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Cheap flights from Washington, D.C. to Ottawa from C$ 147

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Ottawa departing on 4/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Find the cheapest flights from Washington, D.C. to Ottawa

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:15 a.m. - 5:13 p.m.
BWI
-
YOW
10h 58m1 stop
Multiple Airlines Logo
4:15 p.m. - 8:31 a.m.
YOW
-
BWI
16h 16m1 stop
C$ 363Multiple Airlines
Mon, 2 Feb - Wed, 4 Feb
Multiple Airlines Logo
8:00 a.m. - 5:13 p.m.
BWI
-
YOW
9h 13m1 stop
Multiple Airlines Logo
9:30 a.m. - 5:10 p.m.
YOW
-
BWI
7h 40m1 stop
C$ 373Multiple Airlines
Tue, 20 Jan - Tue, 27 Jan
Multiple Airlines Logo
8:08 a.m. - 5:15 p.m.
BWI
-
YOW
9h 07m1 stop
Multiple Airlines Logo
9:40 a.m. - 6:01 p.m.
YOW
-
BWI
8h 21m1 stop
C$ 376Multiple Airlines
Mon, 19 Jan - Mon, 26 Jan
Multiple Airlines Logo
7:27 p.m. - 5:15 p.m.
IAD
-
YOW
21h 48m1 stop
Multiple Airlines Logo
7:00 a.m. - 10:19 a.m.
YOW
-
IAD
3h 19m1 stop
C$ 380Multiple Airlines
Sun, 18 Jan - Thu, 22 Jan
Multiple Airlines Logo
8:00 a.m. - 5:13 p.m.
BWI
-
YOW
9h 13m1 stop
Multiple Airlines Logo
7:00 a.m. - 12:21 a.m.
YOW
-
BWI
17h 21m2 stops
C$ 392Multiple Airlines
Tue, 20 Jan - Tue, 27 Jan
Porter Airlines Logo
11:40 a.m. - 3:04 p.m.
IAD
-
YOW
3h 24m1 stop
Porter Airlines Logo
7:00 a.m. - 10:22 a.m.
YOW
-
IAD
3h 22m1 stop
C$ 395Porter Airlines
Wed, 4 Feb - Mon, 9 Feb
Porter Airlines Logo
11:40 a.m. - 5:29 p.m.
IAD
-
YOW
5h 49m1 stop
Porter Airlines Logo
7:00 a.m. - 10:22 a.m.
YOW
-
IAD
3h 22m1 stop
C$ 409Porter Airlines
Wed, 4 Feb - Mon, 9 Feb
Air Canada Logo
12:55 p.m. - 2:30 p.m.
DCA
-
YOW
1h 35mdirect
Air Canada Logo
10:30 a.m. - 12:19 p.m.
YOW
-
DCA
1h 49mdirect
C$ 410Air Canada
Thu, 22 Jan - Sun, 25 Jan
Air Canada Logo
12:55 p.m. - 2:30 p.m.
DCA
-
YOW
1h 35mdirect
Air Canada Logo
10:30 a.m. - 12:19 p.m.
YOW
-
DCA
1h 49mdirect
C$ 414Air Canada
Thu, 22 Jan - Sun, 25 Jan
United Airlines Logo
10:15 a.m. - 4:30 p.m.
DCA
-
YOW
6h 15m1 stop
United Airlines Logo
6:00 a.m. - 12:24 p.m.
YOW
-
DCA
6h 24m1 stop
C$ 515United Airlines
Wed, 4 Feb - Wed, 11 Feb

United Airlines flights from Washington, D.C. to Ottawa

Our best United Airlines deals on Washington, D.C. to Ottawa flight tickets
United Airlines
4 Feb
IAD5:10 p.m.Washington, D.C. Dulles Intl
1h 42m
YOW6:52 p.m.Ottawa
9 Feb
YOW2:15 p.m.Ottawa
1h 58m
IAD4:13 p.m.Washington, D.C. Dulles Intl
C$ 480
Find similar
United Airlines
4 Feb
IAD5:38 p.m.Washington, D.C. Dulles Intl
4h 18m
1 stop
YOW9:56 p.m.Ottawa
9 Feb
YOW7:27 p.m.Ottawa
1h 58m
IAD9:25 p.m.Washington, D.C. Dulles Intl
C$ 494
Find similar
United Airlines
13 Feb
IAD10:13 p.m.Washington, D.C. Dulles Intl
1h 41m
YOW11:54 p.m.Ottawa
16 Feb
YOW6:20 a.m.Ottawa
9h 45m
1 stop
IAD4:05 p.m.Washington, D.C. Dulles Intl
C$ 501
Find similar

American Airlines flights from Washington, D.C. to Ottawa

Our best American Airlines deals on Washington, D.C. to Ottawa flight tickets
American Airlines
2 Feb
DCA10:12 a.m.Washington, D.C. Reagan-National
6h 46m
1 stop
YOW4:58 p.m.Ottawa
4 Feb
YOW6:40 a.m.Ottawa
15h 24m
2 stops
DCA10:04 p.m.Washington, D.C. Reagan-National
C$ 712
Find similar
American Airlines
16 Jan
DCA6:35 a.m.Washington, D.C. Reagan-National
11h 53m
2 stops
YOW6:28 p.m.Ottawa
19 Jan
YOW6:45 a.m.Ottawa
6h 04m
1 stop
DCA12:49 p.m.Washington, D.C. Reagan-National
C$ 759
Find similar
American Airlines
16 Jan
DCA6:35 a.m.Washington, D.C. Reagan-National
11h 53m
2 stops
YOW6:28 p.m.Ottawa
19 Jan
YOW6:45 a.m.Ottawa
6h 04m
1 stop
DCA12:49 p.m.Washington, D.C. Reagan-National
C$ 776
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Ottawa that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 96,600 searches. Data last updated 23 December 2025.
Use the filters below to find and compare flights from Washington, D.C. to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Mon 2/2

6:15 a.m.-5:13 p.m.

