$182 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 9/10. 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, Jul 1 - Sat, Jul 4
Air Canada Logo
12:15 pm - 4:12 pm
YOW
-
IAD
3h 57m
1 stop
Air Canada Logo
5:15 pm - 9:52 pm
IAD
-
YOW
4h 37m
1 stop
$316Air Canada
Wed, Nov 4 - Mon, Nov 9
Air Canada Logo
10:30 am - 12:19 pm
YOW
-
DCA
1h 49mnonstop
Air Canada Logo
12:55 pm - 2:30 pm
DCA
-
YOW
1h 35mnonstop
$316Air Canada
Wed, Jul 1 - Sat, Jul 4
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
$320Air Canada
Tue, Jun 23 - Sun, Jul 26
Air Canada Logo
12:15 pm - 4:12 pm
YOW
-
IAD
3h 57m
1 stop
Air Canada Logo
5:15 pm - 9:52 pm
IAD
-
YOW
4h 37m
1 stop
$322Air Canada
Wed, Jul 1 - Sat, Jul 4
Air Canada Logo
6:00 am - 10:18 am
YOW
-
DCA
4h 18m
1 stop
Air Canada Logo
6:00 am - 10:35 am
DCA
-
YOW
4h 35m
1 stop
$323Air Canada
Thu, Sep 17 - Sun, Sep 20
Porter Airlines Logo
10:40 am - 3:10 pm
YOW
-
IAD
4h 30m
1 stop
Porter Airlines Logo
11:25 am - 5:54 pm
IAD
-
YOW
6h 29m
1 stop
$324Porter Airlines
Tue, Jun 23 - Sun, Jul 26
Air Canada Logo
6:00 am - 10:18 am
YOW
-
DCA
4h 18m
1 stop
Air Canada Logo
12:40 pm - 2:11 pm
DCA
-
YOW
1h 31mnonstop
$325Air Canada
Fri, Jun 12 - Sun, Jun 14
Air Canada Logo
12:15 pm - 4:12 pm
YOW
-
IAD
3h 57m
1 stop
Air Canada Logo
5:15 pm - 9:51 pm
IAD
-
YOW
4h 36m
1 stop
$327Air Canada
Wed, Jun 17 - Wed, Jun 24
Air Canada Logo
10:25 am - 12:01 pm
YOW
-
DCA
1h 36mnonstop
Air Canada Logo
12:40 pm - 2:11 pm
DCA
-
YOW
1h 31mnonstop
$327Air Canada
Sat, Jun 27 - Sun, Jul 12
Porter Airlines Logo
11:00 am - 3:16 pm
YOW
-
IAD
4h 16m
1 stop
Porter Airlines Logo
3:50 pm - 8:04 pm
IAD
-
YOW
4h 14m
1 stop
$328Porter 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 July.

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 $240 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 $240.

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 $698.

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 $390, 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 April, when the average cost of round-trip tickets is $276 and $260 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 Saturdays and the most expensive ones on Thursdays.

Good to know

Low seasonFebruary
Cheapest flight$182
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly and prices are also 2% 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. $307 one-way - $395 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 9748 reviews
6.6Food
7.3Comfort
8.1Crew
7.7Boarding
7.1Entertainment
Airline reviews

There were no facilities in the middle of the aircraft and premium economy was not allowed to use the business class facilities, and had to share the only two toilets at the back with economy. The upgrade to Premium was definitely not worth it

4.0 OkayLinda, May 2026
BCN - IAD
Read more United Airlines reviews

There were no facilities in the middle of the aircraft and premium economy was not allowed to use the business class facilities, and had to share the only two toilets at the back with economy. The upgrade to Premium was definitely not worth it

Our flight to Rome, Italy was cancelled the day of and we were never informed. We only found out because I was trying to get into my husbands account and called to get his account number. Had to pay more for worse seating on another airline.

The economy seat was much less comfortable for an international flight in terms of recline and moving space when food tray is expanded. Per entertainment, it would be amazing if I could connect my Bluetooth headset or ear phones to the entertainment screen. Or provide in-flight wifi to connect directly from my own device.

We were a little disappointed to not be able to complete check in online without uploading pics of passports. Also we have KTN's and they weren't on our boarding passes when we got to security. Had to trek back to counter to have them fix.

Excellent service in Polaris class IAD to ZRH. Arrived rested and well fed after the overnight flight.

It's a short hop. My carryon was checked at the gate, I didn't have to drag it all over the airport. Excellent wheelchair assist.

Seats very comfortable; service efficient and pleasant; flight was on-time; boarding organized.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Starlink is great Crew was polite Business class didn’t get a welcome drink just water and snacks were ok

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

The crew was amazing! I was a bit surprised and disappointed that there was not wifi available for personal use. The only thing I would change would be the seat cushions. They are not comfortable at all for long flights.

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 .

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

Information on your arrival and departure airports