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YOW - WAS

Find cheap flights from Ottawa to Washington, D.C. from C$ 235

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ottawa to Washington, D.C. departing on 24/5. 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
0 bags
Sat 25/5
Sat 1/6

Search hundreds of travel sites at once for deals on flights to Washington, D.C.

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ottawa to Washington, D.C., 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 Ottawa to Washington, D.C., as well as popular online travel agencies
In the last 7 days, travellers have searched 45,119,101 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

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Filter your dealsChoose cabin class, free Wi-Fi and more.

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

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ottawa to Washington, D.C. 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 and deals for you by selecting your travel dates.
Choose your dates
11:30 a.m. - 3:52 p.m.YOW-IAD
4h 22m1 stop
1:00 p.m. - 6:14 p.m.IAD-YOW
5h 14m1 stop
C$ 407Porter Airlines
Find Deal
Tue, 21 May - Tue, 28 May
11:30 a.m. - 3:52 p.m.YOW-IAD
4h 22m1 stop
1:00 p.m. - 4:29 p.m.IAD-YOW
3h 29m1 stop
C$ 409Porter Airlines
Find Deal
Mon, 20 May - Wed, 29 May
7:30 p.m. - 9:14 p.m.YOW-IAD
1h 44mdirect
10:10 p.m. - 11:49 p.m.IAD-YOW
1h 39mdirect
C$ 453Air Canada
Find Deal
Tue, 1 Oct - Tue, 8 Oct
10:40 a.m. - 12:20 p.m.YOW-DCA
1h 40mdirect
12:55 p.m. - 2:28 p.m.DCA-YOW
1h 33mdirect
C$ 453United Airlines
Find Deal
Tue, 1 Oct - Tue, 8 Oct
5:55 a.m. - 10:19 a.m.YOW-DCA
4h 24m1 stop
12:55 p.m. - 2:28 p.m.DCA-YOW
1h 33mdirect
C$ 460
Find Deal
Tue, 1 Oct - Tue, 8 Oct
7:30 p.m. - 9:13 p.m.YOW-IAD
1h 43mdirect
10:15 p.m. - 11:55 p.m.IAD-YOW
1h 40mdirect
C$ 461United Airlines
Find Deal
Tue, 21 May - Thu, 23 May
5:55 a.m. - 11:31 a.m.YOW-IAD
5h 36m1 stop
10:15 p.m. - 11:55 p.m.IAD-YOW
1h 40mdirect
C$ 467Air Canada
Find Deal
Mon, 20 May - Wed, 29 May
4:35 p.m. - 9:25 p.m.YOW-BWI
4h 50m1 stop
8:24 a.m. - 5:24 p.m.BWI-YOW
9h 00m1 stop
C$ 467
Find Deal
Wed, 22 May - Wed, 29 May
9:35 p.m. - 6:04 p.m.YOW-IAD
20h 29m2 stops
6:55 p.m. - 8:48 p.m.IAD-YOW
25h 53m2 stops
C$ 794WestJet
Find Deal
Thu, 23 May - Mon, 27 May
6:00 a.m. - 7:22 p.m.YOW-DCA
13h 22m2 stops
7:14 p.m. - 8:48 p.m.DCA-YOW
25h 34m2 stops
C$ 828WestJet
Find Deal
Tue, 21 May - Tue, 28 May

Flights from Ottawa to Washington, D.C. - Travel Insights & Trends

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

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

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for one-way flights from Ottawa to Washington, D.C..
Our data shows that the cheapest route for a one-way flight from Ottawa to Washington, D.C. cost C$ 261 and was between Ottawa and Washington, D.C. Reagan-National Airport. On average, the best prices are found if you fly this route. The average price for a return flight for this route is C$ 402.

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

The average price of all flights from Ottawa to Washington, D.C. clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Washington, D.C. on a Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Ottawa to Washington, D.C.. For your return ticket, we recommend flying on a Saturday and avoiding Fridays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Ottawa to Washington, D.C., 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 Ottawa to Washington, D.C. is March, where tickets cost C$ 407 on average. On the other hand, the most expensive months are July and August, where the average cost of tickets is C$ 621 and C$ 598 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Ottawa to Washington, D.C., removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Ottawa to Washington, D.C., you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 78 days before departure.

Which airlines provide the cheapest flights from Ottawa to Washington, D.C.?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from Ottawa to Washington, D.C. found on KAYAK was with Porter Airlines for C$ 235. Porter Airlines proposed a round-trip connection from C$ 407 and Air Canada from C$ 453.

Which airlines fly direct between Ottawa and Washington, D.C.?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Ottawa to Washington, D.C..
There are 2 airlines that fly direct from Ottawa to Washington, D.C.. They are Air Canada and United Airlines. The cheapest airline for this route is United Airlines, with the best deal found costing C$ 273. On average, the best prices for this route can be found at United Airlines.

How many flights are there between Ottawa and Washington, D.C. per day?

Each day, there are between 3 and 4 nonstop flights that take off from Ottawa and land in Washington, D.C., with an average flight time of 1h 41m. The most common departure time is 9:00 a.m. and most flights take off in the morning, while the most flights land at Washington, D.C. Dulles Intl Airport. Each week, there are 27 flights. The most frequent day of departure is Friday, when 15% of all weekly flights depart. The fewest flights depart on a Saturday.

Which cabin class options are there for flights between Ottawa and Washington, D.C.?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Ottawa to Washington, D.C. take?

Direct flights take on average 1h 38m to travel the 1,162 km between Ottawa and Washington, D.C..

What’s the earliest departure time from Ottawa to Washington, D.C.?

Early birds can take the earliest flight from Ottawa at 9:45 am and will be landing in Washington, D.C. at 11:28 am.

What’s the latest departure time from Ottawa to Washington, D.C.?

If you prefer to fly at night, the latest flight from Ottawa to Washington, D.C. jets off at 7:30 pm and lands at 9:13 pm.

Good to know

Low season

January

High season

October

Cheapest flight

C$ 235
Best time to beat the crowds but there is an average 11% increase in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from Ottawa to Washington Dulles Airport

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

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

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

    In the last 3 days, the lowest price for a flight from Ottawa to Washington, D.C. was C$ 172 for a one-way ticket and C$ 297 for a round-trip.

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

    Ottawa is served by only 1 airport and there are 2 airports in Washington, D.C.. You will leave Ottawa from Ottawa and you will be arriving in Washington, D.C. at one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl.

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

    Only Air Canada offers inflight Wi-Fi service on the Ottawa to Washington, D.C. flight route.

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

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

  • Which airline alliances offer flights from Ottawa to Washington, D.C.?

    Star Alliance is the only airline alliance operating flights between Ottawa and Washington, D.C..

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

    There are direct flights from Ottawa to Washington, D.C. on a daily basis.

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

    The two airlines most popular with KAYAK users for flights from Ottawa to Washington, D.C. are Porter Airlines and United Airlines. With an average price for the route of C$ 425 and an overall rating of 7.4, Porter Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of C$ 676 and an overall rating of 7.4.

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

    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 Ottawa to Washington, D.C..

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from Ottawa 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 Ottawa to Washington, D.C.?

    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 Washington, D.C. with an airline and back to Ottawa with another airline.

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

    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 Washington, D.C. from Ottawa up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from Ottawa to Washington, D.C.

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 261 or less one-way and C$ 469 or less round-trip.

Prefer to fly non-stop from Ottawa to Washington, D.C.?

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

Nonstop departures

Ottawa to Washington, D.C.

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

Nonstop returns

Washington, D.C. 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
See more nonstop flights

Top 3 airlines serving from Ottawa to Washington, D.C.

 
See real verified KAYAK customer reviews for airlines flying from Ottawa to Washington, D.C.. 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 Ottawa to Washington, D.C.? 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.
7.4
Porter AirlinesOverall score based on 438 reviews
7.5comfort
7.6boarding
7.4food
8.2crew
6.6entertainment
Airline reviews

First time with Porter and I can say this is best airline company in Canada. Great service, free WiFi, free snack and drinks (including beer and wine). Seats were super comfy on the Embraer jet and I appreciated the folding try table too. Staff were excellent both legs of the trip.

