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IAD - YOW

$145 Find cheap flights from Washington Dulles Airport to Ottawa

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Ottawa departing on 6/14. 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
Thu 6/13
Thu 6/20

Search hundreds of travel sites at once for deals on flights to Ottawa

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Ottawa, 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 Washington, D.C. to Ottawa, as well as popular online travel agencies
In the last 7 days travelers have searched 42,566,405 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

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Filter your dealsChoose cabin class, free Wi-Fi and more.

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Cheap flight deals from Dulles Intl to Ottawa (IAD-YOW)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Ottawa 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
2:50 pm - 7:24 pmIAD-YOW
4h 34m1 stop
11:30 am - 4:02 pmYOW-IAD
4h 32m1 stop
$312Porter Airlines
Find Deal
Sat, Jun 22 - Mon, Jun 24
2:50 pm - 7:24 pmIAD-YOW
4h 34m1 stop
11:30 am - 3:52 pmYOW-IAD
4h 22m1 stop
$315Porter Airlines
Find Deal
Sat, Jun 15 - Tue, Jun 18
10:05 pm - 11:43 pmIAD-YOW
1h 38mnonstop
7:25 pm - 9:00 pmYOW-IAD
1h 35mnonstop
$370United Airlines
Find Deal
Fri, Nov 1 - Mon, Nov 4
10:15 pm - 11:55 pmIAD-YOW
1h 40mnonstop
9:00 pm - 7:48 amYOW-IAD
10h 48m1 stop
$373Air Canada
Find Deal
Mon, Jun 3 - Fri, Jun 7
6:00 am - 10:34 amIAD-YOW
4h 34m1 stop
7:25 pm - 9:00 pmYOW-IAD
1h 35mnonstop
$379United Airlines
Find Deal
Fri, Nov 1 - Mon, Nov 4
10:15 pm - 11:55 pmIAD-YOW
1h 40mnonstop
9:20 am - 3:15 pmYOW-IAD
5h 55m1 stop
Tue, May 28 - Wed, May 29
6:30 am - 11:01 amIAD-YOW
4h 31m1 stop
7:10 am - 11:33 amYOW-IAD
4h 23m1 stop
$391Air Canada
Find Deal
Tue, May 28 - Wed, May 29
5:20 pm - 9:29 pmIAD-YOW
4h 09m1 stop
7:15 pm - 4:02 pmYOW-IAD
20h 47m3 stops
Wed, Jun 5 - Thu, Jun 6
1:08 pm - 6:52 amIAD-YOW
17h 44m2 stops
9:35 pm - 6:15 pmYOW-IAD
20h 40m2 stops
$1,023WestJet
Find Deal
Thu, Jul 4 - Sun, Jul 7
6:00 am - 8:48 pmIAD-YOW
14h 48m2 stops
9:35 pm - 6:19 pmYOW-IAD
20h 44m2 stops
$1,066WestJet
Find Deal
Fri, Jun 14 - Sun, Jun 23

Flights from Dulles Intl to Ottawa - Travel Insights & Trends

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

What’s the cheapest day of the week to fly from Washington Dulles Airport to Ottawa?

The average price of all flights from Washington, D.C. Dulles Intl Airport to Ottawa clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Washington Dulles Airport to Ottawa, look for departures on Thursdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Ottawa, Saturday is the cheapest day to fly and Wednesday is the most expensive.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Ottawa?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Washington, D.C. Dulles Intl Airport to Ottawa, 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 Washington, D.C. Dulles Intl Airport to Ottawa is April, where tickets cost $257 on average. On the other hand, the most expensive months are August and October, where the average cost of tickets is $492 and $484 respectively.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Ottawa?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Washington, D.C. Dulles Intl Airport to Ottawa, 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 Washington, D.C. Dulles Intl Airport to Ottawa, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 63 days before departure.

