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$105+ Cheap flights from Washington, D.C. (WAS) to Ottawa (YOW)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — YOW
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. to Ottawa are usually found in January or April, booked 57 days in advance, depart on a Monday or Saturday and return on a Friday

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

Cheapest flights from Washington, D.C. to Ottawa
Explore the most affordable flight options available from Washington, D.C. to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/242:35 pmIAD - YOW
2 stops26h 50mMultiple Airlines
Wed 1/217:00 amYOW - IAD
1 stop3h 19mMultiple Airlines
Deal found 12/17$403
This American Airlines deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3010:10 amDCA - YOW
1 stop6h 41mAmerican Airlines
Mon 1/56:45 amYOW - DCA
1 stop5h 52mAmerican Airlines
Deal found 12/15$480
This Kiwi.com deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/242:35 pmIAD - YOW
2 stops26h 50mMultiple Airlines
Sun 1/188:55 pmYOW - IAD
1 stop13h 24mMultiple Airlines
Deal found 12/15$488
This Kiwi.com deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/241:44 pmBWI - YOW
1 stop27h 26mMultiple Airlines
Wed 1/217:00 amYOW - BWI
1 stop12h 03mMultiple Airlines
Deal found 12/17$512
This Kiwi.com deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/299:58 pmIAD - YOW
1 stop19h 15mMultiple Airlines
Fri 1/212:10 pmYOW - IAD
1 stop5h 04mMultiple Airlines
Deal found 12/17$578
This Kiwi.com deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2310:10 amIAD - YOW
2 stops14h 15mMultiple Airlines
Wed 12/316:50 amYOW - IAD
1 stop3h 34mMultiple Airlines
Deal found 12/17$585
This Kiwi.com deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2310:10 amIAD - YOW
2 stops14h 15mMultiple Airlines
Fri 1/212:10 pmYOW - IAD
1 stop5h 04mMultiple Airlines
Deal found 12/17$592
This Kiwi.com deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/289:58 pmIAD - YOW
1 stop26h 00mMultiple Airlines
Wed 12/316:50 amYOW - IAD
1 stop3h 34mMultiple Airlines
Deal found 12/17$598
This Kiwi.com deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/289:58 pmIAD - YOW
1 stop26h 00mMultiple Airlines
Fri 1/212:10 pmYOW - IAD
1 stop5h 04mMultiple Airlines
Deal found 12/17$606
This Kiwi.com deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/299:58 pmIAD - YOW
1 stop19h 15mMultiple Airlines
Thu 1/18:55 pmYOW - IAD
1 stop13h 24mMultiple Airlines
Deal found 12/17$615
This American Airlines deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:10 amDCA - YOW
1 stop6h 41mAmerican Airlines
Fri 1/26:45 amYOW - DCA
1 stop5h 52mAmerican Airlines
Deal found 12/15$619
This Kiwi.com deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2310:10 amIAD - YOW
2 stops14h 15mMultiple Airlines
Thu 1/18:55 pmYOW - IAD
1 stop13h 24mMultiple Airlines
Deal found 12/17$629

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

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Ottawa (YOW). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$247
(Mytrip)

One-way from

$105
(Kiwi.com)

Popular in

March

Cheapest in

January

Average price

$424

Good round-trip deal

$406 or less

Good one-way deal

$154 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. 0% potential increase in price ($2 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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

 
Customize your flight search to find flights from Washington, D.C. to Ottawa that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Ottawa that are best for you.

Fly from

Washington, D.C.

