HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ottawa

$159+ Cheap flights from Washington, D.C. (WAS) to Ottawa (YOW)

WAS — YOW
Dec 9 — Dec 161
Wed 12/9
Wed 12/16
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Washington, D.C. to Ottawa with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.
Cheapflights Tip: The best prices from Washington, D.C. to Ottawa are usually found in March or August, booked 68 days in advance, depart on a Thursday or Sunday and return on a Tuesday

Cheap flight deals from Washington, D.C. to Ottawa

Cheapest flights from Washington, D.C. to Ottawa

Mon 12/712:55 pm -
Nonstop1h 34m
Mon 12/1410:50 am -
1 stop4h 34m
Deal found 11/9$360
Mon 11/912:55 pm -
Nonstop1h 34m
Wed 11/1110:30 am -
Nonstop1h 49m
Deal found 11/7$367
Mon 12/75:20 pm -
1 stop4h 32m
Mon 12/142:00 pm -
1 stop6h 10m
Deal found 11/9$371
Thu 11/263:58 pm -
1 stop25h 26m
Tue 12/14:40 pm -
2 stops22h 09m
Deal found 11/5$379
Sun 12/611:20 am -
1 stop5h 18m
Wed 12/93:05 pm -
1 stop30h 45m
Deal found 11/8$393
Mon 12/711:20 am -
1 stop5h 18m
Wed 12/93:05 pm -
1 stop30h 45m
Deal found 11/6$397
Sun 12/612:55 pm -
Nonstop1h 34m
Sun 12/135:45 am -
1 stop4h 44m
Deal found 11/8$398
Sun 12/65:20 pm -
1 stop4h 32m
Sun 12/1310:05 am -
1 stop5h 40m
Deal found 11/8$402
Mon 12/145:20 pm -
1 stop4h 32m
Wed 12/162:00 pm -
1 stop6h 10m
Deal found 11/6$403
Fri 11/2711:20 am -
1 stop12h 20m
Tue 12/14:40 pm -
2 stops22h 09m
Deal found 11/5$406
Fri 12/411:20 am -
1 stop5h 18m
Sun 12/612:15 pm -
1 stop5h 30m
Deal found 11/4$410
Fri 12/411:20 am -
1 stop5h 18m
Fri 12/1112:15 pm -
1 stop5h 30m
Deal found 11/6$420

Find flight deals from Washington, D.C. to Ottawa

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$379
(Kiwi.com)

One-way from

$159
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$470

Good round-trip deal

$348 or less

Good one-way deal

$213 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-Ottawa flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Ottawa flights.
Search Deals
From Washington, D.C. (WAS) to Ottawa
Search Deals
One-way flight from Washington, D.C. (WAS) to Ottawa
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($39 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2026
Search Deals
Price to beat on a round-trip flight from Washington, D.C. (WAS) to Ottawa.
Search Deals
Price to beat on a one-way flight from Washington, D.C. (WAS) to Ottawa.
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Washington, D.C. to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Ottawa

IAD Washington, D.C. Dulles Intl - YOW Ottawa

IADYOW

Washington, D.C. Dulles Intl

Tue 12/15

12:06 pm-12:09 am

2 stops12h 03m

Ottawa

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$159
Quickest round-trip

Washington, D.C.Ottawa

DCA Washington, D.C. Reagan-National - YOW Ottawa

DCAYOW

Washington, D.C. Reagan-National

Thu 12/10

12:55 pm-2:29 pm

Nonstop1h 34m

Ottawa

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$187

Washington, D.C.Ottawa

IAD Washington, D.C. Dulles Intl - YOW Ottawa

IADYOW

Washington, D.C. Dulles Intl

Mon 12/14

5:20 pm-9:52 pm

1 stop4h 32m

Ottawa

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$191

Washington, D.C.Ottawa

DCA Washington, D.C. Reagan-National - YOW Ottawa

DCAYOW

Washington, D.C. Reagan-National

Sat 12/12

11:05 am-3:57 pm

1 stop4h 52m

Ottawa

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$193

Washington, D.C.Ottawa

IAD Washington, D.C. Dulles Intl - YOW Ottawa

IADYOW

Washington, D.C. Dulles Intl

Sat 12/12

11:20 am-4:38 pm

1 stop5h 18m

Ottawa

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$194

Washington, D.C.Ottawa

DCA Washington, D.C. Reagan-National - YOW Ottawa

DCAYOW

Washington, D.C. Reagan-National

Sun 12/13

6:00 am-11:37 am

1 stop5h 37m

Ottawa

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$194

Washington, D.C.Ottawa

DCA Washington, D.C. Reagan-National - YOW Ottawa

DCAYOW

Washington, D.C. Reagan-National

Sat 1/2

6:00 am-9:47 am

1 stop3h 47m

Ottawa

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$194

Washington, D.C.Ottawa

DCA Washington, D.C. Reagan-National - YOW Ottawa

DCAYOW

Washington, D.C. Reagan-National

Mon 12/14

6:00 am-11:37 am

1 stop5h 37m

Ottawa

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$194

Washington, D.C.Ottawa

DCA Washington, D.C. Reagan-National - YOW Ottawa

DCAYOW

Washington, D.C. Reagan-National

Mon 12/7

6:00 am-11:37 am

1 stop5h 37m

Ottawa

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$194

Washington, D.C.Ottawa

IAD Washington, D.C. Dulles Intl - YOW Ottawa

IADYOW

Washington, D.C. Dulles Intl

Thu 12/17

11:20 am-4:38 pm

1 stop5h 18m

Ottawa

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$197

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/9

Showing 1-10 of 39 resultsSorted by cheapest first
1
2
3
4

Compare providers for flights from Washington, D.C. to Ottawa

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Washington, D.C. to Ottawa in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C.-Ottawa flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-Ottawa flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Ottawa flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-Ottawa flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C.-Ottawa flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Washington, D.C. to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from Washington, D.C. with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Ottawa

What is the cheapest month to book a flight from Washington, D.C. to Ottawa?