Which airlines provide the cheapest flights from Washington Dulles Airport to Ottawa?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from Washington Dulles Airport to Ottawa found by KAYAK users in the last 72 hours was for $312 on Porter Airlines, followed by United Airlines ($370). One-way flight deals have also been found from as low as $145 on Porter Airlines and from $161 on Air Canada.

Which airlines fly non-stop between Washington, D.C. Dulles Intl Airport and Ottawa?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Washington, D.C. Dulles Intl Airport to Ottawa.
There is just one airline that flies from Washington, D.C. Dulles Intl Airport to Ottawa direct and that is United Airlines. The best one-way deal found from United Airlines for the route is $217.

How many flights are there between Washington, D.C. Dulles Intl Airport and Ottawa per day?

Each day, there are between 2 and 3 nonstop flights that take off from Washington, D.C. Dulles Intl Airport and land in Ottawa, with an average flight time of 1h 43m. The most common departure time is 5:00 pm and most flights take off in the afternoon. Each week, there are 20 flights. The most frequent day of departure is Friday, when 15% of all weekly flights depart. The fewest flights depart on a Saturday.

Which cabin class options are there for flights between Washington, D.C. Dulles Intl Airport and Ottawa?

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 3 cabin class options for the route. These are 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 Washington Dulles Airport to Ottawa take?

Nonstop flights from Washington Dulles Airport generally make it to Ottawa in 1h 37m. The flying distance between the two cities is 449 miles.

What’s the earliest departure time from Washington Dulles Airport to Ottawa?

Early birds can take the earliest flight from Washington, D.C. Dulles Intl Airport at 12:30 pm and will be landing in Ottawa at 2:12 pm.

What’s the latest departure time from Washington Dulles Airport to Ottawa?

If you prefer to fly at night, the latest flight from Washington, D.C. Dulles Intl Airport to Ottawa jets off at 10:15 pm and lands at 11:55 pm.

Good to know

Low season

January

High season

May

Cheapest flight

$145
Best time to beat the crowds but there is an average 26% increase in price.
Most popular time to fly with an average 30% increase in price.
Flight from Washington Dulles Airport to Ottawa

When to book flights from Dulles Intl to Ottawa

Are your dates flexible? Find out the best times to travel from Dulles Intl to Ottawa 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 Washington Dulles Airport to Ottawa flights

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Ottawa?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Ottawa was $145 for a one-way ticket and $312 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Ottawa?

    A passport is required to fly from Washington Dulles Airport to Ottawa.

  • Which airlines offer Wi-Fi service onboard planes from Washington Dulles Airport to Ottawa?

    Only Air Canada offers inflight Wi-Fi service on the Washington Dulles Airport to Ottawa flight route.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Ottawa?

    The Canadair (Bombardier) Regional Jet CRJ-550 is the aircraft model that flies most regularly on the Washington Dulles Airport to Ottawa flight route.

  • Which airline alliances offer flights from Washington Dulles Airport to Ottawa?

    Star Alliance is the only airline alliance operating flights between Washington Dulles Airport and Ottawa.

  • On which days can I fly direct from Washington Dulles Airport to Ottawa?

    There are nonstop flights from Washington Dulles Airport to Ottawa on a daily basis.

  • Which is the best airline for flights from Washington, D.C. to Ottawa, Porter Airlines or United Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Ottawa are Porter Airlines and United Airlines. With an average price for the route of $375 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 $499 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Ottawa?

    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 Washington Dulles Airport to Ottawa.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Ottawa?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ottawa from Washington Dulles Airport 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 Washington Dulles Airport to Ottawa?

    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 Ottawa with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and YOW can sometimes prove cheaper using this method.

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

    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 Ottawa from Washington Dulles Airport 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 IAD to Ottawa

  • Looking for a cheap flight? 25% of our users found flights on this route for $182 or less one-way and $374 or less round-trip.

Prefer to fly non-stop from Washington Dulles Airport to Ottawa?

Find which airlines fly direct from Dulles Intl to Ottawa, which days they fly and book direct flights.