Fly to

Ottawa

Route

Depart

Return

Price

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Sun 1/18

6:20 am-5:25 pm

1 stop11h 05m

Ottawa

Sun 1/25

4:20 pm-11:36 pm

3 stops31h 16m

$247

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Mon 1/19

11:35 am-5:29 pm

1 stop5h 54m

Ottawa

Wed 1/21

7:00 am-10:19 am

1 stop3h 19m

$281

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Tue 1/13

1:00 pm-5:25 pm

1 stop28h 25m

Ottawa

Tue 1/20

7:00 am-10:27 am

2 stops27h 27m

$282

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Mon 1/26

12:40 pm-2:58 pm

2 stops26h 18m

Ottawa

Wed 1/28

9:30 am-5:10 pm

1 stop7h 40m

$297

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Fri 1/16

10:08 pm-5:15 pm

2 stops19h 07m

Ottawa

Mon 1/19

7:00 am-10:19 am

1 stop3h 19m

$314

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Fri 2/13

6:30 pm-10:29 pm

1 stop3h 59m

Ottawa

Mon 2/16

12:10 pm-5:14 pm

1 stop5h 04m

$317

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Sat 1/31

8:20 am-5:12 pm

1 stop8h 52m

Ottawa

Sat 1/31

7:27 pm-9:25 pm

Nonstop1h 58m

$319

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Fri 1/30

5:33 pm-12:25 am

2 stops30h 52m

Ottawa

Fri 2/6

7:00 am-10:22 am

1 stop3h 22m

$328

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Wed 1/14

1:00 pm-12:42 am

2 stops11h 42m

Ottawa

Wed 1/21

7:00 am-11:47 pm

2 stops16h 47m

$328

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Fri 1/9

11:16 am-11:58 pm

1 stop12h 42m

Ottawa

Sat 1/10

9:30 am-10:59 pm

1 stop13h 29m

$331

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 51 results
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Compare providers for flights from Washington, D.C. to Ottawa

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C.-Ottawa flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Ottawa. Price data was last updated on December 12, 2025.

The best time to book flights from Washington, D.C. to Ottawa is 57 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 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 $112). Flying from Washington, D.C. to Ottawa in June is currently the most expensive (average of $215). 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?

Find hourly flight availability from Washington, D.C. to Ottawa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

It’s optimal to fly from Washington, D.C. to Ottawa at noon. By choosing this option you can save up to 41% on the cost of your flight, compared to a flight in the evening.

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

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Ottawa. Price data was last updated on December 16, 2024.

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

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

Explore weekly flight availability from Washington, D.C. to Ottawa. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 18, 2025.

The most flights from WAS to YOW are scheduled on a Monday (9 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (7 on average).

Reviews of airlines servicing Ottawa

Get insights into the airlines that provide service to Ottawa. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ottawa. Reviews last updated December 18, 2025.
Peruse reviews from past customers who have flown with Porter Airlines, United Airlines, and Air 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
399 reviews

Entertainment

7.0

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.6

Food

7.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Porter Airlines
8.0
Very good
399 reviews
Porter Airlines
8.0
Very good
399 reviews

Entertainment

7.0

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.6

Food

7.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
United Airlines
7.4
Good
9,093 reviews
Porter Airlines
8.0
Very good
399 reviews

Entertainment

7.0

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.6

Food

7.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Air Canada
7.1
Good
10,534 reviews
Porter Airlines
8.0
Very good
399 reviews

Entertainment

7.0

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.6

Food

7.6

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Ottawa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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 8 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 $338, Porter Airlines can have you in Ottawa from Washington, D.C. in 1h 35m. Airlines will cover a distance of 452 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $164. Additional round-trip tickets that might be worth considering are offered by Porter Airlines and United Airlines, with the lowest prices starting at $169 and $189, respectively. You may be able to fly from Washington, D.C. to Ottawa for 58% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Washington, D.C. to Ottawa one-way?

    $106 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on Porter Airlines and United Airlines, with prices starting from $118 and $180, respectively.

  • 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 (85%), United Airlines (74%) or Air Canada (72%) 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 $724, our data shows the cheapest flight currently is $155. When looking at the most popular route, (Washington, D.C. Dulles Intl - Ottawa), you can expect to pay $274 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 $112). Flying from Washington, D.C. to Ottawa in June is currently the most expensive (average of $215). 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
Petawawa

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Alternative routes for Washington, D.C. to Ottawa

See prices for flight routes from nearby airports that may be better suited for you.
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Reagan-National to Kingston flights

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

Discover the top 3 airlines that operate flights from Washington, D.C. to Ottawa. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$206Average$472FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$218Average$497FlexibilityNo cancel feeOn-time69%
Porter AirlinesCheapest$265Average$335FlexibilityNo cancel feeOn-time52%

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