1 stop10h 58m

Ottawa

Wed 4/2

4:15 p.m.-8:31 a.m.

1 stop16h 16m

C$ 363

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Tue 20/1

8:00 a.m.-5:13 p.m.

1 stop9h 13m

Ottawa

Tue 27/1

9:30 a.m.-5:10 p.m.

1 stop7h 40m

C$ 373

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Mon 19/1

8:08 a.m.-5:15 p.m.

1 stop9h 07m

Ottawa

Mon 26/1

9:40 a.m.-6:01 p.m.

1 stop8h 21m

C$ 376

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Sun 18/1

7:27 p.m.-5:15 p.m.

1 stop21h 48m

Ottawa

Thu 22/1

7:00 a.m.-10:19 a.m.

1 stop3h 19m

C$ 380

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Tue 20/1

8:00 a.m.-5:13 p.m.

1 stop9h 13m

Ottawa

Tue 27/1

7:00 a.m.-12:21 a.m.

2 stops17h 21m

C$ 392

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Wed 4/2

11:40 a.m.-3:04 p.m.

1 stop3h 24m

Ottawa

Mon 9/2

7:00 a.m.-10:22 a.m.

1 stop3h 22m

C$ 395

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Wed 4/2

11:40 a.m.-5:29 p.m.

1 stop5h 49m

Ottawa

Mon 9/2

7:00 a.m.-10:22 a.m.

1 stop3h 22m

C$ 409

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 22/1

12:55 p.m.-2:30 p.m.

Nonstop1h 35m

Ottawa

Sun 25/1

10:30 a.m.-12:19 p.m.

Nonstop1h 49m

C$ 410

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 22/1

12:55 p.m.-2:30 p.m.

Nonstop1h 35m

Ottawa

Sun 25/1

10:30 a.m.-12:19 p.m.

Nonstop1h 49m

C$ 414

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Wed 4/2

10:15 a.m.-4:30 p.m.

1 stop6h 15m

Ottawa

Wed 11/2

6:00 a.m.-12:24 p.m.

1 stop6h 24m

C$ 515

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Ottawa from

How to get the cheapest flight ticket from Washington, D.C. 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

What is the cheapest month to fly to Ottawa?

The month of January is, on average, the cheapest month to fly to Ottawa from Washington, D.C., with most prices found around C$ 350. If you aren’t able to travel to Ottawa during the month of January, then flying in April is also cheap. Prices for this month can be found on momondo for an average of C$ 474.

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

Our data shows that Saturday is the least expensive day to fly to Ottawa. Tickets to fly out on this day can be as low as C$ 178. Flights from Washington, D.C. to Ottawa on a Sunday will generally be more expensive and average around C$ 848. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our most recent data shows that the best time of day to fly to Ottawa is in the morning. Flights from Washington, D.C. to Ottawa during this time can be as low as C$ 274. In the afternoon is when there is more demand to fly to Ottawa, so prices are often more expensive at around C$ 956 per ticket.

What is the cheapest Washington, D.C. to Ottawa flight route?

Fly from Washington, D.C. Dulles Intl to Ottawa for the best Washington, D.C. - Ottawa flight prices

What cabin class options are available on Washington, D.C. to Ottawa flights?

There are 3 cabin classes available to choose from on Washington, D.C. to Ottawa flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Washington, D.C. to Ottawa flights?

You could potentially save up to 38% on your flight if you consider stops on a Washington, D.C. to Ottawa flight.

How have Washington, D.C. to Ottawa flight prices changed over time?

As of December 2025, prices for Washington, D.C. to Ottawa flights are approximately 12% more expensive when compared to flights at the same time last year.

When to book flights from Washington, D.C. to Ottawa

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Ottawa according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. to Ottawa (WAS to YOW) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Ottawa

Fastest flight time

1h 31m

Direct flights

Every day

Airports in Ottawa

1 airport
The fastest flight from Washington, D.C. to Ottawa takes 1h 31m
Direct flights go from Washington, D.C. to Ottawa every day.
There is 1 airport in Ottawa. From Washington, D.C. there are direct flights to Ottawa (YOW).
Search flight deals

  • How far is Washington, D.C. to Ottawa by plane?

    There are 731.6 km between Washington, D.C. and Ottawa. 1h 31m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Washington, D.C. to Ottawa Airport?

    Prices for flights from Washington, D.C. to Ottawa Airport refresh daily.

  • How old do you have to be to fly from Washington, D.C. 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 Washington, D.C. 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.

  • What is the most popular plane model from Washington, D.C. to Ottawa?

  • What is the most popular airline from Washington, D.C. to Ottawa?

Travelling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Pembroke
Brockville
Perth
Smiths Falls
Wakefield
Prescott
Petawawa
Calabogie

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Ottawa?

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

Can I find flights from Washington, D.C. to Ottawa with flexible booking policies on momondo?

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

How can momondo help me find flights from Washington, D.C. to Ottawa?

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

Yes momondo offers price alerts on flights to Ottawa from Washington, D.C.. 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.

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