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Cheap flights from Washington, D.C. to Ottawa from C$ 149

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 6/2. 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.
Porter Airlines Logo
11:40 a.m. - 6:09 p.m.
IAD
-
YOW
6h 29m
1 stop
Porter Airlines Logo
12:10 p.m. - 5:14 p.m.
YOW
-
IAD
5h 04m
1 stop
C$ 315Porter Airlines
Mon, 23 Feb - Fri, 27 Feb
Porter Airlines Logo
11:40 a.m. - 3:44 p.m.
IAD
-
YOW
4h 04m
1 stop
Porter Airlines Logo
12:10 p.m. - 5:14 p.m.
YOW
-
IAD
5h 04m
1 stop
C$ 323Porter Airlines
Thu, 26 Feb - Fri, 27 Feb
Multiple Airlines Logo
11:40 a.m. - 5:29 p.m.
IAD
-
YOW
5h 49m
1 stop
Multiple Airlines Logo
9:15 a.m. - 3:49 p.m.
YOW
-
IAD
6h 34m
1 stop
C$ 328Multiple Airlines
Wed, 11 Feb - Wed, 18 Feb
Porter Airlines Logo
11:40 a.m. - 3:44 p.m.
IAD
-
YOW
4h 04m
1 stop
Porter Airlines Logo
8:40 a.m. - 12:34 p.m.
YOW
-
IAD
3h 54m
1 stop
C$ 330Porter Airlines
Wed, 18 Feb - Sat, 21 Feb
Porter Airlines Logo
11:40 a.m. - 6:09 p.m.
IAD
-
YOW
6h 29m
1 stop
Porter Airlines Logo
1:20 p.m. - 5:14 p.m.
YOW
-
IAD
3h 54m
1 stop
C$ 333Porter Airlines
Sun, 8 Feb - Sun, 15 Feb
Porter Airlines Logo
11:40 a.m. - 6:09 p.m.
IAD
-
YOW
6h 29m
1 stop
Porter Airlines Logo
1:20 p.m. - 5:14 p.m.
YOW
-
IAD
3h 54m
1 stop
C$ 335Porter Airlines
Mon, 23 Feb - Sun, 1 Mar
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$ 337Air Canada
Fri, 27 Feb - Fri, 6 Mar
Air Canada Logo
4:15 p.m. - 8:26 p.m.
DCA
-
YOW
4h 11m
1 stop
Air Canada Logo
10:30 a.m. - 12:19 p.m.
YOW
-
DCA
1h 49mdirect
C$ 346Air Canada
Fri, 27 Feb - Fri, 6 Mar
Multiple Airlines Logo
6:20 a.m. - 5:25 p.m.
BWI
-
YOW
11h 05m
1 stop
Multiple Airlines Logo
7:00 a.m. - 11:31 p.m.
YOW
-
BWI
16h 31m
1 stop
C$ 362Multiple Airlines
Tue, 24 Feb - Wed, 25 Feb
United Airlines Logo
7:00 a.m. - 1:34 p.m.
DCA
-
YOW
6h 34m
1 stop
United Airlines Logo
5:11 p.m. - 10:52 p.m.
YOW
-
DCA
5h 41m
1 stop
C$ 390United Airlines
Tue, 24 Feb - Tue, 24 Feb

Air Canada flights from Washington, D.C. to Ottawa

Our best Air Canada deals on Washington, D.C. to Ottawa flight tickets
Air Canada
27 Feb
DCA12:55 p.m.Washington, D.C. Reagan-National
1h 35m
YOW2:30 p.m.Ottawa
6 Mar
YOW10:30 a.m.Ottawa
1h 49m
DCA12:19 p.m.Washington, D.C. Reagan-National
C$ 337
Air Canada
27 Feb
DCA4:15 p.m.Washington, D.C. Reagan-National
4h 11m
1 stop
YOW8:26 p.m.Ottawa
6 Mar
YOW10:30 a.m.Ottawa
1h 49m
DCA12:19 p.m.Washington, D.C. Reagan-National
C$ 346
Air Canada
28 Feb
DCA6:00 a.m.Washington, D.C. Reagan-National
3h 41m
1 stop
YOW9:41 a.m.Ottawa
7 Mar
YOW6:05 p.m.Ottawa
4h 30m
1 stop
DCA10:35 p.m.Washington, D.C. Reagan-National
C$ 358

