Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Washington, D.C. Dulles Intl Airport to Ottawa from C$ 183

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.
Air Canada Logo
5:20 p.m. - 9:52 p.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
4h 32m1 stop Toronto Island
Air Canada Logo
6:00 a.m. - 2:57 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
8h 57m1 stop Montreal Pierre Elliott Trudeau Intl
C$ 393Air Canada
Tue, 13 Oct - Wed, 14 Oct
Air Canada Logo
3:45 p.m. - 10:10 p.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
6h 25m1 stop Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
9:55 a.m. - 4:42 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
6h 47m1 stop Toronto Island
C$ 415Air Canada
Tue, 13 Oct - Wed, 14 Oct
Porter Airlines Logo
3:50 p.m. - 9:42 p.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
5h 52m1 stop Toronto Island
Porter Airlines Logo
10:40 a.m. - 3:10 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
4h 30m1 stop Toronto Island
C$ 456Porter Airlines
Sun, 4 Oct - Fri, 9 Oct
Porter Airlines Logo
11:25 a.m. - 5:52 p.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
6h 27m1 stop Toronto Island
Porter Airlines Logo
10:40 a.m. - 3:10 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
4h 30m1 stop Toronto Island
C$ 466Porter Airlines
Mon, 28 Sep - Mon, 5 Oct
Multiple Airlines Logo
3:50 p.m. - 12:20 a.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
8h 30m1 stop Toronto Island
Multiple Airlines Logo
6:50 a.m. - 3:10 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
8h 20m1 stop Toronto Pearson Intl
C$ 469Multiple Airlines
Thu, 1 Oct - Mon, 5 Oct
Multiple Airlines Logo
11:25 a.m. - 7:07 p.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
7h 42m1 stop Toronto Island
Multiple Airlines Logo
6:25 p.m. - 10:45 a.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
16h 20m1 stop Toronto Pearson Intl
C$ 472Multiple Airlines
Sat, 26 Sep - Sun, 27 Sep
Multiple Airlines Logo
11:25 a.m. - 5:52 p.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
6h 27m1 stop Toronto Island
Multiple Airlines Logo
6:25 p.m. - 10:45 a.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
16h 20m1 stop Toronto Pearson Intl
C$ 478Multiple Airlines
Thu, 1 Oct - Sun, 4 Oct
Porter Airlines Logo
3:50 p.m. - 9:42 p.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
5h 52m1 stop Toronto Island
Porter Airlines Logo
10:40 a.m. - 3:10 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
4h 30m1 stop Toronto Island
C$ 480Porter Airlines
Sun, 27 Sep - Sun, 11 Oct
Multiple Airlines Logo
11:20 a.m. - 12:44 a.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
13h 24m1 stop Toronto Island
Multiple Airlines Logo
5:30 a.m. - 5:43 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
12h 13m1 stop Toronto Pearson Intl
C$ 483Multiple Airlines
Thu, 10 Dec - Mon, 14 Dec
Porter Airlines Logo
11:25 a.m. - 5:52 p.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
6h 27m1 stop Toronto Island
Porter Airlines Logo
10:40 a.m. - 3:10 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
4h 30m1 stop Toronto Island
C$ 484Porter Airlines
Tue, 13 Oct - Sun, 18 Oct

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

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 Oct
IAD3:50 p.m.Washington, D.C. Dulles Intl
5h 52m
1 stop
YOW9:42 p.m.Ottawa
9 Oct
YOW10:40 a.m.Ottawa
4h 30m
1 stop
IAD3:10 p.m.Washington, D.C. Dulles Intl
C$ 456
Porter Airlines
28 Sep
IAD11:25 a.m.Washington, D.C. Dulles Intl
6h 27m
1 stop
YOW5:52 p.m.Ottawa
5 Oct
YOW10:40 a.m.Ottawa
4h 30m
1 stop
IAD3:10 p.m.Washington, D.C. Dulles Intl
C$ 466
Porter Airlines
13 Oct
IAD11:25 a.m.Washington, D.C. Dulles Intl
6h 27m
1 stop
YOW5:52 p.m.Ottawa
18 Oct
YOW10:40 a.m.Ottawa
4h 30m
1 stop
IAD3:10 p.m.Washington, D.C. Dulles Intl
C$ 484

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
13 Oct
IAD5:20 p.m.Washington, D.C. Dulles Intl
4h 32m
1 stop
YOW9:52 p.m.Ottawa
14 Oct
YOW6:00 a.m.Ottawa
8h 57m
1 stop
IAD2:57 p.m.Washington, D.C. Dulles Intl
C$ 393
Air Canada
13 Oct
IAD3:45 p.m.Washington, D.C. Dulles Intl
6h 25m
1 stop
YOW10:10 p.m.Ottawa
14 Oct
YOW9:55 a.m.Ottawa
6h 47m
1 stop
IAD4:42 p.m.Washington, D.C. Dulles Intl
C$ 415
Air Canada
6 Nov
IAD5:20 p.m.Washington, D.C. Dulles Intl
4h 32m
1 stop
YOW9:52 p.m.Ottawa
8 Nov
YOW12:05 p.m.Ottawa
4h 42m
1 stop
IAD4:47 p.m.Washington, D.C. Dulles Intl
C$ 485

momondo Fare Finder

 
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 Washington, D.C. Dulles Intl - YOW Ottawa

IADYOW

Washington, D.C. Dulles Intl

Tue 13/10

5:20 p.m.-9:52 p.m.

