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

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

What airlines fly to Ottawa?

Air Canada, United Airlines and WestJet are the top three most popular airlines that fly to Ottawa from State of Washington according to our data. Air Canada is the first choice among our users, with 68% of people opting to fly with this airline when traveling to Ottawa. Keep in mind that there are 5 different airlines that fly to Ottawa on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Ottawa?

Average flight duration from State of Washington to Ottawa depends on which airport you fly into and out of. Flying from Seattle to Montreal Pierre Elliott Trudeau Intl Airport is 5h 13m on average, while flying from Pasco to Montreal Pierre Elliott Trudeau Intl Airport is 14h 38m on average. Montreal Pierre Elliott Trudeau Intl Airport is the most popular airport in Ottawa.

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

Prices for flights from Washington to Ottawa Airport refresh daily.

How many operators does momondo search for flights from Washington to Ottawa Airport?

As of September 2025, there are 3 operators available to choose from for flights from Washington to Ottawa Airport.

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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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.

$125 Cheap Flights from Washington to Ottawa in 2025/26

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Find the cheapest flights from Washington to Ottawa

Round-trip

One-way

Last minute

Cheap round-trip flights

11:50 pm - 10:07 amSEA-YOW

7h 17m1 stop

2:05 pm - 12:51 amYOW-SEA

13h 46m2 stops

$238United Airlines

Find Deal

Tue, Mar 10 - Wed, Mar 11

1:55 pm - 10:07 amSEA-YOW

17h 12m2 stops

2:05 pm - 12:51 amYOW-SEA

13h 46m2 stops

$244United Airlines

Find Deal

Tue, Mar 10 - Wed, Mar 11

6:31 am - 4:50 pmSEA-YOW

7h 19m1 stop

4:10 pm - 10:16 pmYOW-SEA

9h 06m1 stop

$252United Airlines

Find Deal

Tue, Mar 10 - Wed, Mar 11

12:46 pm - 10:07 amSEA-YOW

18h 21m2 stops

4:10 pm - 10:16 pmYOW-SEA

9h 06m1 stop

$257United Airlines

Find Deal

Tue, Mar 10 - Wed, Mar 11

1:50 pm - 12:40 amSEA-YOW

7h 50m1 stop

5:55 am - 12:59 pmYOW-SEA

10h 04m2 stops

$264WestJet

Find Deal

Sat, Oct 11 - Wed, Oct 15

8:40 am - 4:19 pmSEA-YOW

28h 39m2 stops

5:55 am - 12:59 pmYOW-SEA

10h 04m2 stops

$266WestJet

Find Deal

Sat, Oct 11 - Wed, Oct 15

7:40 pm - 8:23 amPDX-YOW

9h 43m1 stop

6:00 pm - 11:01 pmYOW-PDX

8h 01m1 stop

$313Air Canada

Find Deal

Sat, Oct 11 - Sat, Oct 18

12:00 pm - 12:19 amSEA-YOW

9h 19m1 stop

6:00 pm - 10:31 pmYOW-SEA

7h 31m1 stop

$355Air Canada

Find Deal

Sat, Oct 11 - Wed, Oct 15

8:40 am - 6:45 amSEA-YOW

19h 05m1 stop

6:30 pm - 12:31 pmYOW-SEA

21h 01m1 stop

$377

Find Deal

Wed, Oct 1 - Mon, Oct 6

8:40 am - 1:03 pmSEA-YOW

25h 23m2 stops

8:45 am - 6:27 pmYOW-SEA

12h 42m1 stop

$380

Find Deal

Thu, Oct 9 - Sun, Oct 12

United Airlines flights from State of Washington to Ottawa

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

United Airlines

Mar 10

SEA11:50 pmSeattle/Tacoma Intl

7h 17m

1 stop

YOW10:07 amOttawa

Mar 11

YOW2:05 pmOttawa

13h 46m

2 stops

SEA12:51 amSeattle/Tacoma Intl

$238

Find similar

United Airlines

Mar 10

SEA1:55 pmSeattle/Tacoma Intl

17h 12m

2 stops

YOW10:07 amOttawa

Mar 11

YOW2:05 pmOttawa

13h 46m

2 stops

SEA12:51 amSeattle/Tacoma Intl

$244

Find similar

United Airlines

Mar 10

SEA6:31 amSeattle/Tacoma Intl

7h 19m

1 stop

YOW4:50 pmOttawa

Mar 11

YOW4:10 pmOttawa

9h 06m

1 stop

SEA10:16 pmSeattle/Tacoma Intl

$252

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

Oct 11

PDX7:40 pmPortland

9h 43m

1 stop

YOW8:23 amOttawa

Oct 18

YOW6:00 pmOttawa

8h 01m

1 stop

PDX11:01 pmPortland

$313

Find similar

Air Canada

Oct 11

SEA12:00 pmSeattle/Tacoma Intl

9h 19m

1 stop

YOW12:19 amOttawa

Oct 15

YOW6:00 pmOttawa

7h 31m

1 stop

SEA10:31 pmSeattle/Tacoma Intl

$355

Find similar

Air Canada

Mar 10

PDX7:00 pmPortland

8h 43m

1 stop

YOW6:43 amOttawa

Mar 11

YOW9:15 amOttawa

12h 15m

2 stops

PDX6:30 pmPortland