Nonstop departures

Washington, D.C. Dulles Intl 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 direct flights

Nonstop returns

Ottawa to Washington, D.C. Dulles Intl

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 direct flights
See more direct flights

Top 3 airlines serving from Dulles Intl to Ottawa

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Ottawa. 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 Dulles Intl to Ottawa? 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 416 reviews
7.5Comfort
8.2Crew
7.4Food
7.6Boarding
6.6Entertainment
Airline reviews

Wish we had music during take off and landing like the last flight

10.0 ExcellentAnonymous, Apr 2024EWR - YTZ
Read more about Porter Airlines reviews

Wish we had music during take off and landing like the last flight

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.

Crew is ok. They offered food n drinks. Had difficulty connecting to wifi on board.

Tight transfer in Montreal. (15 min) However, we made it, as did my luggage.

Great. Porter is very efficient, welcoming, and organized. I fly Porter often.

Flight was smooth and comfortable. The crew were exceptional. Amanda, Nichole and Hershel were attentive to our every need. So friendly. My daughter and I were surprised at quality of service. Loved the double row seating. Snacks were delicious. We would definitely fly with Porter again. Flight PD 670 SFO to YYZ Thank you so much for the best flight experience we have had

The E195-E2 is a great aircraft! Leather seats, lots of legroom and SO quiet! The flight crew is terrific!

Check in was slow because of passenger ahead in Reserve line. Seats were somewhat uncomfortable.

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.

Flight delayed 6 hr. Looking for compensation and will claim for it.allow US people to fix to avoid huge delay having a canadian tech to fix it.

We ended up with seats in the very back. So they did not recline. Have no idea why, we reserved and checked in very early. The isles were very narrow and the seats had very little leg room. But they did give us water, and a snack.

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

Food was terrible Not many options Stewards dont care Delay

The ride was good but no food ot entertainment hence, it was just over an hour flight.

they made me check my carryon. There was space in the overhead bins.

The plane was delayed 2 hours. The wifi did not work. The seat in first class was not comfortable because the bottom felt like it lost all of its padding. And I did not like when the flight attendant made me wait at my seat to use the bathroom and didn't tell me why. If there were too many people using the 1st Class bathroom, she should have told me to go in the back, coach bathrooms. I guess I have to feel fortunate that they found 2 local pilots to still fly the plane tonight after the original pilots ended up at an airport 60 miles away due to high winds.

The crew were really great, but the 4 hour delay in small chunks was the worst.

Aircraft has better leg room than any of United's larger planes. We had requested mobility assistance for this and related flights. United's response to all was superb.

Every experience was good except for the lack of comfort in those economy seats. I never had knee pain until that flight. Those seats are uncomfortable.

I bought internet for the flight. Don’t waste your money. I wasn’t able to download a 1 Mb file from Google Docs during a 3-4 hr period. You can only use WhatsApp and email if you are willing to wait.

My second flight ended up being through United and it was fine. Again, just frustrating that it was so late.

First time flying Air Canada and the trip was very pleasant! They did a great job getting us out of Toronto and into Rome (early!) For an international flight it was very enjoyable.

It was awful. For a 37 minute flight time,we had 1:30 hours delay. If someone had a connection flight he or she couldn’t reach for sure. The only positive point was online check in.

You do not have a space for flight cancelled. BUT!!! Air Canada handled it great. Was booked on another airline for the next day. The original flight was booked solid. But he precheck by the maintenance found a mechanical problem and the plane was not safe to fly. It was an inconvenience to have to wait until next day but I would rather arrive safely.

Very good other than we have to wait for one crew and we’re delayed and the pilot and his co- pilot has to make a difference to be right on time arrival. Disappointed about no food service also.

