Deal

Wed, 3 Dec - Thu, 11 Dec

WestJet flights from State of Washington to Ottawa

Our best WestJet deals on State of Washington to Ottawa flight tickets

WestJet

21 Jan

SEA3:10 p.m.Seattle/Tacoma Intl

22h 43m

1 stop

YOW4:53 p.m.Ottawa

28 Jan

YOW5:40 a.m.Ottawa

11h 40m

2 stops

SEA2:20 p.m.Seattle/Tacoma Intl

C$ 391

Find similar

WestJet

21 Jan

SEA3:10 p.m.Seattle/Tacoma Intl

30h 32m

2 stops

YOW12:42 a.m.Ottawa

28 Jan

YOW5:40 a.m.Ottawa

11h 40m

2 stops

SEA2:20 p.m.Seattle/Tacoma Intl

C$ 398

Find similar

WestJet

8 Feb

SEA3:10 p.m.Seattle/Tacoma Intl

22h 43m

1 stop

YOW4:53 p.m.Ottawa

25 Feb

YOW5:40 a.m.Ottawa

11h 39m

2 stops

SEA2:19 p.m.Seattle/Tacoma Intl

C$ 406

Find similar

Air Canada flights from State of Washington to Ottawa

Our best Air Canada deals on State of Washington to Ottawa flight tickets

Air Canada

12 Feb

SEA8:00 p.m.Seattle/Tacoma Intl

7h 43m

1 stop

YOW6:43 a.m.Ottawa

26 Feb

YOW7:45 a.m.Ottawa

9h 46m

1 stop

SEA2:31 p.m.Seattle/Tacoma Intl

C$ 512

Find similar

Air Canada

12 Jan

SEA5:50 a.m.Seattle/Tacoma Intl

6h 55m

1 stop

YOW3:45 p.m.Ottawa

18 Jan

YOW5:45 a.m.Ottawa

11h 46m

2 stops

SEA2:31 p.m.Seattle/Tacoma Intl

C$ 519

Find similar

Air Canada

11 Feb

SEA8:10 a.m.Seattle/Tacoma Intl

7h 28m

1 stop

YOW6:38 p.m.Ottawa

26 Feb

YOW7:45 a.m.Ottawa

9h 46m

1 stop

SEA2:31 p.m.Seattle/Tacoma Intl

C$ 521

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Wed 21/1

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

1 stop22h 43m

Ottawa

Wed 28/1

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

2 stops11h 40m

C$ 391

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Wed 21/1

3:10 p.m.-12:42 a.m.

2 stops30h 32m

Ottawa

Wed 28/1

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

2 stops11h 40m

C$ 398

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Sat 7/2

11:05 p.m.-2:44 p.m.

1 stop12h 39m

Ottawa

Thu 26/2

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

2 stops11h 39m

C$ 419

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Sat 7/2

11:05 p.m.-2:44 p.m.

1 stop12h 39m

Ottawa

Thu 26/2

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

1 stop11h 19m

C$ 449

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Tue 10/3

11:59 p.m.-10:26 a.m.

1 stop7h 27m

Ottawa

Wed 11/3

2:15 p.m.-8:35 p.m.

1 stop9h 20m

C$ 492

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Tue 10/3

12:45 p.m.-10:26 a.m.

2 stops18h 41m

Ottawa

Wed 11/3

2:15 p.m.-8:35 p.m.

1 stop9h 20m

C$ 501

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Thu 12/2

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

1 stop7h 43m

Ottawa

Thu 26/2

7:45 a.m.-2:31 p.m.

1 stop9h 46m

C$ 512

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Mon 12/1

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

1 stop6h 55m

Ottawa

Sun 18/1

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

2 stops11h 46m

C$ 519

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Wed 11/2

6:05 a.m.-12:39 a.m.

2 stops15h 34m

Ottawa

Tue 24/2

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

2 stops11h 40m

C$ 598

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Wed 3/12

12:32 a.m.-12:40 a.m.

2 stops21h 08m

Ottawa

Thu 11/12

5:40 a.m.-10:19 p.m.

2 stops19h 39m

C$ 1,275

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 State of Washington 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

Other information

What is the cheapest month to fly to Ottawa?

The month of October is, on average, the cheapest month to fly to Ottawa from State of Washington, with most prices found around C$ 554. 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$ 583.

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

You are more likely to see cheaper flights to Ottawa from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Ottawa for around C$ 709 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ottawa from State of Washington for as low as C$ 378 on momondo.

Cheap State of Washington to Ottawa flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Ottawa

Direct flights	None

There are no direct flights from State of Washington to Ottawa. There are no popular flight routes from State of Washington to Ottawa.

Search flight deals

When did momondo last update prices for flights from Washington to Ottawa Airport?
Prices for flights from Washington to Ottawa Airport refresh daily.
How old do you have to be to fly from Washington to Ottawa Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington to Ottawa Airport.
What documentation or ID do you need to fly to Ottawa Airport?
The travel and health documents you'll need for your trip to Ottawa Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ottawa Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Gatineau

Pembroke

Brockville

Smiths Falls

Perth

Wakefield

Calabogie

Prescott

Petawawa

Why use momondo?

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

It is quick and easy to find Washington to Ottawa flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ottawa that suits you.

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

momondo does allow users to show only those flights to Ottawa from Washington which offer a flexible booking policy as well as other useful filters and features.

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

momondo helps you find the best flight between Washington 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 Washington to Ottawa right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Washington to Ottawa flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.