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

Our best United Airlines deals on Washington, D.C. to Ottawa flight tickets
United Airlines
24 Feb
IAD8:15 a.m.Washington, D.C. Dulles Intl
8h 52m
1 stop
YOW5:07 p.m.Ottawa
24 Feb
YOW7:30 p.m.Ottawa
1h 53m
IAD9:23 p.m.Washington, D.C. Dulles Intl
C$ 369
United Airlines
24 Feb
DCA7:00 a.m.Washington, D.C. Reagan-National
6h 34m
1 stop
YOW1:34 p.m.Ottawa
24 Feb
YOW5:11 p.m.Ottawa
5h 41m
1 stop
DCA10:52 p.m.Washington, D.C. Reagan-National
C$ 390
United Airlines
21 Feb
IAD12:43 p.m.Washington, D.C. Dulles Intl
1h 44m
YOW2:27 p.m.Ottawa
22 Feb
YOW7:30 p.m.Ottawa
1h 53m
IAD9:23 p.m.Washington, D.C. Dulles Intl
C$ 394

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 15 January 2026.
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

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Mon 23/2

11:40 a.m.-6:09 p.m.

1 stop6h 29m

Ottawa

Fri 27/2

12:10 p.m.-5:14 p.m.

1 stop5h 04m

C$ 315

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Thu 26/2

11:40 a.m.-3:44 p.m.

1 stop4h 04m

Ottawa

Fri 27/2

12:10 p.m.-5:14 p.m.

1 stop5h 04m

C$ 323

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Wed 11/2

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

1 stop5h 49m

Ottawa

Wed 18/2

9:15 a.m.-3:49 p.m.

1 stop6h 34m

C$ 328

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Wed 18/2

11:40 a.m.-3:44 p.m.

1 stop4h 04m

Ottawa

Sat 21/2

8:40 a.m.-12:34 p.m.

1 stop3h 54m

C$ 330

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Sun 8/2

11:40 a.m.-6:09 p.m.

1 stop6h 29m

Ottawa

Sun 15/2

1:20 p.m.-5:14 p.m.

1 stop3h 54m

C$ 333

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Mon 23/2

11:40 a.m.-6:09 p.m.

1 stop6h 29m

Ottawa

Sun 1/3

1:20 p.m.-5:14 p.m.

1 stop3h 54m

C$ 335

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Fri 27/2

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

Nonstop1h 35m

Ottawa

Fri 6/3

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

Nonstop1h 49m

C$ 337

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Fri 27/2

4:15 p.m.-8:26 p.m.

1 stop4h 11m

Ottawa

Fri 6/3

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

Nonstop1h 49m

C$ 346

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Tue 24/2

6:20 a.m.-5:25 p.m.

1 stop11h 05m

Ottawa

Wed 25/2

7:00 a.m.-11:31 p.m.

1 stop16h 31m

C$ 362

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Tue 24/2

7:00 a.m.-1:34 p.m.

1 stop6h 34m

Ottawa

Tue 24/2

5:11 p.m.-10:52 p.m.

1 stop5h 41m

C$ 390

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$ 247. 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$ 478.

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$ 179. Flights from Washington, D.C. to Ottawa on a Sunday will generally be more expensive and average around C$ 855. 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$ 241. In the afternoon is when there is more demand to fly to Ottawa, so prices are often more expensive at around C$ 964 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 17% 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 January 2026, prices for Washington, D.C. to Ottawa flights are approximately 2% cheaper 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
Calabogie
Petawawa

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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