I had written all my complaints on my trip from Grand Junction to Denver so I will repeat it here! I was absolutely appalled that I had to pay for a regular seat that I choose 24 hrs before boarding! Also I checked my large bag which I had to pay for as well, and by the time I boarded all the room in the bins were gone so also had to check that one. I noticed people pulling out oversized suitcases, bigger than the measurements stated for carry on, and also large pack packs stuffed full! So these people were taking up 2 or 3 spaces that the rest of us should have been able to use but couldn’t! NoTV on the flight! Thankfully I had downloaded the United Airlines app and was able to watch movies on my phone. Don’t remember the last time I flew in a plane with no movie screens!

The crew was friendly, the seats are too small. Air travel is barely tolerable anymore.

Food was icecold or frozen including breakfast. Hopeless service. Rude crew.

The flight was very uncomfortable and there was no snacks served for the 13 hours international flight. In addition, the flight was delayed 3 hours

Due to a strike taking place with the airline, it negatively impacted my flight in multiple ways. My flight was delayed over 2 hours and the food served was mediocre at best.

Book cheap flights from Washington, D.C. to Ottawa

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Washington, D.C. to Ottawa found on KAYAK in the last 72 hours.
6/14Fri
1 stopPorter Airlines
4h 09mIAD-YOW
$145
6/14Fri
1 stopPorter Airlines
3h 29mIAD-YOW
$146
6/14Fri
nonstopAir Canada
1h 40mIAD-YOW
$161
6/6Thu
nonstopAir Canada
1h 40mIAD-YOW
$162
5/29Wed
1 stopUnited Airlines
4h 10mIAD-YOW
$170
9/12Thu
3 stops
31h 12mIAD-YOW
$258
5/29Wed
2 stops
11h 02mIAD-YOW
$287
5/26Sun
2 stopsUnited Airlines
19h 11mIAD-YOW
$292
5/20Mon
2 stopsWestJet
25h 53mIAD-YOW
$524
6/10Mon
2 stopsWestJet
19h 43mIAD-YOW
$547

Search by stops

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Last minute flights from Dulles Intl to Ottawa

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 Washington, D.C. to Ottawa that are departing in the next 10 days.
5/19Sun
multi-stopPorter Airlines
3h 24mIAD-YOW
5/20Mon
multi-stopPorter Airlines
4h 27mYOW-IAD
$570
5/15Wed
multi-stopPorter Airlines
4h 09mIAD-YOW
5/17Fri
multi-stopPorter Airlines
4h 27mYOW-IAD
$666
5/19Sun
nonstopAir Canada
1h 42mIAD-YOW
5/20Mon
nonstopAir Canada
1h 43mYOW-IAD
$687
5/19Sun
multi-stopAir Canada
4h 31mIAD-YOW
5/20Mon
nonstopAir Canada
1h 43mYOW-IAD
$698
5/18Sat
multi-stopPorter Airlines
4h 34mIAD-YOW
5/19Sun
multi-stopPorter Airlines
6h 17mYOW-IAD
$706
5/18Sat
nonstopAir Canada
1h 42mIAD-YOW
5/19Sun
nonstopAir Canada
1h 43mYOW-IAD
$778
5/18Sat
nonstopAir Canada
1h 42mIAD-YOW
5/19Sun
multi-stopAir Canada
5h 36mYOW-IAD
$783
5/15Wed
multi-stop
3h 29mIAD-YOW
5/17Fri
multi-stop
23h 55mYOW-IAD
$789
5/19Sun
multi-stopUnited Airlines
6h 40mIAD-YOW
5/20Mon
multi-stopUnited Airlines
13h 32mYOW-IAD
$988
5/18Sat
multi-stopUnited Airlines
13h 09mIAD-YOW
5/19Sun
multi-stopUnited Airlines
5h 23mYOW-IAD
$1,030

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Washington Dulles Airport - Ottawa Flights

Departure:

Washington Dulles Airport (undefined)United States

Destination:

Ottawa (YOW)Canada

Return flight deals:

Ottawa - Washington Dulles Airport

Cabin classes:

$677
$862
$2,091
$176

Browse destinations: