C$ 200 Find Cheap Flights from Ottawa to District of Columbia

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 District of Columbia departing on 12/9. 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

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ottawa to District of Columbia, 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 District of Columbia, as well as popular online travel agencies
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Best District of Columbia Flight Deals from Ottawa

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Washington, D.C.
Washington, D.C.1 stopC$ 327
Washington, D.C.
Washington, D.C.1 stopC$ 327

Cheap Flights from Ottawa to District of Columbia

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ottawa to District of Columbia 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 Ottawa to District of Columbia

Sun, 14 Sep - Fri, 19 Sep
Porter Airlines Logo
8:35 a.m. - 3:06 p.m.YOW-IAD
6h 31m1 stop
Porter Airlines Logo
4:20 p.m. - 8:34 p.m.IAD-YOW
4h 14m1 stop
C$ 327Porter Airlines
Find Deal
Sat, 30 Aug - Thu, 4 Sep
Porter Airlines Logo
9:35 a.m. - 2:56 p.m.YOW-IAD
5h 21m1 stop
Porter Airlines Logo
11:35 a.m. - 5:04 p.m.IAD-YOW
5h 29m1 stop
C$ 349Porter Airlines
Find Deal
Mon, 8 Sep - Fri, 12 Sep
Air Canada Logo
10:25 a.m. - 12:08 p.m.YOW-DCA
1h 43mdirect
Air Canada Logo
6:00 a.m. - 10:24 a.m.DCA-YOW
4h 24m1 stop
C$ 379Air Canada
Find Deal
Mon, 8 Sep - Fri, 12 Sep
Air Canada Logo
5:55 p.m. - 10:34 p.m.YOW-DCA
4h 39m1 stop
Air Canada Logo
6:00 a.m. - 10:24 a.m.DCA-YOW
4h 24m1 stop
C$ 388Air Canada
Find Deal
Sat, 13 Sep - Sun, 14 Sep
Lufthansa Logo
7:29 p.m. - 9:12 p.m.YOW-IAD
1h 43mdirect
Lufthansa Logo
6:20 a.m. - 11:45 a.m.IAD-YOW
5h 25m1 stop
C$ 393Lufthansa
Find Deal
Sat, 13 Sep - Sun, 14 Sep
United Airlines Logo
2:48 p.m. - 8:41 p.m.YOW-IAD
5h 53m1 stop
United Airlines Logo
8:16 a.m. - 9:58 a.m.IAD-YOW
1h 42mdirect
C$ 397United Airlines
Find Deal
Thu, 21 Aug - Thu, 28 Aug
United Airlines Logo
2:45 p.m. - 4:28 p.m.YOW-IAD
1h 43mdirect
United Airlines Logo
8:16 a.m. - 9:58 a.m.IAD-YOW
1h 42mdirect
C$ 422United Airlines
Find Deal
Thu, 21 Aug - Mon, 25 Aug
Lufthansa Logo
7:29 p.m. - 9:12 p.m.YOW-IAD
1h 43mdirect
Lufthansa Logo
8:16 a.m. - 9:58 a.m.IAD-YOW
1h 42mdirect
C$ 448Lufthansa
Find Deal
Tue, 23 Sep - Fri, 26 Sep
 Logo
5:55 a.m. - 3:06 p.m.YOW-IAD
9h 11m1 stop
 Logo
11:35 a.m. - 6:09 p.m.IAD-YOW
6h 34m1 stop
C$ 479
Find Deal
Sun, 14 Sep - Fri, 19 Sep
 Logo
10:25 a.m. - 12:08 p.m.YOW-DCA
1h 43mdirect
 Logo
6:00 a.m. - 10:24 a.m.DCA-YOW
4h 24m1 stop
C$ 488
Find Deal
Booking Insights

KAYAK's insights & trends for Ottawa to District of Columbia flights

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

How much is a round-trip flight from Ottawa to District of Columbia?

What is the cheapest Ottawa to District of Columbia flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Ottawa to District of Columbia.

The cheapest ticket to District of Columbia from Ottawa found in the last 72 hours was to Washington, D.C., at C$ 376 round-trip. The most popular route is from Ottawa (YOW) to Washington, D.C. Dulles Intl Airport (IAD), and the cheapest round-trip airline ticket found on this route in the last 72 hours was C$ 423.

Can I save money by flying with a layover from Ottawa to District of Columbia?

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$ 675 on average.

What is the cheapest month to fly from Ottawa to District of Columbia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ottawa to District of Columbia, 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 District of Columbia is March, when tickets cost C$ 404 (return) on average. On the other hand, the most expensive months are October and September, when the average cost of round-trip tickets is C$ 592 and C$ 543 respectively.


Good to know

Low seasonJanuary
Cheapest flightC$ 200
Best time to beat the crowds (12% less expensive on average)
Most popular time to fly and prices are also 6% lower on average.
Flight from Ottawa to Washington Dulles Airport

FAQs - booking District of Columbia flights

  • How does KAYAK find such low prices on flights from Ottawa to District of Columbia?

    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 District of Columbia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ottawa to District of Columbia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ottawa to District of Columbia 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 Ottawa to District of Columbia?

    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 from Ottawa to District of Columbia with an airline and back with another airline.

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

    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 from Ottawa to District of Columbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to District of Columbia?

    The cheapest time of day to fly to District of Columbia is generally in the evening, when round-trip flights cost C$ 318 on average. Morning departures are around 100% more expensive than evening flights, on average. The most expensive time of day to fly to District of Columbia is generally in the afternoon, which is peak travel time and where the average cost of a ticket is C$ 804.