10.0 ExcellentJustin, Apr. 2024YVR - YYZ
Read more about Porter Airlines reviews

First time with Porter and I can say this is best airline company in Canada. Great service, free WiFi, free snack and drinks (including beer and wine). Seats were super comfy on the Embraer jet and I appreciated the folding try table too. Staff were excellent both legs of the trip.

Tight transfer in Montreal. (15 min) However, we made it, as did my luggage.

Check in was slow because of passenger ahead in Reserve line. Seats were somewhat uncomfortable.

First time with Porter. Amazing experience overall, will be my airline of choice in North America whenever possible. Liked the quality of food and how it was served but one suggestion- a hot meal on the longer flights, perhaps?

Delayed by 2.5 hours. This happened previously on my flight from YOW to YVR on Dec. 26.2023. This is a terrible airline. The reason was there was lack of ground crew. This is a known event. AVOID PORTER AIRLINES IF YOU CAN. There is a reason half the plane was empty.

The airline arrival at the downtown airport is a big plus.. Food and beverage was excellent. Their non weather related cancellation is horrible. Overall I gave the airline 7 over 10 Tips for people flying porter from Boston. The airline doesn’t have inflight entertainment No TV No WIFI. Bring your entertainment with you.

The airline arrival at the downtown airport is a big plus.. Food and beverage was excellent. Their non weather related cancellation is horrible. Overall I gave the airline 7 over 10

Wasn’t on the flight- again. Bad weather in Halifax and I was in an accident. What a poor experience to have to pay for all this flight and not be on it

I didn’t make my flight due to poor weather and I had an accident driving there. I tried to get my money back or even credit and nothing. I have an entire flight both to Florida and back that I paid for and no one will give me any money back. I know this isn’t just Porter and it’s 3rd party- however airlines should allow these companies to take money for things they don’t get. I’m so upset. Who can afford a full flight they never take?

Flight Ottawa to Toronto canceled and no crew was available to direct me on what to do. I opened a file and I wait to be compensated.

Wifi wasn't working on one of the UA flights after boarding.

It got me where I needed it to; not much more. It had no competition so that was why I chose it.

Crew was not very helpful. They forgot to serve me coffee and had to wait for a long time.It looked as if they were not very happy with what they were doing.

Plane didn’t even make it off the ground. We all had to get off and walk to a different terminal (lots of confusion) to get on a different plane. Landed fairly late, connections missed.

One of the best flying experiences I’ve ever had.

The flight cancellation and process for getting a new flight was not that clear. United also had some delays that were unexpected. I am the most disappointed by the fact that I originally bought a Lufthansa ticket, only to be flown by United.

Need to have more snacks for the duration and coffee.

Great crew, friendly. Found the trip long just sitting with no onboard entertainment

Crowded flight, but upbeat and kind crew. Pilot greeted us at door, flight attendant thanked a number of “special” passengers for their business, another addressed an eight-year old boy as “young man.” United obviously trying to up their game, but though all of that is nice and notable, flying still feels like moving along a human assembly line, being herded into one small space after another (boarding areas with too few seats, planes with limited personal space, shuttles (IAD) packed too full.

On time - really well operated flight. Friendly staff. Super impressed with United on this round trip.

It was an excellent experience, traveling from Toronto to Denver with United.

Ontime boarding. Almost 1 hour take off delay. We could have boarded slightly later since the pilots were in traffic

This was the first AC flight in a long time that we experienced no delays or frustrations. The gate attendant was extremely polite and accommodating to my husband who has Parkinson’s disease which made boarding extremely stress free. Flight departed ON TIME and was a smooth ride. If only all my AC experiences could be like this.

I didn’t like the fact that all the customs officers went to lunch so I was in line for 90 minutes due to where the staff directed me. We were told three very different reasons for why the plane was delayed. It was a crowded plane with difficult storage situations for the Carry On bags. The Air Canada airline staff were all very good and professional. I was so disappointed in my cheese and fruit box as the cheese had molded and the fruit wasn’t fresh so I couldn’t eat the majority of the food. This was the last meal I could find as the restaurants had closed when I got in to my destination. I think you could work on improving the food quality.

