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

United Airlines, Air Canada, and WestJet 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 13m 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 14h 38m. 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$ 172 Cheap Flights from Washington to Ottawa in 2025/26

1 adult

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Find the cheapest flights from Washington to Ottawa

Round-trip

One-way

Last minute

Cheap round-trip flights

11:50 p.m. - 10:07 a.m.SEA-YOW

7h 17m1 stop

2:05 p.m. - 12:51 a.m.YOW-SEA

13h 46m2 stops

C$ 329United Airlines

Find Deal

Tue, 10 Mar - Wed, 11 Mar

1:55 p.m. - 10:07 a.m.SEA-YOW

17h 12m2 stops

2:05 p.m. - 12:51 a.m.YOW-SEA

13h 46m2 stops

C$ 338United Airlines

Find Deal

Tue, 10 Mar - Wed, 11 Mar

6:31 a.m. - 4:50 p.m.SEA-YOW

7h 19m1 stop

4:10 p.m. - 10:16 p.m.YOW-SEA

9h 06m1 stop

C$ 349United Airlines

Find Deal

Tue, 10 Mar - Wed, 11 Mar

12:46 p.m. - 10:07 a.m.SEA-YOW

18h 21m2 stops

4:10 p.m. - 10:16 p.m.YOW-SEA

9h 06m1 stop

C$ 356United Airlines

Find Deal

Tue, 10 Mar - Wed, 11 Mar

1:50 p.m. - 12:40 a.m.SEA-YOW

7h 50m1 stop

5:55 a.m. - 12:59 p.m.YOW-SEA

10h 04m2 stops

C$ 365WestJet

Find Deal

Sat, 11 Oct - Wed, 15 Oct

8:40 a.m. - 4:19 p.m.SEA-YOW

28h 39m2 stops

5:55 a.m. - 12:59 p.m.YOW-SEA

10h 04m2 stops

C$ 368WestJet

Find Deal

Sat, 11 Oct - Wed, 15 Oct

7:40 p.m. - 8:23 a.m.PDX-YOW

9h 43m1 stop

6:00 p.m. - 11:01 p.m.YOW-PDX

8h 01m1 stop

C$ 433Air Canada

Find Deal

Sat, 11 Oct - Sat, 18 Oct

12:00 p.m. - 12:19 a.m.SEA-YOW

9h 19m1 stop

6:00 p.m. - 10:31 p.m.YOW-SEA

7h 31m1 stop

C$ 491Air Canada

Find Deal

Sat, 11 Oct - Wed, 15 Oct

8:40 a.m. - 6:45 a.m.SEA-YOW

19h 05m1 stop

6:30 p.m. - 12:31 p.m.YOW-SEA

21h 01m1 stop

C$ 522

Find Deal

Wed, 1 Oct - Mon, 6 Oct

8:40 a.m. - 1:03 p.m.SEA-YOW

25h 23m2 stops

8:45 a.m. - 6:27 p.m.YOW-SEA

12h 42m1 stop

C$ 526

Find Deal

Thu, 9 Oct - Sun, 12 Oct

Air Canada flights from State of Washington to Ottawa

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

Air Canada

11 Oct

PDX7:40 p.m.Portland

9h 43m

1 stop

YOW8:23 a.m.Ottawa

18 Oct

YOW6:00 p.m.Ottawa

8h 01m

1 stop

PDX11:01 p.m.Portland

C$ 433

Find similar

Air Canada

11 Oct

SEA12:00 p.m.Seattle/Tacoma Intl

9h 19m

1 stop

YOW12:19 a.m.Ottawa

15 Oct

YOW6:00 p.m.Ottawa

7h 31m

1 stop

SEA10:31 p.m.Seattle/Tacoma Intl

C$ 491

Find similar

Air Canada

29 Sep

SEA2:55 p.m.Seattle/Tacoma Intl

14h 28m

1 stop

YOW8:23 a.m.Ottawa

30 Sep

YOW2:40 p.m.Ottawa

7h 51m

1 stop

SEA7:31 p.m.Seattle/Tacoma Intl

C$ 514

Find similar

United Airlines flights from State of Washington to Ottawa

Our best United Airlines deals on State of Washington to Ottawa flight tickets

United Airlines

10 Mar

SEA11:50 p.m.Seattle/Tacoma Intl

7h 17m

1 stop

YOW10:07 a.m.Ottawa

11 Mar

YOW2:05 p.m.Ottawa

13h 46m

2 stops

SEA12:51 a.m.Seattle/Tacoma Intl

C$ 329

Find similar

United Airlines

10 Mar

SEA1:55 p.m.Seattle/Tacoma Intl

17h 12m

2 stops

YOW10:07 a.m.Ottawa

11 Mar

YOW2:05 p.m.Ottawa

13h 46m

2 stops

SEA12:51 a.m.Seattle/Tacoma Intl

C$ 338

Find similar

United Airlines

10 Mar

SEA6:31 a.m.Seattle/Tacoma Intl

7h 19m

1 stop

YOW4:50 p.m.Ottawa

11 Mar

YOW4:10 p.m.Ottawa

9h 06m

1 stop

SEA10:16 p.m.Seattle/Tacoma Intl

C$ 349

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Tue 10/3

11:50 p.m.-10:07 a.m.

1 stop7h 17m

Ottawa

Wed 11/3

2:05 p.m.-12:51 a.m.

2 stops13h 46m

C$ 329

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Tue 10/3

1:55 p.m.-10:07 a.m.

2 stops17h 12m

Ottawa

Wed 11/3

2:05 p.m.-12:51 a.m.

2 stops13h 46m

C$ 338

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Tue 10/3

6:31 a.m.-4:50 p.m.

1 stop7h 19m

Ottawa

Wed 11/3

4:10 p.m.-10:16 p.m.

1 stop9h 06m

C$ 349

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Tue 10/3

12:46 p.m.-10:07 a.m.

2 stops18h 21m

Ottawa

Wed 11/3

4:10 p.m.-10:16 p.m.

1 stop9h 06m

C$ 356

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Sat 11/10

1:50 p.m.-12:40 a.m.

1 stop7h 50m

Ottawa

Wed 15/10

5:55 a.m.-12:59 p.m.

2 stops10h 04m

C$ 365

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Sat 11/10

8:40 a.m.-4:19 p.m.

2 stops28h 39m

Ottawa

Wed 15/10

5:55 a.m.-12:59 p.m.

2 stops10h 04m

C$ 368

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Sat 11/10

7:40 p.m.-8:23 a.m.

1 stop9h 43m

Ottawa

Sat 18/10

6:00 p.m.-11:01 p.m.

1 stop8h 01m

C$ 433

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Sat 11/10

12:00 p.m.-12:19 a.m.

1 stop9h 19m

Ottawa

Wed 15/10

6:00 p.m.-10:31 p.m.

1 stop7h 31m

C$ 491

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Wed 1/10

8:40 a.m.-6:45 a.m.

1 stop19h 05m

Ottawa

Mon 6/10

6:30 p.m.-12:31 p.m.

1 stop21h 01m

C$ 522

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Thu 9/10

8:40 a.m.-1:03 p.m.

2 stops25h 23m

Ottawa

Sun 12/10

8:45 a.m.-6:27 p.m.

1 stop12h 42m

C$ 526

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 September is, on average, the cheapest month to fly to Ottawa from State of Washington, with most prices found around C$ 555. If you aren’t able to travel to Ottawa during the month of September, then flying in August is also cheap. Prices for this month can be found on momondo for an average of C$ 572.

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$ 706 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$ 371 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.

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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.

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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.