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Cheap flights from Washington, D.C. Dulles Intl Airport to Ottawa from C$ 220

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 16/7. 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
1 adult, Economy, 0 bags

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
Porter Airlines Logo
3:50 p.m. - 8:04 p.m.
IAD
-
YOW
4h 14m
1 stop
Porter Airlines Logo
10:40 a.m. - 3:10 p.m.
YOW
-
IAD
4h 30m
1 stop
C$ 438Porter Airlines
Thu, 17 Sep - Mon, 21 Sep
Porter Airlines Logo
3:50 p.m. - 8:04 p.m.
IAD
-
YOW
4h 14m
1 stop
Porter Airlines Logo
10:40 a.m. - 3:10 p.m.
YOW
-
IAD
4h 30m
1 stop
C$ 439Porter Airlines
Fri, 18 Sep - Mon, 21 Sep
Porter Airlines Logo
11:20 a.m. - 6:14 p.m.
IAD
-
YOW
6h 54m
1 stop
Porter Airlines Logo
10:20 a.m. - 5:14 p.m.
YOW
-
IAD
6h 54m
1 stop
C$ 449Porter Airlines
Wed, 18 Nov - Thu, 26 Nov
Porter Airlines Logo
11:20 a.m. - 5:29 p.m.
IAD
-
YOW
6h 09m
1 stop
Porter Airlines Logo
10:20 a.m. - 5:14 p.m.
YOW
-
IAD
6h 54m
1 stop
C$ 454Porter Airlines
Sat, 21 Nov - Mon, 30 Nov
Porter Airlines Logo
3:55 p.m. - 8:04 p.m.
IAD
-
YOW
4h 09m
1 stop
Porter Airlines Logo
10:40 a.m. - 3:11 p.m.
YOW
-
IAD
4h 31m
1 stop
C$ 463Porter Airlines
Tue, 7 Jul - Thu, 9 Jul
Porter Airlines Logo
3:55 p.m. - 8:04 p.m.
IAD
-
YOW
4h 09m
1 stop
Porter Airlines Logo
10:40 a.m. - 3:11 p.m.
YOW
-
IAD
4h 31m
1 stop
C$ 464Porter Airlines
Thu, 23 Jul - Fri, 31 Jul
Air Canada Logo
5:15 p.m. - 9:52 p.m.
IAD
-
YOW
4h 37m
1 stop
Air Canada Logo
12:15 p.m. - 4:38 p.m.
YOW
-
IAD
4h 23m
1 stop
C$ 467Air Canada
Thu, 9 Jul - Mon, 13 Jul
Porter Airlines Logo
3:55 p.m. - 8:04 p.m.
IAD
-
YOW
4h 09m
1 stop
Porter Airlines Logo
10:40 a.m. - 3:11 p.m.
YOW
-
IAD
4h 31m
1 stop
C$ 468Porter Airlines
Tue, 28 Jul - Thu, 30 Jul
Porter Airlines Logo
3:55 p.m. - 8:04 p.m.
IAD
-
YOW
4h 09m
1 stop
Porter Airlines Logo
10:40 a.m. - 3:11 p.m.
YOW
-
IAD
4h 31m
1 stop
C$ 470Porter Airlines
Fri, 10 Jul - Fri, 17 Jul
Porter Airlines Logo
4:00 p.m. - 8:04 p.m.
IAD
-
YOW
4h 04m
1 stop
Porter Airlines Logo
10:40 a.m. - 3:11 p.m.
YOW
-
IAD
4h 31m
1 stop
C$ 471Porter Airlines
Mon, 29 Jun - Thu, 2 Jul

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Air Canada flights from Washington, D.C. Dulles Intl Airport to Ottawa

Our best Air Canada deals on Washington, D.C. Dulles Intl Airport to Ottawa flight tickets
Air Canada
9 Jul
IAD5:15 p.m.Washington, D.C. Dulles Intl
4h 37m
1 stop
YOW9:52 p.m.Ottawa
13 Jul
YOW12:15 p.m.Ottawa
4h 23m
1 stop
IAD4:38 p.m.Washington, D.C. Dulles Intl
C$ 467
Air Canada
4 Nov
IAD5:15 p.m.Washington, D.C. Dulles Intl
4h 36m
1 stop
YOW9:51 p.m.Ottawa
7 Nov
YOW9:55 a.m.Ottawa
6h 20m
1 stop
IAD4:15 p.m.Washington, D.C. Dulles Intl
C$ 541
Air Canada
27 Jun
IAD5:15 p.m.Washington, D.C. Dulles Intl
4h 37m
1 stop
YOW9:52 p.m.Ottawa
28 Jun
YOW6:00 a.m.Ottawa
1h 44m
IAD7:44 a.m.Washington, D.C. Dulles Intl
C$ 559