$437

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Tue 3/10

11:50 pm-10:07 am

1 stop7h 17m

Ottawa

Wed 3/11

2:05 pm-12:51 am

2 stops13h 46m

$238

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Tue 3/10

1:55 pm-10:07 am

2 stops17h 12m

Ottawa

Wed 3/11

2:05 pm-12:51 am

2 stops13h 46m

$244

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Tue 3/10

6:31 am-4:50 pm

1 stop7h 19m

Ottawa

Wed 3/11

4:10 pm-10:16 pm

1 stop9h 06m

$252

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Tue 3/10

12:46 pm-10:07 am

2 stops18h 21m

Ottawa

Wed 3/11

4:10 pm-10:16 pm

1 stop9h 06m

$257

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Sat 10/11

1:50 pm-12:40 am

1 stop7h 50m

Ottawa

Wed 10/15

5:55 am-12:59 pm

2 stops10h 04m

$264

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Sat 10/11

8:40 am-4:19 pm

2 stops28h 39m

Ottawa

Wed 10/15

5:55 am-12:59 pm

2 stops10h 04m

$266

PortlandOttawa

PDX - YOW

PDXYOW

Portland

Sat 10/11

7:40 pm-8:23 am

1 stop9h 43m

Ottawa

Sat 10/18

6:00 pm-11:01 pm

1 stop8h 01m

$313

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Sat 10/11

12:00 pm-12:19 am

1 stop9h 19m

Ottawa

Wed 10/15

6:00 pm-10:31 pm

1 stop7h 31m

$355

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Wed 10/1

8:40 am-6:45 am

1 stop19h 05m

Ottawa

Mon 10/6

6:30 pm-12:31 pm

1 stop21h 01m

$377

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Thu 10/9

8:40 am-1:03 pm

2 stops25h 23m

Ottawa

Sun 10/12

8:45 am-6:27 pm

1 stop12h 42m

$380

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?

In general, September is the cheapest month to fly from State of Washington to Ottawa. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $401. The month of August is another great option to travel to Ottawa, with average flight prices from State of Washington averaging around $413.

What is the cheapest day to depart on your flight to Ottawa?

The cheapest day to depart from State of Washington to Ottawa is on a Thursday. Travelers who choose to depart for Ottawa on a Thursday will often find tickets for as low as $461. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Ottawa on Sunday is $627.

What is the cheapest time of day to depart on your flight to Ottawa?

In the afternoon is the cheapest time of day to fly from State of Washington to Ottawa when you can find flight prices for as low as $384. Flying to Ottawa in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $559 on average. Flights to Ottawa from State of Washington in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 $510 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 $268 on momondo.

Can stopping save me money on State of Washington to Ottawa flights?

You could potentially save up to 66% on your flight if you consider stops on a State of Washington to Ottawa flight.

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 many operators does momondo search for flights from Washington to Ottawa Airport?
As of September 2025, there are 3 operators available to choose from for flights from Washington to Ottawa Airport.
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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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.

Best airlines flying from State of Washington to Ottawa

Compare and see reviews for airlines that fly from State of Washington to Ottawa with momondo

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom $256	Free Cancellation	Rating 7.1 10,000 reviews	Search Air Canada flights
United Airlines	PriceFrom $282	Free Cancellation	Rating 7.4 8,929 reviews	Search United Airlines flights
WestJet	PriceFrom $294	Free Cancellation	Rating 7.2 3,091 reviews	Search WestJet flights

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Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington to Ottawa. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for Washington to Ottawa flights to just show those with flexible booking policies.

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?

Price alerts on flights to Ottawa from Washington are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.