Once again my complaint is how close the seats are together. Also, the bathrooms were not very clean by the second half of the flight.

Excellent in flight service, perhaps the best we've ever had. Business class feels tired and needs improvement to compete with other airlines. The food looked good but tasted terrible. Check in was quick, the flight arrived early and our luggage was on our flight with us.

The staff were so kind and helpful. We flew back from NY with another airline and it was horrible. We will always stick with Air Canada as everything was far better!

The boarding process in Toronto bad as they share space with domestic flights and when those domestic flights come in you are locked out behind closed doors until they are done and then its a mad rush to get your boarding gates and board. This is not so much due to Air Canada but with the GTAA, but Air Canada could use different gates especially early morning in order to prevent such travel angst.

Terrible quality wifi and they charge a lot for it. They nickel and dime you for everything.

Not happy with Air Canada . Flight was cancelled got the run around trying to get another flight that was direct none to be found ended up going to Denver then onto Austin adding 7 hours to our trip. Was travelling with some one who had walking issues that’s why we were happy to have a direct flight then it didn’t happen adding more stress on her

Book cheap flights from Ottawa to Washington, D.C.

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Ottawa to Washington, D.C. found on KAYAK in the last 72 hours.
24/5Fri
1 stopPorter Airlines
4h 22mYOW-IAD
C$ 235
9/6Sun
1 stopPorter Airlines
6h 17mYOW-IAD
C$ 246
24/5Fri
directUnited Airlines
1h 41mYOW-IAD
C$ 253
3/6Mon
directAir Canada
1h 41mYOW-IAD
C$ 257
14/6Fri
directUnited Airlines
1h 38mYOW-DCA
C$ 257
29/9Sun
1 stopAir Canada
4h 24mYOW-DCA
C$ 270
25/5Sat
1 stop
20h 29mYOW-BWI
C$ 285
25/5Sat
2 stops
17h 04mYOW-BWI
C$ 292
14/6Fri
2 stopsWestJet
22h 15mYOW-DCA
C$ 452
9/6Sun
2 stopsWestJet
22h 56mYOW-DCA
C$ 506

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Last minute flights from Ottawa to Washington, D.C.

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Ottawa to Washington, D.C. that are departing in the next 10 days.
26/4Fri
multi-stop
22h 31mYOW-BWI
29/4Mon
multi-stop
24h 02mBWI-YOW
C$ 689
26/4Fri
multi-stopPorter Airlines
4h 22mYOW-IAD
1/5Wed
multi-stopPorter Airlines
4h 09mIAD-YOW
C$ 734
26/4Fri
multi-stop
8h 34mYOW-BWI
1/5Wed
multi-stop
13h 41mBWI-YOW
C$ 783
26/4Fri
multi-stopPorter Airlines
4h 22mYOW-IAD
28/4Sun
multi-stopPorter Airlines
6h 24mIAD-YOW
C$ 795
28/4Sun
directAir Canada
1h 43mYOW-IAD
29/4Mon
multi-stopAir Canada
4h 42mIAD-YOW
C$ 849
28/4Sun
directAir Canada
1h 44mYOW-DCA
29/4Mon
multi-stopAir Canada
6h 17mDCA-YOW
C$ 849
26/4Fri
directUnited Airlines
1h 43mYOW-IAD
28/4Sun
directUnited Airlines
1h 37mIAD-YOW
C$ 1,029
28/4Sun
directUnited Airlines
1h 43mYOW-IAD
29/4Mon
directUnited Airlines
1h 37mIAD-YOW
C$ 1,036
26/4Fri
multi-stopWestJet
11h 56mYOW-DCA
1/5Wed
multi-stopWestJet
13h 24mDCA-YOW
C$ 1,258
26/4Fri
multi-stopWestJet
16h 46mYOW-DCA
29/4Mon
multi-stopWestJet
10h 43mDCA-YOW
C$ 1,274

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Ottawa - Washington, D.C. Flights

Departure:

Ottawa (YOW)Canada

Return flight deals:

Washington, D.C. - Ottawa

Cabin classes:

C$ 1,659
C$ 1,745
C$ 898
C$ 402