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Washington, D.C.

$101+ Cheap flights from Ottawa (YOW) to Washington, D.C. (WAS)

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 12/17. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — WAS
Dec 25 — Jan 11
Thu 12/25
Thu 1/1
1 adult, Economy
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Cheapflights Tip: The best prices from Ottawa to Washington, D.C. are usually found in March or April, booked 51 days in advance, depart on a Monday or Saturday and return on a Monday

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

Discover tips and strategies to find the most affordable flight options for your journey from Ottawa (YOW) to Washington, D.C. (WAS). 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 November 25, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$241
(Mytrip)

One-way from

$101
(Mytrip)

Popular in

November

Cheapest in

March

Average price

$448

Good round-trip deal

$352 or less

Good one-way deal

$203 or less
Provider with most accurate pricing for Ottawa-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for Ottawa-Washington, D.C. (WAS) flights.
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From Ottawa to Washington, D.C. (WAS)
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One-way flight from Ottawa to Washington, D.C. (WAS)
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Highest demand for flights based on searches. 7% potential increase in price ($29 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Ottawa to Washington, D.C. (WAS).
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Price to beat on a one-way flight from Ottawa to Washington, D.C. (WAS).
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Find flight deals from Ottawa to Washington, D.C.

Cheapest flights from Ottawa to Washington, D.C.
Explore the most affordable flight options available from Ottawa to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 25, 2025.

This Mytrip deal was found by Cheapflights users on 11/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/77:00 amYOW - BWI
3 stops26h 22mMultiple Airlines
Wed 12/106:30 amBWI - YOW
1 stop10h 55mMultiple Airlines
Deal found 11/25$241
This Kiwi.com deal was found by Cheapflights users on 11/24. 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.
Thu 12/49:30 amYOW - BWI
1 stop22h 12mMultiple Airlines
Thu 12/114:38 pmBWI - YOW
2 stops32h 04mMultiple Airlines
Deal found 11/24$280
This Kiwi.com deal was found by Cheapflights users on 11/25. 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.
Thu 12/119:30 amYOW - BWI
1 stop14h 53mMultiple Airlines
Sun 12/148:13 amBWI - YOW
1 stop9h 00mMultiple Airlines
Deal found 11/25$284
This Trip.com deal was found by Cheapflights users on 11/25. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/196:50 amYOW - IAD
1 stop3h 34mPorter Airlines
Sun 12/2111:40 amIAD - YOW
1 stop5h 49mPorter Airlines
Deal found 11/25$285
This Porter Airlines deal was found by Cheapflights users on 11/24. 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 Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2612:10 pmYOW - IAD
1 stop5h 04mPorter Airlines
Tue 12/306:30 pmIAD - YOW
1 stop3h 59mPorter Airlines
Deal found 11/24$290
This Porter Airlines deal was found by Cheapflights users on 11/24. 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 Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/226:50 amYOW - IAD
1 stop3h 34mPorter Airlines
Mon 12/296:30 pmIAD - YOW
1 stop3h 59mPorter Airlines
Deal found 11/24$297
This Mytrip deal was found by Cheapflights users on 11/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/267:27 pmYOW - IAD
Nonstop1h 58mMultiple Airlines
Tue 12/306:30 pmIAD - YOW
1 stop3h 59mMultiple Airlines
Deal found 11/25$299
This Mytrip deal was found by Cheapflights users on 11/24. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/138:40 amYOW - IAD
1 stop3h 49mPorter Airlines
Sun 12/146:30 pmIAD - YOW
1 stop3h 59mPorter Airlines
Deal found 11/24$300
This Air Canada deal was found by Cheapflights users on 11/24. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/132:05 pmYOW - DCA
1 stop5h 40mAir Canada
Sun 12/146:00 amDCA - YOW
1 stop3h 40mAir Canada
Deal found 11/24$303
This United Airlines deal was found by Cheapflights users on 11/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/227:27 pmYOW - IAD
Nonstop1h 58mUnited Airlines
Mon 12/2910:08 pmIAD - YOW
Nonstop1h 46mUnited Airlines
Deal found 11/23$308
This Air Canada deal was found by Cheapflights users on 11/23. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1510:50 amYOW - DCA
1 stop4h 41mAir Canada
Tue 12/1612:55 pmDCA - YOW
Nonstop1h 35mAir Canada
Deal found 11/23$308
This oojo deal was found by Cheapflights users on 11/24. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/201:20 pmYOW - IAD
1 stop3h 54mPorter Airlines
Sat 1/311:35 amIAD - YOW
1 stop6h 04mPorter Airlines
Deal found 11/24$311

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ottawa to Washington, D.C. 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 November 25, 2025.
Use the filters below to find and compare flights from Ottawa to Washington, D.C. that are best for you.

Fly from

Ottawa

Fly to

Washington, D.C.

