WAS - YOW

C$ 157 Find Cheap Flights from Washington, D.C. 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 Washington, D.C. to Ottawa departing on 25/3. 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
1 adult, Economy, 0 bags

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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Everything you should know

Cheapest round-trip
C$ 338
Multiple Airlines
Mon 16/2Wed 18/2
BWI - YOW • 1 stop
Cheapest direct flights
C$ 411
Typical prices: C$ 205-C$ 238
Air Canada
Fri 13/3Fri 20/3
DCA - YOW • Direct
Our travellers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
United's Economy Plus offers 15 cm more legroom.
DCA is conveniently located 8 km from downtown D.C.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Porter Airlines
Cheapest • from C$ 403 (round-trip)
Porter Airlines
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
DCA
-
YOW
Cheapest • 54% average savings
DCA
-
YOW
Most popular
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 56% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Ottawa!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Washington, D.C. to Ottawa (WAS-YOW)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Washington, D.C. to Ottawa

Mon, 16 Feb - Wed, 18 Feb
Multiple Airlines Logo
12:30 p.m. - 5:25 p.m.
BWI
-
YOW
28h 55m
1 stop
Multiple Airlines Logo
4:15 p.m. - 9:06 a.m.
YOW
-
BWI
16h 51m
1 stop
C$ 338Multiple Airlines
Wed, 11 Mar - Wed, 18 Mar
Multiple Airlines Logo
12:30 p.m. - 12:25 a.m.
BWI
-
YOW
11h 55m
1 stop
Multiple Airlines Logo
4:15 p.m. - 8:41 a.m.
YOW
-
BWI
16h 26m
1 stop
C$ 362Multiple Airlines
Thu, 26 Feb - Thu, 5 Mar
Multiple Airlines Logo
12:30 p.m. - 5:25 p.m.
BWI
-
YOW
28h 55m
1 stop
Multiple Airlines Logo
4:15 p.m. - 8:26 a.m.
YOW
-
BWI
16h 11m
1 stop
C$ 369Multiple Airlines
Wed, 11 Mar - Wed, 18 Mar
Porter Airlines Logo
11:40 a.m. - 3:04 p.m.
IAD
-
YOW
3h 24m
1 stop
Porter Airlines Logo
6:45 a.m. - 10:24 a.m.
YOW
-
IAD
3h 39m
1 stop
C$ 403Porter Airlines
Fri, 13 Mar - Fri, 20 Mar
Air Canada Logo
12:55 p.m. - 2:30 p.m.
DCA
-
YOW
1h 35mdirect
Air Canada Logo
10:30 a.m. - 12:19 p.m.
YOW
-
DCA
1h 49mdirect
C$ 411Air Canada
Mon, 23 Feb - Mon, 2 Mar
Air Canada Logo
12:55 p.m. - 2:30 p.m.
DCA
-
YOW
1h 35mdirect
Air Canada Logo
10:30 a.m. - 12:19 p.m.
YOW
-
DCA
1h 49mdirect
C$ 413Air Canada
Mon, 23 Feb - Mon, 2 Mar
Air Canada Logo
12:55 p.m. - 2:30 p.m.
DCA
-
YOW
1h 35mdirect
Air Canada Logo
5:45 a.m. - 10:21 a.m.
YOW
-
DCA
4h 36m
1 stop
C$ 420Air Canada
Fri, 13 Mar - Fri, 20 Mar
Air Canada Logo
6:00 a.m. - 9:41 a.m.
DCA
-
YOW
3h 41m
1 stop
Air Canada Logo
10:30 a.m. - 12:19 p.m.
YOW
-
DCA
1h 49mdirect
C$ 421Air Canada
Thu, 16 Apr - Mon, 20 Apr
Porter Airlines Logo
6:30 p.m. - 10:29 p.m.
IAD
-
YOW
3h 59m
1 stop
Porter Airlines Logo
6:50 a.m. - 10:24 a.m.
YOW
-
IAD
3h 34m
1 stop
C$ 429Porter Airlines
Thu, 26 Mar - Fri, 27 Mar
Porter Airlines Logo
11:40 a.m. - 4:44 p.m.
IAD
-
YOW
5h 04m
1 stop
Porter Airlines Logo
1:20 p.m. - 5:14 p.m.
YOW
-
IAD
3h 54m
1 stop
C$ 433Porter Airlines
Booking Insights

KAYAK's insights & trends for Washington, D.C. to Ottawa flights

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

What is the cheapest Washington, D.C. to Ottawa flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Washington, D.C. to Ottawa costs C$ 445 on the route between Washington, D.C. Reagan-National Airport (DCA) and Ottawa (YOW). Over the past month, this route was, on average, 54% cheaper than other Washington, D.C.-Ottawa routes. It is also the most popular route.

What’s the cheapest day of the week to fly from Washington, D.C. to Ottawa?

The average price of all round-trip flights from Washington, D.C. to Ottawa clicked on KAYAK for each day over the last 12 months.

When flying from Washington, D.C. to Ottawa, you should consider leaving on a Friday and avoid Sundays if you are looking for the best rates. For your return to Washington, D.C., you’ll find the best rates on Fridays and the most expensive ones on Thursdays.

What is the cheapest month to fly from Washington, D.C. 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. 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. to Ottawa is January, where tickets cost C$ 243 (return) on average. On the other hand, the most expensive months are December and March, where the average cost of round-trip tickets is C$ 826 and C$ 652 respectively.

Can I save money by flying with a layover from Washington, D.C. to Ottawa?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at C$ 469 on average.

Expert advice

Expert advice for your flight from Washington, D.C. to Ottawa

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines, Air Canada and IAD

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.

Mark Stachiew

Mark Stachiew

Expert on YOW

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.

Ramsey Qubein

Ramsey Qubein

Expert on DCA

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Good to know

Low seasonNovember
Cheapest flightC$ 157
Best time to beat the crowds but there is an average 12% increase in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from Baltimore to Ottawa

When to book flights from Washington, D.C. to Ottawa

Are your dates flexible? Find out the best times to travel from Washington, D.C. 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 flights from Washington, D.C. to Ottawa

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. to Ottawa was C$ 157 for a one-way ticket and C$ 338 for a round-trip.

  • Which airports will I be using when flying from Washington, D.C. to Ottawa?

    Washington, D.C. has 2 major airports: Washington, D.C. Reagan-National and Washington, D.C. Dulles Intl. Ottawa is the only airport in Ottawa. You’ll usually find the cheapest deals if you fly from Reagan Washington National Airport.

  • Which airlines offer Wi-Fi service onboard planes from Washington, D.C. to Ottawa?

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

  • Which aircraft models fly most regularly from Washington, D.C. to Ottawa?

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

  • On which days can I fly direct from Washington, D.C. to Ottawa?

    There are direct flights from Washington, D.C. 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$ 652 and an overall rating of 7.9, Porter Airlines is the most popular choice. Air Canada is also a great choice for the route, with an average price of C$ 731 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Washington, D.C. 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, D.C. to Ottawa.

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

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

  • What is the Hacker Fare option on flights from Washington, D.C. 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, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. 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, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Washington, D.C. to Ottawa

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 173 or less one-way.

Prefer to fly direct from Washington, D.C. to Ottawa?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Washington, D.C. to Ottawa.
Find which airlines fly direct from Washington, D.C. to Ottawa Airport, which days they fly and book direct flights.

Direct departures

Washington, D.C. to Ottawa

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

United Airlines

United Airlines

Sunday

Air Canada,United Airlines

Air Canada,United Airlines

See more nonstop flights

Direct returns

Ottawa to Washington, D.C.

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

United Airlines

United Airlines

Sunday

Air Canada,United Airlines

Air Canada,United Airlines

See more nonstop flights

Reviews of the top airlines flying from Washington, D.C. 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 Washington, D.C. 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.
7.9
Porter AirlinesOverall score based on 412 reviews
6.9Entertainment
8.6Crew
8.2Boarding
7.9Comfort
7.5Food
Airline reviews

The Flight took off 2hrs late because there was no pilot showing up when the flight was ready to board.. Though the cabin crew was present and had prepared the plane, the FO turned around after 15 min and went away. A crew to fly the plane finally arrived over an hour later and we were able to board 1h30 min later than planned time... until everything was loaded, we left 2h late from the gate. This was a small plane, so don't expect any Entertainment... Wi-Fi access on board would work, but took an awful amount of time to figure out and get it work (I'm an IT person). Flying as VIPorter customer, I was expecting at least some warm meal, but everything served was just cold.. except the coffee maybe. Even in so-called VIPorter seats, space is cramped and trays are so tiny, you can barely setup your food. Flight caught up during the coast-to-coast crossing and was able to recoup about 45 min from the delay.. still arrived very late in Vancouver and had to wait a long time to get our registered bags. Let's see how the return flight will be in a few days..

6.0 GoodBeat, Jan 2026
YUL - YVR
Read more Porter Airlines reviews

The Flight took off 2hrs late because there was no pilot showing up when the flight was ready to board.. Though the cabin crew was present and had prepared the plane, the FO turned around after 15 min and went away. A crew to fly the plane finally arrived over an hour later and we were able to board 1h30 min later than planned time... until everything was loaded, we left 2h late from the gate. This was a small plane, so don't expect any Entertainment... Wi-Fi access on board would work, but took an awful amount of time to figure out and get it work (I'm an IT person). Flying as VIPorter customer, I was expecting at least some warm meal, but everything served was just cold.. except the coffee maybe. Even in so-called VIPorter seats, space is cramped and trays are so tiny, you can barely setup your food. Flight caught up during the coast-to-coast crossing and was able to recoup about 45 min from the delay.. still arrived very late in Vancouver and had to wait a long time to get our registered bags. Let's see how the return flight will be in a few days..

The flight booking code given by Kayak was not the correct one used by the airline. I had to call to get the correct one. It was never sent to me. Totally unacceptable!

Due to a known technical error that Porter has not fixed in over a year, I was unable to check in the children on my reservation online and had to do it at the airport. Upon check in, there were no seats together, which was an issue as we had young children. The gate agent did manage to seat us together by moving other passengers, which was appreciated, but the other passengers were never informed, leading to confusion and delay upon boarding. The flight was over an hour late; no explanation or apology was ever issued. The bags on Porter take a long time to arrive--over half an hour at Hamilton on my inbound flight, and not much better on my return to Edmonton.

Much roomer than air Canada! Great flight for the price. No complaints

On my e-boarding pass it shows free wifi, yet the plane I was on didn’t have wifi. Please remove false advertising from your website and boarding passes

As a first time flyer with Porter I was happy with the service and comfort of the airline.

3.5 hr delay for a 1 hr work flight. No information as to why the delay until 20 mins before boarding.

Other than wifi no on board entertainment. Will use them again, roomier seats than other airlines and snacks and beverages, better than average

I like it, but the food isn't good. They need to offer more simple things. This bowls that have so many things your don't know what your are eating. The milenials like it, no the rest. And last but not least, they allowed somebody have a huge dog, vey agressive and fidgety in the flight. That's horrible. No animals should be allowed inside the airplane, what about allergies, etc

Smaller plane. Food and bar service for free is amazing. Drinks were in glass not plastic cups.

I travelled in Business class for the first time and wish I could do that again.

Super experience. Earlier than schedule departure and arrival. Baggage handling was very good

Plane left an hour late, I missed my connection and my bow case was never even loaded on the plane in VA. I deal with this type of nonsense everytime I fly air canada.

Check in agent was very helpful and polite. He helped me board the earlier flight back home instead of waiting 2 hours at the airport for the next flight

Our flight was canceled at the last minute. Someone on the flight said the exact same thing happened to her the day before. I will say they helped us book a flight on another airline so that we could still make our vacation with little delay.

the seats aren't the most comfy -- too little padding and I could feel whatever the passenger behind me was doing. Otherwise, it's all good.

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

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.

Everything you need to know for your flight from Washington, D.C. to Ottawa

Information on your arrival and departure airports