1 stop4h 32m

Ottawa

Wed 14/10

6:00 a.m.-2:57 p.m.

1 stop8h 57m

C$ 393

Washington, D.C.Ottawa

IAD Washington, D.C. Dulles Intl - YOW Ottawa

IADYOW

Washington, D.C. Dulles Intl

Tue 13/10

3:45 p.m.-10:10 p.m.

1 stop6h 25m

Ottawa

Wed 14/10

9:55 a.m.-4:42 p.m.

1 stop6h 47m

C$ 415
Quickest round-trip

Washington, D.C.Ottawa

IAD Washington, D.C. Dulles Intl - YOW Ottawa

IADYOW

Washington, D.C. Dulles Intl

Sun 4/10

3:50 p.m.-9:42 p.m.

1 stop5h 52m

Ottawa

Fri 9/10

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

1 stop4h 30m

C$ 456

Washington, D.C.Ottawa

IAD Washington, D.C. Dulles Intl - YOW Ottawa

IADYOW

Washington, D.C. Dulles Intl

Mon 28/9

11:25 a.m.-5:52 p.m.

1 stop6h 27m

Ottawa

Mon 5/10

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

1 stop4h 30m

C$ 466

Washington, D.C.Ottawa

IAD Washington, D.C. Dulles Intl - YOW Ottawa

IADYOW

Washington, D.C. Dulles Intl

Thu 1/10

3:50 p.m.-12:20 a.m.

1 stop8h 30m

Ottawa

Mon 5/10

6:50 a.m.-3:10 p.m.

1 stop8h 20m

C$ 469

Washington, D.C.Ottawa

IAD Washington, D.C. Dulles Intl - YOW Ottawa

IADYOW

Washington, D.C. Dulles Intl

Sat 26/9

11:25 a.m.-7:07 p.m.

1 stop7h 42m

Ottawa

Sun 27/9

6:25 p.m.-10:45 a.m.

1 stop16h 20m

C$ 472

Washington, D.C.Ottawa

IAD Washington, D.C. Dulles Intl - YOW Ottawa

IADYOW

Washington, D.C. Dulles Intl

Thu 1/10

11:25 a.m.-5:52 p.m.

1 stop6h 27m

Ottawa

Sun 4/10

6:25 p.m.-10:45 a.m.

1 stop16h 20m

C$ 478

Washington, D.C.Ottawa

IAD Washington, D.C. Dulles Intl - YOW Ottawa

IADYOW

Washington, D.C. Dulles Intl

Sun 27/9

3:50 p.m.-9:42 p.m.

1 stop5h 52m

Ottawa

Sun 11/10

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

1 stop4h 30m

C$ 480

Washington, D.C.Ottawa

IAD Washington, D.C. Dulles Intl - YOW Ottawa

IADYOW

Washington, D.C. Dulles Intl

Thu 10/12

11:20 a.m.-12:44 a.m.

1 stop13h 24m

Ottawa

Mon 14/12

5:30 a.m.-5:43 p.m.

1 stop12h 13m

C$ 483

Washington, D.C.Ottawa

IAD Washington, D.C. Dulles Intl - YOW Ottawa

IADYOW

Washington, D.C. Dulles Intl

Tue 13/10

11:25 a.m.-5:52 p.m.

1 stop6h 27m

Ottawa

Sun 18/10

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

1 stop4h 30m

C$ 484

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

Prices are currently low for flights on this route.

Typical prices usually range from C$ 604 to C$ 1,093.
The lowest price recently found on this route was C$ 393.

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$ 494. 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$ 496.

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

Our data shows that Friday is the least expensive day to fly to Ottawa. Tickets to fly out on this day can be as low as C$ 449. Flights from Washington, D.C. Dulles Intl Airport to Ottawa on a Tuesday will generally be more expensive and average around C$ 874. 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 2 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 60% 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 2026, prices for Washington, D.C. Dulles Intl Airport to Ottawa flights are approximately 34% 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$ 183

Fastest flight time

1h 41m

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$ 183. 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$ 393.
The fastest flight from Washington, D.C. Dulles Intl Airport to Ottawa takes 1h 41m
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 41m 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
Pembroke
Smiths Falls
Perth
Calabogie
Prescott
Wakefield
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
Sat 10/10
Sat 17/10
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Canada