$170 Find Cheap Flights from Ottawa to District of Columbia - Compare and Save

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 8/29. 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.
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1 adult, Economy, 0 bags

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Book Cheap Ottawa to District of Columbia Plane Tickets

 
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

Wed, Jul 29 - Wed, Aug 5
Air Canada Logo
10:25 am - 12:00 pm
YOW
-
DCA
1h 35mnonstop
Air Canada Logo
12:40 pm - 2:11 pm
DCA
-
YOW
1h 31mnonstop
$339Air Canada
Wed, Jul 22 - Tue, Jul 28
Air Canada Logo
9:05 am - 3:38 pm
YOW
-
DCA
6h 33m
1 stop
Air Canada Logo
8:40 pm - 12:45 am
DCA
-
YOW
4h 05m
1 stop
$341Air Canada
Wed, Jul 29 - Wed, Aug 5
Air Canada Logo
10:25 am - 12:00 pm
YOW
-
DCA
1h 35mnonstop
Air Canada Logo
6:00 am - 10:35 am
DCA
-
YOW
4h 35m
1 stop
$343Air Canada
Thu, Aug 13 - Mon, Aug 31
Air Canada Logo
10:25 am - 12:00 pm
YOW
-
DCA
1h 35mnonstop
Air Canada Logo
12:40 pm - 2:11 pm
DCA
-
YOW
1h 31mnonstop
$344Air Canada
Wed, Jul 29 - Wed, Aug 5
Air Canada Logo
11:15 am - 3:38 pm
YOW
-
DCA
4h 23m
1 stop
Air Canada Logo
6:00 am - 9:39 am
DCA
-
YOW
3h 39m
1 stop
$346Air Canada
Thu, Aug 13 - Sun, Aug 16
Air Canada Logo
5:45 pm - 9:48 pm
YOW
-
DCA
4h 03m
1 stop
Air Canada Logo
6:00 am - 9:39 am
DCA
-
YOW
3h 39m
1 stop
$347Air Canada
Thu, Sep 10 - Sun, Sep 13
Porter Airlines Logo
10:40 am - 3:10 pm
YOW
-
IAD
4h 30m
1 stop
Porter Airlines Logo
3:50 pm - 8:04 pm
IAD
-
YOW
4h 14m
1 stop
$351Porter Airlines
Fri, Jul 24 - Tue, Jul 28
Porter Airlines Logo
10:40 am - 3:11 pm
YOW
-
IAD
4h 31m
1 stop
Porter Airlines Logo
3:55 pm - 8:04 pm
IAD
-
YOW
4h 09m
1 stop
$356Porter Airlines
Fri, Jul 24 - Tue, Jul 28
Porter Airlines Logo
10:40 am - 3:11 pm
YOW
-
IAD
4h 31m
1 stop
Porter Airlines Logo
3:55 pm - 8:04 pm
IAD
-
YOW
4h 09m
1 stop
$357Porter Airlines
Sat, Sep 5 - Mon, Sep 7
United Airlines Logo
7:30 pm - 9:14 pm
YOW
-
IAD
1h 44mnonstop
United Airlines Logo
8:15 am - 9:56 am
IAD
-
YOW
1h 41mnonstop
$378United Airlines
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?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Ottawa to District of Columbia departing in September.

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

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

The cheapest ticket to District of Columbia from Ottawa found in the last 5 days was to Washington, D.C., at $312 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 5 days was $418.

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

The average price for all round-trip flights from Ottawa to District of Columbia depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to District of Columbia is generally in the morning, when round-trip flights cost $488 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 $737.

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.

No, with an average price for the route of $387, prices are generally cheapest when you fly direct.

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 August, when tickets cost $114 (return) on average. On the other hand, the most expensive months are October and July, when the average cost of round-trip tickets is $276 and $268 respectively.

What’s the cheapest day of the week to fly from Ottawa to District of Columbia?

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

When flying from Ottawa to District of Columbia, you should consider leaving on a Friday and avoid Sundays if you are looking for the best rates. For your return to Ottawa, you’ll find the best rates on Tuesdays and the most expensive ones on Saturdays.

Good to know

Low seasonFebruary
Cheapest flight$170
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly and prices are also 25% 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 travelers 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.

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. $391 one-way - $377 round-trip; Washington, D.C. $280 one-way - $477 round-trip

Reviews of the top 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.
7.4
United AirlinesOverall score based on 9940 reviews
7.1Entertainment
6.6Food
8.1Crew
7.3Comfort
7.7Boarding
Airline reviews

Crew were welcoming, accommodating and they worked hard to find places for all carry on.

10.0 ExcellentPatricia, Jun 2026
YOW - EWR
Read more United Airlines reviews

Crew were welcoming, accommodating and they worked hard to find places for all carry on.

very average service no complimentary alcoholics drinks unlike other airlines such as Porter airlines No decent seats available during check-in time the day before

It was great. There were some issues prior to takeoff. The weather was poor so we had to go through deicing, and we were delayed a bit by the pilots' concern about one of the engines, but that's aviation. The pilots handled everything with aplomb, and kept us apprised

I dread trans-Pacific flights. They are very long. This was my first time on Universal, and it was my best crossing ever. The staff were professional, the hospitality was great, and the food was delicious. The entertainment system filled the long flight hours. I will seek out Universal flights from now onwards. 🙂

My flight was delayed about 1 1/2 hours in Chicago, but other then that it was a good flight.

The flight was delayed, it took longer than anticipated because of weather, and they broke my luggage.

lots of delays the crew were unclear about where to pick up my carry-on, which they took from me to check in on the plane.

My connecting gate in .Chicago was across the aisle from my arriving gate. Otherwise I would not have made my connection. So that was very fortunate.

My flight was delayed by a whole day, so I lost a day of my vacation.

How would you rate my experience when I was stuck in YOW without being offered a cup of water by the airline?

The flight was good. My luggage didn’t land with me when I arrived in Columbus. So grateful I was able to get my luggage back within the 2 hours😍👍.

It was out first time flying Air Canada and it was ok, comfort-wise. I hope airlines are able to get a quiet room installed for young children flying. Screaming and crying the whole time in business class is quite unfortunate. That was the only thing that really messed up the experience.

Staff were very friendly. Plane left on time and arrived on time.

The Flight Attendant was particularly helpful to my wife, who was having a bad day.

It is air Canada so leaving 20 minutes late is very acceptable

One United employee a little impatient, also on flight WiFi was out for some time. I was happy to receive a complimentary alcoholic beverage for volunteering to check my carry on bag.

Everything was great, staff, planes, at the gate. All around everything was a pleasure flying .

I COULD NOT GET ON THE FLIGHT BECAUSE THE AIR CANADA CHECK-IN STAFF COULD NOT CHECK ME IN NEITHER COULD THEY DIRECT ME TO THE ALTERNATIVE CHECK-IN AIRLINE I DIDN'T FLY AND HAD TO REBOOK ANOTHER AIRLINE, PORTER FOR THE FOLLOWING DAY. I NEED MY REFUND FOR THE RETURN LEG

When a person pays 500 $ for one way ticket that person should have better seat not the seat before the bathrooms.🤔🤨

Seating is very tight. We were delayed 90 minutes to board, because the flight crew were late

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

Information on your arrival and departure airports