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
24 Nov
IAD6:00 a.m.Washington, D.C. Dulles Intl
10h 15m
1 stop
YOW4:15 p.m.Ottawa
24 Nov
YOW7:25 p.m.Ottawa
1h 35m
IAD9:00 p.m.Washington, D.C. Dulles Intl
C$ 495
United Airlines
24 Nov
IAD8:15 a.m.Washington, D.C. Dulles Intl
5h 11m
1 stop
YOW1:26 p.m.Ottawa
24 Nov
YOW5:20 p.m.Ottawa
6h 54m
1 stop
IAD12:14 a.m.Washington, D.C. Dulles Intl
C$ 516
United Airlines
2 Jul
IAD8:29 a.m.Washington, D.C. Dulles Intl
8h 09m
1 stop
YOW4:38 p.m.Ottawa
2 Jul
YOW7:30 p.m.Ottawa
1h 43m
IAD9:13 p.m.Washington, D.C. Dulles Intl
C$ 519

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 June 2026.
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

Cheapest round-trip

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Thu 17/9

3:50 p.m.-8:04 p.m.

1 stop4h 14m

Ottawa

Mon 21/9

10:40 a.m.-3:10 p.m.

1 stop4h 30m

C$ 438

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Fri 18/9

3:50 p.m.-8:04 p.m.

1 stop4h 14m

Ottawa

Mon 21/9

10:40 a.m.-3:10 p.m.

1 stop4h 30m

C$ 439

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Wed 18/11

11:20 a.m.-6:14 p.m.

1 stop6h 54m

Ottawa

Thu 26/11

10:20 a.m.-5:14 p.m.

1 stop6h 54m

C$ 449

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Sat 21/11

11:20 a.m.-5:29 p.m.

1 stop6h 09m

Ottawa

Mon 30/11

10:20 a.m.-5:14 p.m.

1 stop6h 54m

C$ 454

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Tue 7/7

3:55 p.m.-8:04 p.m.

1 stop4h 09m

Ottawa

Thu 9/7

10:40 a.m.-3:11 p.m.

1 stop4h 31m

C$ 463

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Thu 23/7

3:55 p.m.-8:04 p.m.

1 stop4h 09m

Ottawa

Fri 31/7

10:40 a.m.-3:11 p.m.

1 stop4h 31m

C$ 464

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Thu 9/7

5:15 p.m.-9:52 p.m.

1 stop4h 37m

Ottawa

Mon 13/7

12:15 p.m.-4:38 p.m.

1 stop4h 23m

C$ 467

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Tue 28/7

3:55 p.m.-8:04 p.m.

1 stop4h 09m

Ottawa

Thu 30/7

10:40 a.m.-3:11 p.m.

1 stop4h 31m

C$ 468

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Fri 10/7

3:55 p.m.-8:04 p.m.

1 stop4h 09m

Ottawa

Fri 17/7

10:40 a.m.-3:11 p.m.

1 stop4h 31m

C$ 470
Quickest round-trip

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Mon 29/6

4:00 p.m.-8:04 p.m.

1 stop4h 04m

Ottawa

Thu 2/7

10:40 a.m.-3:11 p.m.

1 stop4h 31m

C$ 471

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. 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 typical price of a round-trip flight between Washington, D.C. Dulles Intl Airport and Ottawa?

What is the cheapest month to fly to Ottawa?

The month of December is, on average, the cheapest month to fly to Ottawa from Washington, D.C. Dulles Intl Airport, with most prices found around C$ 501. If you aren’t able to travel to Ottawa during the month of December, then flying in January is also cheap. Prices for this month can be found on momondo for an average of C$ 503.

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$ 304. Flights from Washington, D.C. Dulles Intl Airport to Ottawa on a Tuesday will generally be more expensive and average around C$ 886. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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 Airport to Ottawa flights?

There are 3 cabin classes available to choose from on Washington, D.C. Dulles Intl Airport 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 4% 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 June 2026, prices for Washington, D.C. Dulles Intl Airport to Ottawa flights are approximately 19% 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

Best price found

C$ 277

Fastest flight time

1h 32m

Direct flights

Every day

Airports in Ottawa

1 airport
The best one-way flight to Ottawa from Washington, D.C. Dulles Intl Airport in the past 72 hours is C$ 277. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Ottawa found on momondo in the last 72 hours is C$ 423.
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 in Ottawa. From Washington, D.C. Dulles Intl Airport there are direct flights to Ottawa (YOW).
Search flight deals

Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Ottawa

  • 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 32m 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 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?

Travelling to a place near Ottawa?

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

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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