Currently, March is the cheapest month in which you can book a flight from Washington, D.C. to Ottawa (average of $436). Flying from Washington, D.C. to Ottawa in February is currently the most expensive (average of $589). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WAS to YOW?

It’s optimal to fly from Washington, D.C. to Ottawa at noon. By choosing this option you can save up to 58% on the cost of your flight, compared to a flight in the evening.

Weekly flight availability from Washington, D.C. to Ottawa

The most flights from WAS to YOW are scheduled on a Monday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

How much does it cost to fly round-trip from Washington, D.C. to Ottawa?

Airfare is below average for this route at the moment.
Washington, D.C. to Ottawa flights typically cost between $362 and $584 in December.
The cheapest round-trip price found within the last 5 days was $360 on Air Canada (Dec 7-Dec 14).

How far ahead should I book a flight from Washington, D.C. to Ottawa?

The best time to book flights from Washington, D.C. to Ottawa is 73 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest day to fly from Washington, D.C. to Ottawa?

Travelers seeking maximum savings on their Washington, D.C. to Ottawa flight should consider departing on Saturday at noon when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Ottawa

Peruse reviews from past customers who have flown with Porter Airlines,United Airlines, andAir Canada from Washington, D.C. to Ottawa to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
468 reviews

Comfort

8.0

Boarding

8.2

Entertainment

6.9

Food

7.6

Overall

8.0

Crew

8.6

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Porter Airlines
8.0
Very good
468 reviews
Porter Airlines
8.0
Very good
468 reviews

Comfort

8.0

Boarding

8.2

Entertainment

6.9

Food

7.6

Overall

8.0

Crew

8.6

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
United Airlines
7.3
Good
10,476 reviews
Porter Airlines
8.0
Very good
468 reviews

Comfort

8.0

Boarding

8.2

Entertainment

6.9

Food

7.6

Overall

8.0

Crew

8.6

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Air Canada
7.1
Good
11,876 reviews
Porter Airlines
8.0
Very good
468 reviews

Comfort

8.0

Boarding

8.2

Entertainment

6.9

Food

7.6

Overall

8.0

Crew

8.6

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats

Related info for your journey

  • What airport do you fly into for flights to Ottawa from Washington, D.C.?

    Located just 6.6 mi from the city center, Ottawa is the airport most travelers will use when flying to Ottawa from Washington, D.C.. Booking flights from Washington, D.C. to Ottawa (YOW) should be relatively easy as there are 7 daily inbound flights from Washington, D.C. from 3 different airlines.

  • How long is the flight from Washington, D.C. to Ottawa?

    For as low as $482, Air Canada can have you in Ottawa from Washington, D.C. in 1h 34m. Airlines will cover a distance of 452 mi. Generally, flights for this route are nonstop.

  • What are the cheapest airlines flying from Washington, D.C. to Ottawa round-trip?

    Flying on Air Canada is currently your cheapest option to Ottawa, with prices starting at $187. Additional round-trip tickets that might be worth considering are offered by United Airlines and Porter Airlines, with the lowest prices starting at $201 and $206, respectively. You may be able to fly from Washington, D.C. to Ottawa for 61% less than the average price by searching for these airlines.

  • What are the most popular routes from Washington, D.C. to Ottawa?

    When deciding which route to take from Washington, D.C. to Ottawa consider Washington, D.C. Dulles Intl - Ottawa, Washington, D.C. Reagan-National - Ottawa or Baltimore/Washington - Ottawa as they are the most popular.

  • What are the most reliable airlines from Washington, D.C. to Ottawa?

    Consider Republic Airways (96%), United Airlines (89%) or Air Canada (85%) when booking your flight. These represent the most reliable airlines when flying from Washington, D.C. to Ottawa.

  • What are the cheapest flights from Washington, D.C. to Ottawa?

    While on average a flight from Washington, D.C. to Ottawa is generally $435, our data shows the cheapest flight currently is $204. When looking at the most popular route, (Washington, D.C. Dulles Intl - Ottawa), you can expect to pay $393 for that flight.

  • Can I find deals for flights from Washington, D.C. to Ottawa that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Ottawa flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Ottawa?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Ottawa.

  • Can I find deals for business class flights from Washington, D.C. to Ottawa?

    Yes. Cheapflights offers flight deals from Washington, D.C. to Ottawa by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. to Ottawa?

    Currently, March is the cheapest month in which you can book a flight from Washington, D.C. to Ottawa (average of $436). Flying from Washington, D.C. to Ottawa in February is currently the most expensive (average of $589). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Washington, D.C. to Ottawa

AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$187Average$467FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$201Average$514FlexibilityNo cancel feeOn-time69%
Porter AirlinesCheapest$206Average$432FlexibilityNo cancel feeOn-time52%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights