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Cheap flights from Washington, D.C. Dulles Intl Airport to Ottawa from C$ 181

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. Dulles Intl Airport to Ottawa departing on 3/10. 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. Dulles Intl Airport to Ottawa

Cheap round-trip flights

Logo
11:40 a.m. - 12:42 a.m.IAD-YOW
13h 02m1 stop
Logo
5:40 a.m. - 5:14 p.m.YOW-IAD
11h 34m1 stop
C$ 442
Find Deal
Thu, 20 Nov - Fri, 28 Nov
Logo
1:45 p.m. - 12:42 a.m.IAD-YOW
10h 57m1 stop
Logo
5:40 a.m. - 5:14 p.m.YOW-IAD
11h 34m1 stop
C$ 446
Find Deal
Sat, 22 Nov - Fri, 28 Nov
Porter Airlines Logo
4:20 p.m. - 7:59 p.m.IAD-YOW
3h 39m1 stop
Porter Airlines Logo
8:35 a.m. - 3:06 p.m.YOW-IAD
6h 31m1 stop
C$ 450Porter Airlines
Find Deal
Sun, 12 Oct - Sun, 19 Oct
Porter Airlines Logo
11:35 a.m. - 4:34 p.m.IAD-YOW
4h 59m1 stop
Porter Airlines Logo
11:00 a.m. - 3:06 p.m.YOW-IAD
4h 06m1 stop
C$ 451Porter Airlines
Find Deal
Thu, 9 Oct - Thu, 16 Oct
Logo
6:45 p.m. - 12:40 a.m.IAD-YOW
29h 55m1 stop
Logo
9:35 a.m. - 3:06 p.m.YOW-IAD
5h 31m1 stop
C$ 453
Find Deal
Fri, 3 Oct - Mon, 6 Oct
Porter Airlines Logo
11:40 a.m. - 3:04 p.m.IAD-YOW
3h 24m1 stop
Porter Airlines Logo
6:50 a.m. - 10:24 a.m.YOW-IAD
3h 34m1 stop
C$ 455Porter Airlines
Find Deal
Wed, 29 Oct - Wed, 5 Nov
Porter Airlines Logo
11:40 a.m. - 6:39 p.m.IAD-YOW
6h 59m1 stop
Porter Airlines Logo
12:10 p.m. - 5:14 p.m.YOW-IAD
5h 04m1 stop
C$ 466Porter Airlines
Find Deal
Thu, 30 Oct - Thu, 6 Nov
United Airlines Logo
6:15 a.m. - 12:16 p.m.IAD-YOW
6h 01m1 stop
United Airlines Logo
2:45 p.m. - 4:28 p.m.YOW-IAD
1h 43mdirect
C$ 561United Airlines
Find Deal
Sat, 18 Oct - Sat, 18 Oct
United Airlines Logo
8:20 a.m. - 2:04 p.m.IAD-YOW
5h 44m1 stop
United Airlines Logo
5:50 p.m. - 10:58 p.m.YOW-IAD
5h 08m1 stop
C$ 565United Airlines
Find Deal
Sat, 18 Oct - Sat, 18 Oct
United Airlines Logo
10:12 p.m. - 11:54 p.m.IAD-YOW
1h 42mdirect
United Airlines Logo
7:30 p.m. - 9:22 p.m.YOW-IAD
1h 52mdirect
C$ 587United Airlines
Find Deal
Fri, 7 Nov - Tue, 11 Nov

Porter Airlines flights from Washington, D.C. Dulles Intl Airport to Ottawa

Our best Porter Airlines deals on Washington, D.C. Dulles Intl Airport to Ottawa flight tickets
Porter Airlines
12 Oct
IAD4:20 p.m.Washington, D.C. Dulles Intl
3h 39m
1 stop
YOW7:59 p.m.Ottawa
19 Oct
YOW8:35 a.m.Ottawa
6h 31m
1 stop
IAD3:06 p.m.Washington, D.C. Dulles Intl
C$ 450
Find similar
Porter Airlines
9 Oct
IAD11:35 a.m.Washington, D.C. Dulles Intl
4h 59m
1 stop
YOW4:34 p.m.Ottawa
16 Oct
YOW11:00 a.m.Ottawa
4h 06m
1 stop
IAD3:06 p.m.Washington, D.C. Dulles Intl
C$ 451
Find similar
Porter Airlines
29 Oct
IAD11:40 a.m.Washington, D.C. Dulles Intl
3h 24m
1 stop
YOW3:04 p.m.Ottawa
5 Nov
YOW6:50 a.m.Ottawa
3h 34m
1 stop
IAD10:24 a.m.Washington, D.C. Dulles Intl
C$ 455
Find similar

United Airlines flights from Washington, D.C. Dulles Intl Airport to Ottawa

Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to Ottawa flight tickets
United Airlines
18 Oct
IAD6:15 a.m.Washington, D.C. Dulles Intl
6h 01m
1 stop
YOW12:16 p.m.Ottawa
18 Oct
YOW2:45 p.m.Ottawa
1h 43m
IAD4:28 p.m.Washington, D.C. Dulles Intl
C$ 561
Find similar
United Airlines
18 Oct
IAD8:20 a.m.Washington, D.C. Dulles Intl
5h 44m
1 stop
YOW2:04 p.m.Ottawa
18 Oct
YOW5:50 p.m.Ottawa
5h 08m
1 stop
IAD10:58 p.m.Washington, D.C. Dulles Intl
C$ 565
Find similar
United Airlines
7 Nov
IAD10:12 p.m.Washington, D.C. Dulles Intl
1h 42m
YOW11:54 p.m.Ottawa
11 Nov
YOW7:30 p.m.Ottawa
1h 52m
IAD9:22 p.m.Washington, D.C. Dulles Intl
C$ 587
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport 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 September 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport 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

Thu 20/11

11:40 a.m.-12:42 a.m.

1 stop13h 02m

Ottawa

Fri 28/11

5:40 a.m.-5:14 p.m.

1 stop11h 34m

C$ 442

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Sat 22/11

1:45 p.m.-12:42 a.m.

1 stop10h 57m

Ottawa

Fri 28/11

5:40 a.m.-5:14 p.m.

1 stop11h 34m

C$ 446

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Sun 12/10

4:20 p.m.-7:59 p.m.

1 stop3h 39m

Ottawa

Sun 19/10

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

1 stop6h 31m

C$ 450

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Thu 9/10

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

1 stop4h 59m

Ottawa

Thu 16/10

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

1 stop4h 06m

C$ 451

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Fri 3/10

6:45 p.m.-12:40 a.m.

1 stop29h 55m

Ottawa

Mon 6/10

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

1 stop5h 31m

C$ 453

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Wed 29/10

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

1 stop3h 24m

Ottawa

Wed 5/11

6:50 a.m.-10:24 a.m.

1 stop3h 34m

C$ 455

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Thu 30/10

11:40 a.m.-6:39 p.m.

1 stop6h 59m

Ottawa

Thu 6/11

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

1 stop5h 04m

C$ 466

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Sat 18/10

6:15 a.m.-12:16 p.m.

1 stop6h 01m

Ottawa

Sat 18/10

2:45 p.m.-4:28 p.m.

Nonstop1h 43m

C$ 561

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Sat 18/10

8:20 a.m.-2:04 p.m.

1 stop5h 44m

Ottawa

Sat 18/10

5:50 p.m.-10:58 p.m.

1 stop5h 08m

C$ 565

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Fri 7/11

10:12 p.m.-11:54 p.m.

Nonstop1h 42m

Ottawa

Tue 11/11

7:30 p.m.-9:22 p.m.

Nonstop1h 52m

C$ 587

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. Dulles Intl Airport 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 March is, on average, the cheapest month to fly to Ottawa from Washington, D.C. Dulles Intl Airport, with most prices found around C$ 411. If you aren’t able to travel to Ottawa during the month of March, then flying in April is also cheap. Prices for this month can be found on momondo for an average of C$ 411.

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$ 241. Flights from Washington, D.C. Dulles Intl Airport to Ottawa on a Sunday will generally be more expensive and average around C$ 961. 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. Dulles Intl Airport to Ottawa during this time can be as low as C$ 337. In the afternoon is when there is more demand to fly to Ottawa, so prices are often more expensive at around C$ 961 per ticket.

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

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

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

There are 3 cabin classes available to choose from on Washington, D.C. Dulles Intl 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. Dulles Intl Airport to Ottawa flights?

You could potentially save up to 45% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Ottawa flight.

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

As of September 2025, prices for Washington, D.C. Dulles Intl Airport to Ottawa flights are approximately 55% more expensive when compared to flights at the same time last year.

When to book flights from Washington, D.C. Dulles Intl Airport to Ottawa

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport to Ottawa (IAD to YOW) flight deals and tips

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

Fastest flight time

1h 32m

Direct flights

Every day

Airports in Ottawa

1 airport
The fastest flight from Washington, D.C. Dulles Intl Airport to Ottawa takes 1h 32m
Direct flights go from Washington, D.C. Dulles Intl Airport to Ottawa every day.
There is 1 airport near Ottawa: Ottawa (YOW)
Search flight deals

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

    The distance between Washington, D.C. Dulles Intl and Ottawa is about 732.9 km. 1h 42m is a normal flight duration for this route.

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

    Prices for flights from Washington, D.C. Dulles Intl Airport to Ottawa Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Ottawa Airport?

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport 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, D.C. Dulles Intl Airport to Ottawa Airport.

  • What documentation or ID do you need to fly to Ottawa Airport?

    The necessary travel and health documents for your Ottawa Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

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

Best airlines flying from Washington, D.C. Dulles Intl Airport to Ottawa

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport 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$ 393Free CancellationRating
7.9
363 reviews
Search Porter Airlines flights

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

    Air Canada flight deals from Washington, D.C. Dulles Intl Airport to Ottawa start from C$ 202 round-trip. Over the 21 Air Canada flights for this route in a normal week, average airfare is usually C$ 408 round-trip - but some users have found much cheaper deals with momondo.

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
Prescott
Petawawa
Winchester

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Ottawa for you.

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

Yes. momondo enables you to select and highlight flights to Ottawa from Washington, D.C. with this policy.

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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