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Cheap flights from Washington, D.C. to Ottawa from C$ 182

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 4/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. to Ottawa

Cheap round-trip flights

Air Canada Logo
6:00 a.m. - 10:25 a.m.DCA-YOW
4h 25m1 stop
Air Canada Logo
10:25 a.m. - 12:08 p.m.YOW-DCA
1h 43mdirect
C$ 445Air Canada
Find Deal
Thu, 18 Sep - Sun, 21 Sep
Porter Airlines Logo
11:35 a.m. - 4:34 p.m.IAD-YOW
4h 59m1 stop
Porter Airlines Logo
8:35 a.m. - 3:06 p.m.YOW-IAD
6h 31m1 stop
C$ 449Porter Airlines
Find Deal
Thu, 25 Sep - Thu, 2 Oct
Air Canada Logo
12:55 p.m. - 2:26 p.m.DCA-YOW
1h 31mdirect
Air Canada Logo
10:25 a.m. - 12:08 p.m.YOW-DCA
1h 43mdirect
C$ 451Air Canada
Find Deal
Thu, 18 Sep - Sun, 21 Sep
Porter Airlines Logo
4:20 p.m. - 8:34 p.m.IAD-YOW
4h 14m1 stop
Porter Airlines Logo
9:35 a.m. - 3:06 p.m.YOW-IAD
5h 31m1 stop
C$ 451Porter Airlines
Find Deal
Wed, 1 Oct - Sat, 4 Oct
Logo
7:14 p.m. - 4:57 p.m.IAD-YOW
21h 43m1 stop
Logo
5:55 a.m. - 3:06 p.m.YOW-IAD
9h 11m1 stop
C$ 459
Find Deal
Mon, 15 Sep - Fri, 19 Sep
Logo
7:14 p.m. - 4:57 p.m.IAD-YOW
21h 43m1 stop
Logo
7:00 a.m. - 10:16 a.m.YOW-IAD
3h 16m1 stop
C$ 462
Find Deal
Mon, 15 Sep - Thu, 18 Sep
Logo
7:14 p.m. - 4:57 p.m.IAD-YOW
21h 43m1 stop
Logo
11:00 a.m. - 3:06 p.m.YOW-IAD
4h 06m1 stop
C$ 463
Find Deal
Mon, 15 Sep - Fri, 26 Sep
Logo
7:14 p.m. - 4:57 p.m.IAD-YOW
21h 43m1 stop
Logo
7:00 a.m. - 10:16 a.m.YOW-IAD
3h 16m1 stop
C$ 465
Find Deal
Mon, 15 Sep - Fri, 19 Sep
United Airlines Logo
12:35 p.m. - 2:13 p.m.IAD-YOW
1h 38mdirect
United Airlines Logo
7:29 p.m. - 9:12 p.m.YOW-IAD
1h 43mdirect
C$ 552United Airlines
Find Deal
Thu, 18 Sep - Sun, 21 Sep
United Airlines Logo
7:00 a.m. - 11:45 a.m.DCA-YOW
4h 45m1 stop
United Airlines Logo
10:25 a.m. - 12:08 p.m.YOW-DCA
1h 43mdirect
C$ 590United Airlines
Find Deal
Sat, 20 Sep - Sun, 21 Sep

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

Our best United Airlines deals on Washington, D.C. to Ottawa flight tickets
United Airlines
18 Sep
IAD12:35 p.m.Washington, D.C. Dulles Intl
1h 38m
YOW2:13 p.m.Ottawa
21 Sep
YOW7:29 p.m.Ottawa
1h 43m
IAD9:12 p.m.Washington, D.C. Dulles Intl
C$ 552
Find similar
United Airlines
20 Sep
DCA7:00 a.m.Washington, D.C. Reagan-National
4h 45m
1 stop
YOW11:45 a.m.Ottawa
21 Sep
YOW10:25 a.m.Ottawa
1h 43m
DCA12:08 p.m.Washington, D.C. Reagan-National
C$ 590
Find similar
United Airlines
18 Sep
DCA12:55 p.m.Washington, D.C. Reagan-National
1h 31m
YOW2:26 p.m.Ottawa
21 Sep
YOW10:25 a.m.Ottawa
1h 43m
DCA12:08 p.m.Washington, D.C. Reagan-National
C$ 622
Find similar

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

Our best Air Canada deals on Washington, D.C. to Ottawa flight tickets
Air Canada
18 Sep
DCA6:00 a.m.Washington, D.C. Reagan-National
4h 25m
1 stop
YOW10:25 a.m.Ottawa
21 Sep
YOW10:25 a.m.Ottawa
1h 43m
DCA12:08 p.m.Washington, D.C. Reagan-National
C$ 445
Find similar
Air Canada
18 Sep
DCA12:55 p.m.Washington, D.C. Reagan-National
1h 31m
YOW2:26 p.m.Ottawa
21 Sep
YOW10:25 a.m.Ottawa
1h 43m
DCA12:08 p.m.Washington, D.C. Reagan-National
C$ 451
Find similar
Air Canada
18 Sep
DCA6:00 a.m.Washington, D.C. Reagan-National
4h 25m
1 stop
YOW10:25 a.m.Ottawa
21 Sep
YOW6:00 a.m.Ottawa
4h 20m
1 stop
DCA10:20 a.m.Washington, D.C. Reagan-National
C$ 471
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 28 August 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

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 18/9

6:00 a.m.-10:25 a.m.

