Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Washington, D.C. Dulles Intl Airport to Ottawa from C$ 218

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 28/11. 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

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Early arrival? Instantly customize your results

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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
6:30 p.m. - 10:29 p.m.IAD-YOW
3h 59m1 stop
Porter Airlines Logo
1:20 p.m. - 5:14 p.m.YOW-IAD
3h 54m1 stop
C$ 458Porter Airlines
Find Deal
Thu, 4 Dec - Mon, 8 Dec
Porter Airlines Logo
11:40 a.m. - 5:29 p.m.IAD-YOW
5h 49m1 stop
Porter Airlines Logo
6:50 a.m. - 10:24 a.m.YOW-IAD
3h 34m1 stop
C$ 459Porter Airlines
Find Deal
Fri, 5 Dec - Mon, 8 Dec
Porter Airlines Logo
2:30 p.m. - 6:59 p.m.IAD-YOW
4h 29m1 stop
Porter Airlines Logo
12:10 p.m. - 5:14 p.m.YOW-IAD
5h 04m1 stop
C$ 460Porter Airlines
Find Deal
Thu, 25 Dec - Sun, 28 Dec
Porter Airlines Logo
11:40 a.m. - 5:29 p.m.IAD-YOW
5h 49m1 stop
Porter Airlines Logo
12:10 p.m. - 5:14 p.m.YOW-IAD
5h 04m1 stop
C$ 472Porter Airlines
Find Deal
Sat, 27 Dec - Sat, 3 Jan
Porter Airlines Logo
6:30 p.m. - 10:29 p.m.IAD-YOW
3h 59m1 stop
Porter Airlines Logo
1:20 p.m. - 5:14 p.m.YOW-IAD
3h 54m1 stop
C$ 474Porter Airlines
Find Deal
Sat, 20 Dec - Sun, 4 Jan
Porter Airlines Logo
11:40 a.m. - 5:29 p.m.IAD-YOW
5h 49m1 stop
Porter Airlines Logo
12:10 p.m. - 5:14 p.m.YOW-IAD
5h 04m1 stop
C$ 479Porter Airlines
Find Deal
Thu, 26 Feb - Sun, 1 Mar
Porter Airlines Logo
6:30 p.m. - 10:29 p.m.IAD-YOW
3h 59m1 stop
Porter Airlines Logo
1:20 p.m. - 5:14 p.m.YOW-IAD
3h 54m1 stop
C$ 489Porter Airlines
Find Deal
Sat, 20 Dec - Sat, 27 Dec
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$ 491Porter Airlines
Find Deal
Fri, 19 Dec - Mon, 22 Dec
Multiple Airlines Logo
9:58 p.m. - 5:13 p.m.IAD-YOW
19h 15m1 stop
Multiple Airlines Logo
1:20 p.m. - 5:14 p.m.YOW-IAD
3h 54m1 stop
C$ 535Multiple Airlines
Find Deal
Tue, 30 Dec - Sun, 4 Jan
Multiple Airlines Logo
7:01 p.m. - 5:25 p.m.IAD-YOW
22h 24m2 stops
Multiple Airlines Logo
1:20 p.m. - 5:14 p.m.YOW-IAD
3h 54m1 stop
C$ 536Multiple Airlines
Find Deal
Wed, 24 Dec - Mon, 29 Dec

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
4 Dec
IAD6:30 p.m.Washington, D.C. Dulles Intl
3h 59m
1 stop
YOW10:29 p.m.Ottawa
8 Dec
YOW1:20 p.m.Ottawa
3h 54m
1 stop
IAD5:14 p.m.Washington, D.C. Dulles Intl
C$ 458
Find similar
Porter Airlines
5 Dec
IAD11:40 a.m.Washington, D.C. Dulles Intl
5h 49m
1 stop
YOW5:29 p.m.Ottawa
8 Dec
YOW6:50 a.m.Ottawa
3h 34m
1 stop
IAD10:24 a.m.Washington, D.C. Dulles Intl
C$ 459
Find similar
Porter Airlines
25 Dec
IAD2:30 p.m.Washington, D.C. Dulles Intl
4h 29m
1 stop
YOW6:59 p.m.Ottawa
28 Dec
YOW12:10 p.m.Ottawa
5h 04m
1 stop
IAD5:14 p.m.Washington, D.C. Dulles Intl
C$ 460
Find similar