Top tips for finding cheap flights to District of Columbia

  • Looking for a cheap flight? 25% of our users found tickets from Ottawa to the following destinations at these prices or less: Washington, D.C. C$ 377 one-way - C$ 685 round-trip

Reviews of the top 3 airlines flying from Ottawa to District of Columbia

 
See real verified KAYAK customer reviews for airlines flying from Ottawa to District of Columbia. 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 District of Columbia? 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 318 reviews
8.0Comfort
8.2Boarding
8.7Crew
7.0Entertainment
7.6Food
Airline reviews

All good the seats a little tight and no I pad screen

10.0 ExcellentAnonymous, Jul 2025YYZ - RSW
Read more Porter Airlines reviews

All good the seats a little tight and no I pad screen

Everything was good except the fact you charge more for a carry on bag vs a check in bag and to top it off in US$ that was not impressive

Our flight was cancelled at the last minute for maintenance reasons and we were rebooked on a late flight when we purposefully booked our flight to be home early due to work.

Seemed like an old plane. Very noisy. The seat cushions were so old that the metal bracing of the seats were poking through. There was plenty of leg room though.

Flight was delayed over 2 hours, then landed at a different airport!

The whole experience from check in to deboarding was fantastic.

Just an evening before they canceled my ticket and offered me ticket costing 3 x times more than. I will not fall prey to these scams,Will never book through kayak now. Such a bad experience.

was okay except.. 1)the porter check in webpage doesn't let you print your boarding pass from home 2)that there was a 90 min cut off for checking in on the kiosk in general, and to print a boarding pass, even tho i checked in online already....

Great! Personable crew. I love that they pour complimentary beer and wine.

I love the 2 seats per row. More room. The crew were excellent.

Had one staff that was not pleasant. Seems they are stressed with too many people to care for.

I would have liked an opportunity to move to a different seat ( even would have checked in my hand luggage)as I had health issues where I didn't have to clamber over the passenger next to me to for toilet use/ movement [ She was a highly unpleasant neighbor to sit next to]. In addition, I found that my European phone plan had run out of data and so I was not receiving emails from yourselves on airport wifi to be able to check in online and verifications difficult as did not accept the ticket number I had. I asked for an extra blanket but was told there was none. Then I saw other passengers receiving them. I couldn't eat the food and asked for snacks : Stewardess said " on the way" but they did not bring. The best bit was the check in process in Lisbon. Very efficient. However, I did not understand why we had to collect our bags at Washington then go through customs again. It was not explained. I also with my leg and health issue had approximately mile walk to the gate ( which then changed) . There appeared to be no moving walkways or help provided.

The attendant were friendly. I suggest you have a medical attendant on board every flight so that in case someone is sick , he/she will help them.

It was all good flight was on time, service was good I enjoyed a few movies and everything was smooth

We had a very long diversion and our food voucher didn’t work because the restaurants were closed

United airlines, mediocre at best. No issues , nothing great . Worked for me

Turbulent taking off & landing to Dulles from Raleigh. Flight from Dulles to Tokyo very good!!

Very nice and clean plane. Transit time between flights was tight though

We tried to upgrade to economy premium but were told this was not possible as we had booked through United Airlines (and Air Canada was operating the flight). This seemed silly given there was ample space in economy premium. Additionally, we had to wait almost 1.5 hours upon arrival to taxi to the gate. Otherwise, the crew were very pleasant and passengers were friendly.

Mostly the experience was good except for the flight changes made by UA which meant longer layover in DC

Flight got canceled last minute and rescheduled 3 days later, as if we do not have jobs and children to return to. 5+ hours on hold with customer support with no answer. We booked a different airline and spent 3x as much to escape Montreal bc of Air Canada. Still haven’t heard from them. Boooo

Pros: The airplane was new and had in-flight entertainment (tablet behind seats) with new movies instead of watching on personal devices. Cons: the flight time was changed without informing us. When I booked the flight, the time was 13:30pm (also in the email confirmation). However, when I reached the airport, the time was conveniently changed to 14:55pm. When I asked at the counter, they said the flight always took off at this time. The booking was made by Air Canada, but the flight was operated by United.

Staff was very courteous and kept things organized. We will definitely use Air Canada for further travel

Great flights. 90 minute departure delay for maintenance issues, not a great start but, afer that very good. Didn't pay extra for seats and lucked into a window and an aisle seat. Price was excellent at the super low economy level.

Just a little improvement on food but everything is excellent

My flight got delayed 5 times and then got cancelled eventually, I had to get a hotel and uber and pay for food for an extra night without any plans. It was a horrible experience, instead of Air Canada, I was flying with United .

They lost my checked in luggage, why do I pay for my cargo not arriving at the same destination as me?

Poor planning meant the plane was delayed an hour, then a thunder storm started and the ground staff couldn't work. Eventual arrival in Santiago was 3 hours late resulting in missed connections and the need to buy new tickets.

The take off was delayed as we were told that the baggages had to be rearranged to balance the weight. I only took a carry-on and a personal item, but the overhead bin was extremely small, even a normal size carryon can’t fit it, so they had to check it in for free. The seat was really tight and no entertainment at all.

The pork noodles were disgusting. The tuna sandwich had hardly any tuna and the bread was stale. A salad would have been better. An apple or a muffin.

Everything you need to know for your flight from Ottawa to District of Columbia

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