Route

Depart

Return

Price

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Sun 12/7

7:00 am-9:22 am

3 stops26h 22m

Baltimore/Washington

Wed 12/10

6:30 am-5:25 pm

1 stop10h 55m

$241

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Thu 1/8

7:00 am-11:44 pm

1 stop16h 44m

Baltimore/Washington

Thu 1/15

8:08 am-5:15 pm

1 stop9h 07m

$282

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Wed 1/7

4:15 pm-9:16 am

1 stop17h 01m

Baltimore/Washington

Wed 1/14

11:30 am-5:13 pm

1 stop29h 43m

$283

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Thu 12/11

9:30 am-12:23 am

1 stop14h 53m

Baltimore/Washington

Sun 12/14

8:13 am-5:13 pm

1 stop9h 00m

$284

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Sat 1/10

4:20 pm-7:40 am

1 stop15h 20m

Washington, D.C. Dulles Intl

Sat 1/17

9:33 am-11:58 pm

1 stop14h 25m

$286

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Sat 1/17

2:05 pm-7:45 pm

1 stop5h 40m

Washington, D.C. Reagan-National

Sun 1/18

11:05 am-4:23 pm

1 stop5h 18m

$287

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Mon 1/26

10:30 am-12:19 pm

Nonstop1h 49m

Washington, D.C. Reagan-National

Thu 2/5

11:05 am-4:23 pm

1 stop5h 18m

$289

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Fri 12/26

1:20 pm-5:14 pm

1 stop3h 54m

Washington, D.C. Dulles Intl

Tue 12/30

6:30 pm-10:29 pm

1 stop3h 59m

$290

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Thu 1/22

7:00 am-10:19 am

1 stop3h 19m

Washington, D.C. Dulles Intl

Mon 1/26

11:35 am-5:29 pm

1 stop5h 54m

$293

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Mon 1/26

7:00 am-10:19 am

1 stop3h 19m

Washington, D.C. Dulles Intl

Thu 2/5

11:40 am-5:29 pm

1 stop5h 49m

$293

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/25

Showing 1-10 of 50 results
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Compare providers for flights from Ottawa to Washington, D.C.

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 Ottawa to Washington, D.C. in November.
ProviderPrice AccuracyTrust Score*
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 Ottawa-Washington, D.C. flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ottawa-Washington, D.C. flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Ottawa-Washington, D.C. flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ottawa-Washington, D.C. 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 Ottawa-Washington, D.C. 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 Ottawa to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Ottawa 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 Ottawa to Washington, D.C.

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

Use this chart to determine the optimal time to book a round-trip flight from Ottawa to Washington, D.C.. Price data was last updated on November 21, 2025.

The price you pay for your flight from Ottawa to Washington, D.C. may vary depending on when you book. For the best chance of a lower fare, look to book 51 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, April is the cheapest month in which you can book a flight from Ottawa to Washington, D.C. (average of $71). Flying from Ottawa to Washington, D.C. in January is currently the most expensive (average of $242). 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 YOW to WAS?

Find hourly flight availability from Ottawa to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 25, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 17% on flights from Ottawa to Washington, D.C. by exploring options for tickets in the evening.

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

Explore weekly flight availability from Ottawa to Washington, D.C.. 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 November 25, 2025.

The most flights from YOW to WAS are scheduled on a Monday (8 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (5 on average).

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated November 25, 2025.
See what other customers who have flown with Porter Airlines, United Airlines, and Air Canada from Ottawa to Washington, D.C. have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
394 reviews

Comfort

8.0

Entertainment

7.0

Boarding

8.2

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
394 reviews
Porter Airlines
8.0
Very good
394 reviews

Comfort

8.0

Entertainment

7.0

Boarding

8.2

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
9,043 reviews
Porter Airlines
8.0
Very good
394 reviews

Comfort

8.0

Entertainment

7.0

Boarding

8.2

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
10,471 reviews
Porter Airlines
8.0
Very good
394 reviews

Comfort

8.0

Entertainment

7.0

Boarding

8.2

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 Ottawa to Washington, D.C.. 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 from for flights from Ottawa to Washington, D.C.?

    If you book a flight to Washington, D.C. from Ottawa, you will be flying from Ottawa, which is the city’s only airport. Ottawa (YOW) is located 6.6 mi from the center of Ottawa. There are 7 flights from Ottawa to Washington, D.C. per day from 3 different airlines.

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

    Air Canada and Porter Airlines can get you from Ottawa to Washington, D.C. in just under 3h 54m. Your travel time can differ by up to 1h 46m. There are 449 mi between Ottawa and Washington, D.C.. This flight may include one or multiple stops.

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

    Porter Airlines, at $197, was found to be the cheapest airline from Ottawa to Washington, D.C..Alternate airlines to your destination round-trip include United Airlines and Air Canada. These flights start at 43% lower than the current average price 3 months from now.

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

    While some choose either Ottawa - Washington, D.C. Reagan-National or Ottawa - Baltimore/Washington, Ottawa - Washington, D.C. Dulles Intl is the most popular route from Ottawa to Washington, D.C..

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

    Consider Avianca (82%), Republic Airways (76%) or United Airlines (75%) when booking your flight. These represent the most reliable airlines when flying from Ottawa to Washington, D.C..

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

    While on average a flight from Ottawa to Washington, D.C. is generally $518, our data shows the cheapest flight currently is $176. When looking at the most popular route, (Ottawa - Washington, D.C. Dulles Intl), you can expect to pay $233 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ottawa to Washington, D.C. 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 Ottawa to Washington, D.C.?

    Currently, April is the cheapest month in which you can book a flight from Ottawa to Washington, D.C. (average of $71). Flying from Ottawa to Washington, D.C. in January is currently the most expensive (average of $242). 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 Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Tysons
Woodbridge
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fairfax
Fredericksburg
Falls Church
Linthicum Heights
Manassas
Laurel
Towson
National Harbor
Waldorf
Bowie
Largo
McLean

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

Discover the top 3 airlines that operate flights from Ottawa to Washington, D.C.. 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 November 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$197Average$307FlexibilityNo cancel feeOn-time52%
United AirlinesCheapest$281Average$465FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$296Average$413FlexibilityNo cancel feeOn-time67%

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