1 stop4h 25m

Ottawa

Sun 21/9

10:25 a.m.-12:08 p.m.

Nonstop1h 43m

C$ 445

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Thu 25/9

11:35 a.m.-4:34 p.m.

1 stop4h 59m

Ottawa

Thu 2/10

8:35 a.m.-3:06 p.m.

1 stop6h 31m

C$ 449

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 18/9

12:55 p.m.-2:26 p.m.

Nonstop1h 31m

Ottawa

Sun 21/9

10:25 a.m.-12:08 p.m.

Nonstop1h 43m

C$ 451

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Wed 1/10

4:20 p.m.-8:34 p.m.

1 stop4h 14m

Ottawa

Sat 4/10

9:35 a.m.-3:06 p.m.

1 stop5h 31m

C$ 451

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Mon 15/9

7:14 p.m.-4:57 p.m.

1 stop21h 43m

Ottawa

Fri 19/9

5:55 a.m.-3:06 p.m.

1 stop9h 11m

C$ 459

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Mon 15/9

7:14 p.m.-4:57 p.m.

1 stop21h 43m

Ottawa

Thu 18/9

7:00 a.m.-10:16 a.m.

1 stop3h 16m

C$ 462

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Mon 15/9

7:14 p.m.-4:57 p.m.

1 stop21h 43m

Ottawa

Fri 26/9

11:00 a.m.-3:06 p.m.

1 stop4h 06m

C$ 463

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Mon 15/9

7:14 p.m.-4:57 p.m.

1 stop21h 43m

Ottawa

Fri 19/9

7:00 a.m.-10:16 a.m.

1 stop3h 16m

C$ 465

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Thu 18/9

12:35 p.m.-2:13 p.m.

Nonstop1h 38m

Ottawa

Sun 21/9

7:29 p.m.-9:12 p.m.

Nonstop1h 43m

C$ 552

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Sat 20/9

7:00 a.m.-11:45 a.m.

1 stop4h 45m

Ottawa

Sun 21/9

10:25 a.m.-12:08 p.m.

Nonstop1h 43m

C$ 590

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest 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 typical price of a round-trip flight between Washington, D.C. and Ottawa?

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$ 355. If you aren’t able to travel to Ottawa during the month of January, then flying in November is also cheap. Prices for this month can be found on momondo for an average of C$ 427.

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

Our data shows that Tuesday is the least expensive day to fly to Ottawa. Tickets to fly out on this day can be as low as C$ 240. Flights from Washington, D.C. to Ottawa on a Sunday will generally be more expensive and average around C$ 960. 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$ 343. In the afternoon is when there is more demand to fly to Ottawa, so prices are often more expensive at around C$ 960 per ticket.

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

Fly from Washington, D.C. Reagan-National to Ottawa for the best Washington, D.C. - Ottawa flight prices

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

You are more likely to see cheaper flights to Ottawa from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Ottawa for around C$ 566 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ottawa from Washington, D.C. for as low as C$ 261 on momondo.

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 12% 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 August 2025, prices for Washington, D.C. to Ottawa flights are approximately 12% 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

Best price found

C$ 269

Fastest flight time

1h 31m

Direct flights

Every day

Airports in Ottawa

1 airport
The best one-way flight to Ottawa from Washington, D.C. in the past 72 hours is C$ 269. The best round-trip flight deal from Washington, D.C. to Ottawa found on momondo in the last 72 hours is C$ 179.
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 near Ottawa: 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 many operators does momondo search for flights from Washington, D.C. to Ottawa Airport?

  • 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?

Best airlines flying from Washington, D.C. to Ottawa

Compare and see reviews for airlines that fly from Washington, D.C. to Ottawa with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom C$ 280Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
Porter AirlinesPriceFrom C$ 392Free CancellationRating
8.0
351 reviews
Search Porter Airlines flights

  • Air Canada Flights From Washington, D.C. to Ottawa

    Air Canada operates around 27 flights from Washington, D.C. to Ottawa every week. The average price of these flights found in the last 72 hours has been C$ 408, but momondo users have found Air Canada deals from Washington, D.C. to Ottawa from as low as C$ 202 round-trip. Air Canada has been scored 7.1/10 in 10,000 reviews.

Travelling to a place near Ottawa?

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

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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