$181 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 4/23. 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 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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Flight Deals

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, Apr 8 - Thu, Apr 30
Porter Airlines Logo
6:45 am - 10:54 am
YOW
-
IAD
4h 09m
1 stop
Porter Airlines Logo
11:40 am - 5:04 pm
IAD
-
YOW
5h 24m
1 stop
$285Porter Airlines
Wed, Apr 15 - Wed, Apr 22
Porter Airlines Logo
6:45 am - 10:54 am
YOW
-
IAD
4h 09m
1 stop
Porter Airlines Logo
11:40 am - 5:29 pm
IAD
-
YOW
5h 49m
1 stop
$295Porter Airlines
Wed, Apr 8 - Thu, Apr 30
United Airlines Logo
6:00 am - 7:50 am
YOW
-
IAD
1h 50mnonstop
United Airlines Logo
8:15 am - 10:03 am
IAD
-
YOW
1h 48mnonstop
$306United Airlines
Wed, Apr 8 - Thu, Apr 30
Air Canada Logo
10:25 am - 12:01 pm
YOW
-
DCA
1h 36mnonstop
Air Canada Logo
12:55 pm - 2:27 pm
DCA
-
YOW
1h 32mnonstop
$307Air Canada
Tue, Jul 14 - Tue, Jul 14
United Airlines Logo
6:00 am - 7:44 am
YOW
-
IAD
1h 44mnonstop
United Airlines Logo
5:42 pm - 10:05 pm
IAD
-
YOW
4h 23m
1 stop
$312United Airlines
Wed, Apr 8 - Thu, Apr 30
Air Canada Logo
10:25 am - 12:01 pm
YOW
-
DCA
1h 36mnonstop
Air Canada Logo
6:00 am - 10:11 am
DCA
-
YOW
4h 11m
1 stop
$316Air Canada
Wed, Apr 15 - Wed, Apr 22
United Airlines Logo
7:30 pm - 9:18 pm
YOW
-
IAD
1h 48mnonstop
United Airlines Logo
5:41 pm - 10:05 pm
IAD
-
YOW
4h 24m
1 stop
$316United Airlines
Thu, Apr 23 - Sun, Apr 26
Porter Airlines Logo
6:50 am - 10:54 am
YOW
-
IAD
4h 04m
1 stop
Porter Airlines Logo
6:00 pm - 10:29 pm
IAD
-
YOW
4h 29m
1 stop
$317Porter Airlines
Wed, Apr 8 - Thu, Apr 30
Air Canada Logo
4:00 pm - 9:55 pm
YOW
-
DCA
5h 55m
1 stop
Air Canada Logo
6:00 am - 10:11 am
DCA
-
YOW
4h 11m
1 stop
$325Air Canada
Sun, Apr 26 - Thu, Apr 30
Air Canada Logo
10:25 am - 12:01 pm
YOW
-
DCA
1h 36mnonstop
Air Canada Logo
12:55 pm - 2:27 pm
DCA
-
YOW
1h 32mnonstop
$328Air Canada
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.

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 72 hours was to Washington, D.C., at $274 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 $274.

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 $486 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 $703.

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 $533 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 August, when tickets cost $304 (return) on average. On the other hand, the most expensive months are November and September, when the average cost of round-trip tickets is $439 and $401 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 Wednesday and avoid Sundays if you are looking for the best rates. For your return to Ottawa, you’ll find the best rates on Wednesdays and the most expensive ones on Thursdays.

Good to know

Low seasonFebruary
Cheapest flight$181
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly and prices are also 14% lower on average.
Flight from Ottawa to Reagan Washington National 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. $276 one-way - $420 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 9462 reviews
7.1Entertainment
7.3Comfort
8.1Crew
7.7Boarding
6.6Food
Airline reviews

Offered to check carry on to final destination. This is the most absurd thing in the world. I'm carrying on because I need what is in the carry-on. I'm okay with picking up at next stop but then I will be on much larger plane that can accommodate it. Also, if there is ever a change to your flight. Go to the airport and have the people there fix your ticket. Don't do it over the phone or online with United they screwed us up and ended up with flights for our last leg that took off before our first leg.

8.0 ExcellentMatthew, Mar 2026
CDG - IAD
Read more United Airlines reviews

Offered to check carry on to final destination. This is the most absurd thing in the world. I'm carrying on because I need what is in the carry-on. I'm okay with picking up at next stop but then I will be on much larger plane that can accommodate it. Also, if there is ever a change to your flight. Go to the airport and have the people there fix your ticket. Don't do it over the phone or online with United they screwed us up and ended up with flights for our last leg that took off before our first leg.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

Hopped on time for the flight only to get deplaned and delayed another 2.5 hours.

It was okay, the food was good, but after the landing there was not enough time for luggage and security to catch a connection. It was crowded on board.

When I went to check in at the United counter in Barcelona, Spain I had 2 different menat 2 different times in United uniforms (standing around with a couple other employees) ask me if I was traveling alone. The one man asked me 3 different ways if I was traveling alone. I am, 68 yeaers old and have all my faculties. I thought it was weird and it made me feel very uncomfortable. What difference does it make if I was traveling alone or with someone? What if I was a recent widow? That would have been horrible. They never gave me a reason why they needed to know who I was traveling with. I was hesitant to question them because I needed to be on that flight.

Flight attendants had a little attitude. Food tastes no good.

We were delayed for about an hour from taking off due to traffic control procedures at the destination airport. But once in the air, the flight went well. The crew members were great and provided cabin service despite moderate turbulence during much of the flight.

Crew was great. 2 1/2 hour delay was due to staff needing "rest" was avoidable and self inflicted as United not willing to hire enough crew to keep flight on time.. Ridiculous. The crew and the passengers both suffered due to this.

Fine not above and beyond as I had a connection that was delayed due to maintenance

Bad food, bad service, cold cabin with no additional blankets when asked for (they told me they don’t provide additional blankets). I’m a frequent traveler and this is one of the worst companies I traveled with (by the way I thought that I booked my ticket with Lufthansa but I didn’t see that the flights were handled by United).

It was a very small plane and was ok. No food or entertainment so there should be an option for NA.

We were happy with the service and cost of checking a bag

Flying with Air Canada is still better than the discount airlines like Flair. The seats are more comfortable and the on-board entertainment is better, with each seat having a built in screen and lots of content to watch. Onboard WIFI is also great to have, as well as plugs for charging. I think passengers in general are getting better at not bringing too much luggage onboard, and Air Canada is better at managing this without customers feeling like they are being taken advantage of with extra fees. I have travelled on different airlines and all seem to be loading faster, with fewer people bringing both a carry on and a personal item. Now I just bring one item and it fits under the seat so I don't need to worry about finding a place in the overhead bins. Overall, across the industry, asking customers to pay for carry on baggage is fair because it allows customers to only pay for what they need, and it helps to keep the planes on time. Kudos to Air Canada for its approach - the desired result is achieved without customers feeling that they are being surprised and caught with unexpected extra fees.

Due to the strike by AC flight attendants, my flight was cancelled. Very disappointing! A refund is being processed. This was not a Kayak issue. I will be sure to come back to Kayak in the future.

Biggest problem for me is that I am Star Alliance Gold and they were not able to give me access to to Maple Lounge because of some computer glitch . It was management by information system. She could clearly see my status and still would not give me access because the computer woudl not let her. She should have override that be attentive to a customer and figure rhat out later

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?

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

Information on your arrival and departure airports