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
17 Nov
IAD5:10 p.m.Washington, D.C. Dulles Intl
1h 45m
YOW6:55 p.m.Ottawa
19 Nov
YOW9:45 a.m.Ottawa
1h 54m
IAD11:39 a.m.Washington, D.C. Dulles Intl
C$ 1,047
Find similar
Air Canada
17 Nov
IAD5:15 p.m.Washington, D.C. Dulles Intl
4h 53m
1 stop
YOW10:08 p.m.Ottawa
19 Nov
YOW7:30 p.m.Ottawa
1h 52m
IAD9:22 p.m.Washington, D.C. Dulles Intl
C$ 1,064
Find similar
Air Canada
17 Nov
IAD10:12 p.m.Washington, D.C. Dulles Intl
1h 42m
YOW11:54 p.m.Ottawa
19 Nov
YOW2:15 p.m.Ottawa
1h 54m
IAD4:09 p.m.Washington, D.C. Dulles Intl
C$ 1,123
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 5 November 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 4/12

6:30 p.m.-10:29 p.m.

1 stop3h 59m

Ottawa

Mon 8/12

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

1 stop3h 54m

C$ 458

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Fri 5/12

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

1 stop5h 49m

Ottawa

Mon 8/12

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

1 stop3h 34m

C$ 459

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Thu 25/12

2:30 p.m.-6:59 p.m.

1 stop4h 29m

Ottawa

Sun 28/12

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

1 stop5h 04m

C$ 460

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Sat 27/12

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

1 stop5h 49m

Ottawa

Sat 3/1

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

1 stop5h 04m

C$ 472

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Sat 20/12

6:30 p.m.-10:29 p.m.

1 stop3h 59m

Ottawa

Sun 4/1

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

1 stop3h 54m

C$ 474

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Thu 26/2

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

1 stop5h 49m

Ottawa

Sun 1/3

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

1 stop5h 04m

C$ 479

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Sat 20/12

6:30 p.m.-10:29 p.m.

1 stop3h 59m

Ottawa

Sat 27/12

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

1 stop3h 54m

C$ 489

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Fri 19/12

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

1 stop3h 24m

Ottawa

Mon 22/12

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

1 stop3h 34m

C$ 491

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Tue 30/12

9:58 p.m.-5:13 p.m.

1 stop19h 15m

Ottawa

Sun 4/1

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

1 stop3h 54m

C$ 535

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Wed 24/12

7:01 p.m.-5:25 p.m.

2 stops22h 24m

Ottawa

Mon 29/12

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

1 stop3h 54m

C$ 536

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 April is, on average, the cheapest month to fly to Ottawa from Washington, D.C. Dulles Intl Airport, with most prices found around C$ 418. If you aren’t able to travel to Ottawa during the month of April, then flying in March is also cheap. Prices for this month can be found on momondo for an average of C$ 422.

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$ 182. Flights from Washington, D.C. Dulles Intl Airport to Ottawa on a Sunday will generally be more expensive and average around C$ 977. 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$ 299. In the afternoon is when there is more demand to fly to Ottawa, so prices are often more expensive at around C$ 977 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 2 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 36% 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 November 2025, prices for Washington, D.C. Dulles Intl Airport to Ottawa flights are approximately 40% 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. 3h 24m 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
Pembroke
Brockville
Smiths Falls
Perth
Wakefield
Calabogie
Prescott
Petawawa

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.

An easier way to manage your Ottawa trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 5/12
Fri 12/12
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Canada