Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Washington, D.C. Dulles Intl Airport to Ottawa from C$ 134

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 5/5. 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

Discover deals from 900+ travel sites with momondo.

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.

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

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to Ottawa.
 Logo
4:20 p.m. - 7:53 p.m.IAD-YOW
3h 33m1 stop
 Logo
2:35 p.m. - 9:08 p.m.YOW-IAD
6h 33m1 stop
C$ 312
Find Deal
Sat, 3 May - Tue, 6 May
Porter Airlines Logo
4:20 p.m. - 8:38 p.m.IAD-YOW
4h 18m1 stop
Porter Airlines Logo
10:15 a.m. - 3:06 p.m.YOW-IAD
4h 51m1 stop
C$ 313Porter Airlines
Find Deal
Sun, 4 May - Thu, 8 May
 Logo
4:20 p.m. - 7:53 p.m.IAD-YOW
3h 33m1 stop
 Logo
2:35 p.m. - 9:08 p.m.YOW-IAD
6h 33m1 stop
C$ 315
Find Deal
Sat, 17 May - Sat, 24 May
Porter Airlines Logo
4:20 p.m. - 8:38 p.m.IAD-YOW
4h 18m1 stop
Porter Airlines Logo
10:15 a.m. - 3:06 p.m.YOW-IAD
4h 51m1 stop
C$ 333Porter Airlines
Find Deal
Sun, 4 May - Fri, 9 May
Air Canada Logo
8:17 a.m. - 9:58 a.m.IAD-YOW
1h 41mdirect
Air Canada Logo
9:50 a.m. - 11:33 a.m.YOW-IAD
1h 43mdirect
C$ 370Air Canada
Find Deal
Sun, 4 May - Thu, 8 May
Air Canada Logo
8:17 a.m. - 9:58 a.m.IAD-YOW
1h 41mdirect
Air Canada Logo
9:05 a.m. - 1:14 p.m.YOW-IAD
4h 09m1 stop
C$ 378Air Canada
Find Deal
Sun, 4 May - Sat, 10 May
United Airlines Logo
10:18 p.m. - 4:43 p.m.IAD-YOW
18h 25m2 stops
United Airlines Logo
6:10 p.m. - 7:04 a.m.YOW-IAD
12h 54m2 stops
C$ 875United Airlines
Find Deal
Tue, 10 Jun - Fri, 13 Jun
United Airlines Logo
10:19 p.m. - 4:43 p.m.IAD-YOW
18h 24m2 stops
United Airlines Logo
5:50 p.m. - 7:04 a.m.YOW-IAD
13h 14m2 stops
C$ 877United Airlines
Find Deal
Tue, 20 May - Mon, 30 Jun
WestJet Logo
10:09 a.m. - 12:22 a.m.IAD-YOW
14h 13m2 stops
WestJet Logo
6:00 a.m. - 5:54 p.m.YOW-IAD
11h 54m1 stop
C$ 1,176WestJet
Find Deal
Thu, 8 May - Fri, 16 May
WestJet Logo
3:37 p.m. - 12:22 a.m.IAD-YOW
8h 45m2 stops
WestJet Logo
12:20 p.m. - 5:54 p.m.YOW-IAD
29h 34m2 stops
C$ 1,192WestJet
Find Deal
Thu, 8 May - Tue, 13 May

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
4 May
IAD8:17 a.m.Washington, D.C. Dulles Intl
1h 41m
YOW9:58 a.m.Ottawa
8 May
YOW9:50 a.m.Ottawa
1h 43m
IAD11:33 a.m.Washington, D.C. Dulles Intl
Air Canada
4 May
IAD8:17 a.m.Washington, D.C. Dulles Intl
1h 41m
YOW9:58 a.m.Ottawa
10 May
YOW9:05 a.m.Ottawa
4h 09m
1 stop
IAD1:14 p.m.Washington, D.C. Dulles Intl
Air Canada
4 May
IAD8:17 a.m.Washington, D.C. Dulles Intl
1h 41m
YOW9:58 a.m.Ottawa
9 May
YOW5:15 a.m.Ottawa
4h 24m
1 stop
IAD9:39 a.m.Washington, D.C. Dulles Intl

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
10 Jun
IAD10:18 p.m.Washington, D.C. Dulles Intl
18h 25m
2 stops
YOW4:43 p.m.Ottawa
13 Jun
YOW6:10 p.m.Ottawa
12h 54m
2 stops
IAD7:04 a.m.Washington, D.C. Dulles Intl
United Airlines
20 May
IAD10:19 p.m.Washington, D.C. Dulles Intl
18h 24m
2 stops
YOW4:43 p.m.Ottawa
30 Jun
YOW5:50 p.m.Ottawa
13h 14m
2 stops
IAD7:04 a.m.Washington, D.C. Dulles Intl
United Airlines
5 May
IAD9:00 a.m.Washington, D.C. Dulles Intl
13h 05m
2 stops
YOW10:05 p.m.Ottawa
9 May
YOW6:15 p.m.Ottawa
12h 56m
2 stops
IAD7:11 a.m.Washington, D.C. Dulles Intl

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$ 441. 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$ 443.

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$ 244. Flights from Washington, D.C. Dulles Intl Airport to Ottawa on a Sunday will generally be more expensive and average around C$ 993. 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 evening. Flights from Washington, D.C. Dulles Intl Airport to Ottawa during this time can be as low as C$ 296. In the afternoon is when there is more demand to fly to Ottawa, so prices are often more expensive at around C$ 743 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

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. Dulles Intl Airport when booking 10 weeks ahead of your departure date. In general, you can expect to find flights to Ottawa for around C$ 565 when searching 10 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ottawa from Washington, D.C. Dulles Intl Airport for as low as C$ 380 on momondo.

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.

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

As of April 2025, prices for Washington, D.C. Dulles Intl Airport to Ottawa flights are approximately 4% 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$ 134

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$ 134. 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$ 312.
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)

  • 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 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$ 235Free CancellationRating
7.0
9,022 reviews
Search Air Canada flights
Porter AirlinesPriceFrom C$ 406Free CancellationRating
7.9
279 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$ 164 round-trip. Over the 21 Air Canada flights for this route in a normal week, average airfare is usually C$ 396 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
Brockville
Pembroke
Wakefield
Smiths Falls
Calabogie
Perth
Petawawa
Winchester
Prescott

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
From?
To?
Tue 8/4
Tue 15/4

Find better results for your trip to Canada