IAD - YOW

C$ 207 Find Cheap Flights from Washington Dulles Airport to Ottawa

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Ottawa departing on 17/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult

KAYAK searches hundreds of travel sites at once for deals on flights to Ottawa

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Ottawa, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Ottawa, as well as popular online travel agencies
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Cheap Flight Deals from Dulles Intl to Ottawa (IAD-YOW)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Ottawa that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Dulles Intl to Ottawa

KAYAK's recommended round-trip deals from the most popular airlines that fly from Dulles Intl to Ottawa.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
Porter Airlines Logo
4:20 p.m. - 7:53 p.m.IAD-YOW
3h 33m1 stop
Porter Airlines Logo
10:15 a.m. - 3:06 p.m.YOW-IAD
4h 51m1 stop
C$ 435Porter Airlines
Find Deal
Sat, 14 Jun - Mon, 16 Jun
 Logo
4:20 p.m. - 12:22 a.m.IAD-YOW
8h 02m1 stop
 Logo
5:55 a.m. - 3:06 p.m.YOW-IAD
9h 11m1 stop
C$ 452
Find Deal
Tue, 27 May - Fri, 30 May
 Logo
4:20 p.m. - 12:22 a.m.IAD-YOW
8h 02m1 stop
 Logo
5:55 a.m. - 3:06 p.m.YOW-IAD
9h 11m1 stop
C$ 453
Find Deal
Tue, 27 May - Fri, 30 May
Porter Airlines Logo
4:20 p.m. - 9:03 p.m.IAD-YOW
4h 43m1 stop
Porter Airlines Logo
9:35 a.m. - 3:06 p.m.YOW-IAD
5h 31m1 stop
C$ 456Porter Airlines
Find Deal
Fri, 11 Jul - Sat, 19 Jul
Air Canada Logo
8:18 a.m. - 9:58 a.m.IAD-YOW
1h 40mdirect
Air Canada Logo
7:29 p.m. - 9:04 p.m.YOW-IAD
1h 35mdirect
C$ 571Air Canada
Find Deal
Mon, 2 Jun - Tue, 10 Jun
Air Canada Logo
8:18 a.m. - 9:58 a.m.IAD-YOW
1h 40mdirect
Air Canada Logo
11:05 a.m. - 4:19 p.m.YOW-IAD
5h 14m1 stop
C$ 578Air Canada
Find Deal
Sun, 1 Jun - Tue, 3 Jun
United Airlines Logo
8:18 a.m. - 9:58 a.m.IAD-YOW
1h 40mdirect
United Airlines Logo
7:29 p.m. - 9:04 p.m.YOW-IAD
1h 35mdirect
C$ 730United Airlines
Find Deal
Tue, 27 May - Fri, 30 May
United Airlines Logo
5:10 p.m. - 6:52 p.m.IAD-YOW
1h 42mdirect
United Airlines Logo
7:29 p.m. - 9:13 p.m.YOW-IAD
1h 44mdirect
C$ 922United Airlines
Find Deal
Sat, 10 May - Tue, 13 May
WestJet Logo
7:30 a.m. - 12:22 a.m.IAD-YOW
16h 52m2 stops
WestJet Logo
5:15 p.m. - 5:54 p.m.YOW-IAD
24h 39m2 stops
C$ 1,087WestJet
Find Deal
Tue, 27 May - Thu, 29 May
WestJet Logo
1:00 p.m. - 12:22 a.m.IAD-YOW
11h 22m2 stops
WestJet Logo
6:00 a.m. - 5:54 p.m.YOW-IAD
11h 54m1 stop
C$ 1,127WestJet
Find Deal
Wed, 25 Jun - Wed, 16 Jul

Expert advice for your flight from Dulles Intl to Ottawa

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are specific to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
United Airlines

United's Priority Boarding in Zone 2 helps avoid gate-checking carry-ons on busy flights.


United offers Wi-Fi with free messaging; check coverage map before purchasing full internet.

Air Canada

Air Canada's Preferred Economy seats offer up to 10 cm extra legroom for a fee.


Air Canada provides live TV on some North American flights, enhancing in-flight entertainment.

Read more about Air Canadaby Stefanie Waldek
Airports
IAD

Dulles offers the AeroTrain and mobile lounges for quick transit between terminals. Plan your route using an airport map for a smooth departure.

Read more about IADby Stefanie Waldek
YOW

At YOW, taxis and rideshares are available at pillars 12 and 13 on the arrivals level for convenient city access.

Read more about YOWby Mark Stachiew
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines, Air Canada and IAD

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Mark Stachiew

Mark Stachiew

Expert on YOW

Mark Stachiew

Mark Stachiew

Mark Stachiew has been exploring the world and writing about it for more than 30 years. His travel stories have appeared in numerous newspapers, magazines and online publications in Canada, the United States and beyond.

Read more

KAYAK's insights & trends for Dulles Intl to Ottawa flights

Get data-powered insights and trends into flights from Dulles Intl to Ottawa to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Washington Dulles Airport to Ottawa?

The average price of all round-trip flights from Washington, D.C. Dulles Intl Airport to Ottawa clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Ottawa on a Saturday and more expensive on a Monday. On your return trip to Washington Dulles Airport, you should consider flying back on a Friday, and avoid Sundays for better deals.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Ottawa?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Ottawa, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Washington, D.C. Dulles Intl Airport to Ottawa is April, where tickets cost C$ 402 (return) on average. On the other hand, the most expensive months are September and May, where the average cost of round-trip tickets is C$ 672 and C$ 655 respectively.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Ottawa?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Ottawa, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to Ottawa, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low season

January

High season

August

Cheapest flight

C$ 207
Best time to beat the crowds but there is an average 11% increase in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Washington Dulles Airport to Ottawa

When to book flights from Dulles Intl to Ottawa

Are your dates flexible? Find out the best times to travel from Dulles Intl to Ottawa based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington Dulles Airport to Ottawa flights

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Ottawa?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Ottawa was C$ 150 for a one-way ticket and C$ 315 for a round-trip.

  • Which airlines offer Wi-Fi service onboard planes from Washington Dulles Airport to Ottawa?

    Air Canada, and American Airlines offer inflight Wi-Fi service on the Washington Dulles Airport to Ottawa flight route.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Ottawa?

    The Canadair (Bombardier) Regional Jet CRJ-550 is the aircraft model that flies most regularly on the Washington Dulles Airport to Ottawa flight route.

  • Which airline alliances offer flights from Washington Dulles Airport to Ottawa?

    Star Alliance is the only airline alliance operating flights between Washington Dulles Airport and Ottawa.

  • On which days can I fly direct from Washington Dulles Airport to Ottawa?

    There are direct flights from Washington Dulles Airport to Ottawa on a daily basis.

  • Which is the best airline for flights from Washington, D.C. to Ottawa, Porter Airlines or Air Canada?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Ottawa are Porter Airlines and Air Canada. With an average price for the route of C$ 486 and an overall rating of 8.0, Porter Airlines is the most popular choice. Air Canada is also a great choice for the route, with an average price of C$ 548 and an overall rating of 7.0.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Ottawa?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Ottawa.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Ottawa?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ottawa from Washington Dulles Airport is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Ottawa?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ottawa with an airline and back to Washington Dulles Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Ottawa?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ottawa from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Prefer to fly direct from Washington Dulles Airport to Ottawa?

Find which airlines fly direct from Washington, D.C. Dulles Intl Airport to Ottawa Airport, which days they fly and book direct flights.

Direct departures

Washington, D.C. Dulles Intl to Ottawa

Monday

Air Canada,Avianca,United Airlines

Air Canada,Avianca, +1 more

Tuesday

Air Canada,Avianca,United Airlines

Air Canada,Avianca, +1 more

Wednesday

Air Canada,Avianca,United Airlines

Air Canada,Avianca, +1 more

Thursday

Air Canada,Avianca,United Airlines

Air Canada,Avianca, +1 more

Friday

Air Canada,Avianca,United Airlines

Air Canada,Avianca, +1 more

Saturday

Air Canada,Avianca,United Airlines

Air Canada,Avianca, +1 more

Sunday

Air Canada,Avianca,United Airlines

Air Canada,Avianca, +1 more

See more nonstop flights

Direct returns

Ottawa to Washington, D.C. Dulles Intl

Monday

Air Canada,United Airlines

Air Canada,United Airlines

Tuesday

Air Canada,United Airlines

Air Canada,United Airlines

Wednesday

Air Canada,United Airlines

Air Canada,United Airlines

Thursday

Air Canada,United Airlines

Air Canada,United Airlines

Friday

Air Canada,United Airlines

Air Canada,United Airlines

Saturday

Air Canada,Avianca,United Airlines

Air Canada,Avianca, +1 more

Sunday

Air Canada,Avianca,United Airlines

Air Canada,Avianca, +1 more

See more nonstop flights
See more nonstop flights

Top airlines flying from Dulles Intl to Ottawa

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Ottawa. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to Ottawa? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Porter AirlinesOverall score based on 284 reviews
7.0Entertainment
8.1Comfort
8.8Crew
8.2Boarding
7.6Food
Airline reviews

It was amazing although they did bump us up to the front which gave us more leg room and a meal. The service was great! The staff were friendly. :)

10.0 ExcellentDiane, Apr 2025YYZ - TPA
Read more Porter Airlines reviews

It was amazing although they did bump us up to the front which gave us more leg room and a meal. The service was great! The staff were friendly. :)

Overall very good... staff were friendly and helpful. boarding was good for the most part, but a little hard to get our carry-on bags on there.... I think people should be directed to keep their coats and small bags with them until all the carry-ons are loaded, and then, if there is space, they can put their small bags and coats up top.. makes it much easier to put baggage up. i loved the internet feature, but the entertainment was not there unless you have your own Netflix or similar platform. My chair did not recline, which was very annoying, and the arms won't go up near the isle, which makes it tough to get in and out of the seat.

Staff were excellant. Only snacks served. Some turbulence so we were offered Free beer or wine.

The staff is always great. Just the fact that our flight was the only one delayed from Halifax when all other carries were still flying. It happen a year ago out of Toronto as well. All others were flying but our flight got cancelled 1 hr before the time of departure.

The only issue had when i mentioned about comfort was the man beside me was on the larger side and took about 1/3 of my seat where i was pressed against the wall/window of the plane for the trip.

The check-in staff, boarding staff, and flight crew were all very friendly. Really miss the Porter lounge in Ottawa.

Thanks for giving a beer to everyone in the seat infront of me and then telling me that I can’t have one because they are going to land. I guess I need to pay for a seat and then pick one in the very front of the plane

The flight was delayed by more than one hour. The terminal was consequently overcrowded and hot. We lost our car reservation and hit rush hour traffic in Boston, which added two hours stuck in traffic to our trip.

Awesome, the whole way through. Thank you, this is the new Canadian Airline benchmark.

We were given a complimentary seat upgrade which was so unexpected but so lovely!

This flight didn't happen for me because of overbooking.

Terrible experience, flight was delayed both ways. Limited compensation for the 5+ hour delay. Will not be flying Air Canada Rouge, and don’t recommend you do either.

Everything was simple and easy. The lady at the gate was super friendly, I wish I had her name to share. She's a little older, dark-haired. You can tell she likes her job and would be a great influence on any young people training with her.

During the pre-departure safety briefing, the flight attendants rushed through the mandatory safety announcements in both official languages, making it difficult for passengers to clearly understand the instructions. Given the importance of these messages for passenger safety, this lack of clarity was concerning. Perhaps use a recoded message to alleviate this concern. Additionally, the flight attendants appeared to lack the professional attentiveness typically expected during a flight. Rather than focusing on timely and courteous service, they seemed more engaged in personal conversations than in addressing the needs of passengers. I hope this feedback is taken constructively and helps in maintaining the high standards of professionalism and care that travelers expect from a national carrier: AC.

Service is pretty good. Sandwiches have to be purchased but I’ve bought my own food. Seat was comfortable and various movies to chose from.

The flight was delayed at the last moment quoting an absurd weather reason. This delay led to an issue with my connecting flight. I was made to run (literary) from this flight to the next one ( as they preponed departure. I was still in my DCA to YYZ flight when the boarding started for the next connecting flight. After my sprint to get the connecting flight, found that no place for my carry on. Had to sit for 3 hours with my back-pack on my lap , it was the most uncomfortable and inconvenient journey with little to no empathy shown by cabin crew in both flights. Another poor show from Air Canada!! Cant help because of lack of options !!

One leg of the flight arrived late which necessitated a rebooking on the next leg. Although there were no major weather events in play, best choice offered was a 7 hour wait in the Vancouver airport for a 4 hour totally packed red eye flight to Ottawa. No opportunities to return earlier via other major hubs like Toronto or Montreal. Felt very much like national routes were no longer well supported. Adding insult to injury, entertainment system for my seat was out of order. Thought I might use wi-fi, but discovered it would cost $10 per hour! Paid a lot for the flight as it was over the holiday period. Probably won't be doing that again.

Made me check my carry on despite there being dozens of empty bins when I boarded which significantly inconvenienced me.

Your survey should include a "Not Applicable" response for those elements that were not utilized, such as food (unless your want me to rate the cookie I received) and the entertainment (unless you want me to rate the emergency landing presentation). Boarding was late, the plane took-off almost an hour late, and the gate to board changed five times while I was waiting there. At 1:00 pm the plane had not yet approached the gate for passengers to load, yet the information board indicated that the take-off would be 12:30 pm and its status was "on time". Curious.

The people are great! The trip to Japan is simply never ending!!! Not the problem of the airlines, though.

Everything you need to know for your flight from Dulles Intl to Ottawa

Information on your arrival and departure airports

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