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YOW - WAS

Find cheap flights from Ottawa to Washington, D.C. from C$ 250

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 14/7. 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
Tue 4/6
Tue 11/6

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 43,369,418 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
8:45 a.m. - 12:07 p.m.YOW-IAD
3h 22m1 stop
1:00 p.m. - 6:14 p.m.IAD-YOW
5h 14m1 stop
C$ 420Porter Airlines
Find Deal
Sun, 26 May - Tue, 4 Jun
8:45 a.m. - 12:07 p.m.YOW-IAD
3h 22m1 stop
5:20 p.m. - 9:29 p.m.IAD-YOW
4h 09m1 stop
C$ 421Porter Airlines
Find Deal
Sun, 26 May - Tue, 4 Jun
2:50 p.m. - 4:30 p.m.YOW-IAD
1h 40mdirect
10:20 p.m. - 11:57 p.m.IAD-YOW
1h 37mdirect
C$ 456United Airlines
Find Deal
Wed, 4 Sep - Wed, 11 Sep
10:40 a.m. - 12:18 p.m.YOW-DCA
1h 38mdirect
12:55 p.m. - 2:26 p.m.DCA-YOW
1h 31mdirect
C$ 457Air Canada
Find Deal
Sun, 9 Jun - Tue, 11 Jun
5:55 a.m. - 11:26 a.m.YOW-IAD
5h 31m1 stop
10:20 p.m. - 11:57 p.m.IAD-YOW
1h 37mdirect
C$ 464Air Canada
Find Deal
Wed, 4 Sep - Wed, 11 Sep
7:30 p.m. - 9:12 p.m.YOW-IAD
1h 42mdirect
8:30 a.m. - 12:42 p.m.IAD-YOW
4h 12m1 stop
C$ 468United Airlines
Find Deal
Wed, 4 Sep - Wed, 11 Sep
10:40 a.m. - 12:20 p.m.YOW-DCA
1h 40mdirect
6:59 a.m. - 1:13 p.m.DCA-YOW
6h 14m1 stop
C$ 472
Find Deal
Thu, 18 Jul - Sun, 21 Jul
11:05 a.m. - 9:51 p.m.YOW-BWI
10h 46m1 stop
8:18 a.m. - 2:49 p.m.BWI-YOW
6h 31m1 stop
C$ 491
Find Deal
Sat, 1 Jun - Sat, 8 Jun
6:00 a.m. - 8:24 p.m.YOW-DCA
14h 24m2 stops
11:00 a.m. - 6:52 a.m.DCA-YOW
19h 52m2 stops
C$ 799WestJet
Find Deal
Fri, 30 Aug - Tue, 3 Sep
9:35 p.m. - 12:44 p.m.YOW-BWI
39h 09m2 stops
6:00 a.m. - 8:42 p.m.BWI-YOW
14h 42m2 stops
C$ 816WestJet
Find Deal
Sun, 23 Jun - Wed, 26 Jun

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$ 380.

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 February, where tickets cost C$ 428 on average. On the other hand, the most expensive months are August and July, where the average cost of tickets is C$ 609 and C$ 588 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 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 55 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$ 250. Porter Airlines proposed a round-trip connection from C$ 420 and United Airlines from C$ 456.

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 Thursday, 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

December

Cheapest flight

C$ 250
Best time to beat the crowds (9% less expensive on average)
Most popular time to fly and prices are also 3% 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$ 183 for a one-way ticket and C$ 307 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$ 698 and an overall rating of 7.3.

  • 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$ 468 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 430 reviews
8.2Crew
7.6Boarding
7.5Comfort
6.6Entertainment
7.4Food
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.

Only water and pretzels served on six hour flight. Did not see crew rest of flight. No video screens and so no wired audio. Poor sound on plan so did not understand anything said by crew. This is a safety issue. Electrical socket did not retain charging block so could not charge phone. No video screen so could not watch movies. Phone is not a substitute.

The food that was offered based on class level of your ticket was absolutely ridiculous and disgusting. They didn't even hot tea to serve, the food was horrible. On our departure flight I was seated in premium plus economy and considering the cost of the flight the food was literally some of the worst I've ever eaten. On the return flight I sat in economy with extra leg room and was given a thin little throw "blanket" and a flimsy little pillow. The air condition was on artic and the seating arrangement wasn't really worth the money. The seat didn't recline good enough and the foot rest was laughable. Total waste.

All flights were on time and boarding was issue free

Water service would be great. The way they board is terrible. Slow passengers first😂😂 They need to smart up a bit

I like the non stop flight to Lagos. The cabin crew were great, the food was alright and the ride was smooth. The downside is there wasn’t wifi connection from Lagos to Washington as stated. The 11hrs flight, became boring at times because of no wifi.

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.

Limited snack options cause the snack vendor was on strike

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.

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.
14/7Sun
1 stopPorter Airlines
3h 22mYOW-IAD
C$ 250
30/5Thu
1 stopPorter Airlines
4h 27mYOW-IAD
C$ 252
30/5Thu
directAir Canada
1h 38mYOW-DCA
C$ 256
25/5Sat
1 stop
8h 36mYOW-BWI
C$ 260
3/6Mon
directAir Canada
1h 41mYOW-IAD
C$ 261
25/5Sat
2 stops
17h 01mYOW-BWI
C$ 276
11/6Tue
1 stopUnited Airlines
4h 29mYOW-IAD
C$ 283
11/6Tue
1 stopUnited Airlines
5h 53mYOW-DCA
C$ 283
11/6Tue
2 stopsWestJet
27h 35mYOW-DCA
C$ 469
6/6Thu
2 stopsWestJet
28h 05mYOW-DCA
C$ 471

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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.
8/5Wed
multi-stopPorter Airlines
4h 27mYOW-IAD
28/8Wed
multi-stopPorter Airlines
5h 14mIAD-YOW
C$ 605
8/5Wed
directUnited Airlines
1h 43mYOW-IAD
28/8Wed
directUnited Airlines
1h 37mIAD-YOW
C$ 646
8/5Wed
direct
1h 38mYOW-DCA
28/8Wed
direct
1h 33mDCA-YOW
C$ 646
8/5Wed
multi-stopUnited Airlines
5h 38mYOW-IAD
28/8Wed
directUnited Airlines
1h 37mIAD-YOW
C$ 666
8/5Wed
multi-stop
4h 22mYOW-DCA
28/8Wed
direct
1h 33mDCA-YOW
C$ 666
8/5Wed
multi-stop
13h 14mYOW-DCA
28/8Wed
multi-stop
6h 14mDCA-YOW
C$ 681
7/5Tue
multi-stopPorter Airlines
4h 27mYOW-IAD
10/5Fri
multi-stopPorter Airlines
4h 09mIAD-YOW
C$ 736
8/5Wed
directAir Canada
1h 38mYOW-DCA
10/5Fri
directAir Canada
1h 31mDCA-YOW
C$ 828
8/5Wed
multi-stopWestJet
28h 11mYOW-DCA
28/8Wed
multi-stopWestJet
10h 42mDCA-YOW
C$ 1,065
8/5Wed
multi-stopWestJet
28h 11mYOW-DCA
10/5Fri
multi-stopWestJet
13h 49mDCA-YOW
C$ 1,277

Search by stops

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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$ 966
C$ 898
C$ 379