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Washington, D.C.

$122+ 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 3/26. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — WAS
ene. 26 — feb. 21
dom. 1/26
dom. 2/2
1 adult, Economy
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The best prices from Ottawa to Washington, D.C. are usually found in February or April, booked 58 days in advance, depart on a Thursday or Tuesday and return on a Saturday

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 enero 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$265
(Air Canada)

One-way from

$122
(MaxMilhas)

Popular in

June

Cheapest in

February

Average price

$347

Good round-trip deal

$295 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. 3% potential increase in price ($12 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in January 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 enero 21, 2025.

This Booking.com deal was found by Cheapflights users on 1/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 3/77:00 amYOW - IAD
1 stop5h 59mPorter Airlines
dom. 3/92:00 pmIAD - YOW
1 stop4h 34mPorter Airlines
Deal found 1/21$262
This Air Canada deal was found by Cheapflights users on 1/21. 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.
mié. 2/510:30 amYOW - DCA
Nonstop1h 50mAir Canada
dom. 2/1612:55 pmDCA - YOW
Nonstop1h 40mAir Canada
Deal found 1/21$265
This Air Canada deal was found by Cheapflights users on 1/21. 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.
jue. 2/139:45 amYOW - IAD
Nonstop1h 53mAir Canada
dom. 2/1610:20 pmIAD - YOW
1 stop12h 11mAir Canada
Deal found 1/21$267
This United Airlines deal was found by Cheapflights users on 1/21. 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.
lun. 3/310:30 amYOW - DCA
Nonstop1h 50mUnited Airlines
lun. 3/35:00 pmDCA - YOW
1 stop5h 01mUnited Airlines
Deal found 1/21$288
This Mytrip deal was found by Cheapflights users on 1/20. 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.
jue. 2/207:00 amYOW - IAD
1 stop5h 49mMultiple Airlines
dom. 2/2310:15 pmIAD - YOW
Nonstop1h 39mMultiple Airlines
Deal found 1/20$298
This Mytrip deal was found by Cheapflights users on 1/21. 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.
mar. 4/19:25 amYOW - BWI
1 stop15h 07mMultiple Airlines
mar. 4/86:30 amBWI - YOW
1 stop13h 45mMultiple Airlines
Deal found 1/21$302
This United deal was found by Cheapflights users on 1/21. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 2/136:00 amYOW - DCA
1 stop4h 31mMultiple Airlines
dom. 2/166:00 amDCA - YOW
1 stop3h 42mMultiple Airlines
Deal found 1/21$323
This United Airlines deal was found by Cheapflights users on 1/21. 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.
lun. 3/36:00 amYOW - IAD
2 stops10h 25mUnited Airlines
lun. 3/310:15 pmIAD - YOW
Nonstop1h 39mUnited Airlines
Deal found 1/21$346
This Kissandfly.com deal was found by Cheapflights users on 1/21. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 2/139:45 amYOW - IAD
Nonstop1h 53mLufthansa
dom. 2/1612:50 pmIAD - YOW
Nonstop1h 39mLufthansa
Deal found 1/21$415
This Trip.com deal was found by Cheapflights users on 1/19. 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.
jue. 2/65:55 amYOW - DCA
2 stops10h 00mWestJet
mié. 2/1212:55 pmDCA - YOW
2 stops11h 14mWestJet
Deal found 1/19$531
This WestJet deal was found by Cheapflights users on 1/21. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/58:10 pmYOW - BWI
2 stops23h 59mWestJet
jue. 3/136:00 amBWI - YOW
2 stops13h 19mWestJet
Deal found 1/21$588
This Delta deal was found by Cheapflights users on 1/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/15:55 amYOW - BWI
2 stops11h 00mDelta
mar. 4/812:28 pmBWI - YOW
2 stops11h 41mDelta
Deal found 1/21$693

Find flights from Ottawa to Washington, D.C. within your budget

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 enero 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

vie. 3/7

7:00 am-12:59 pm

1 stop5h 59m

Washington, D.C. Dulles Intl

dom. 3/9

2:00 pm-6:34 pm

1 stop4h 34m

$262

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

mié. 2/5

10:30 am-12:20 pm

Nonstop1h 50m

Washington, D.C. Reagan-National

dom. 2/16

12:55 pm-2:35 pm

Nonstop1h 40m

$265

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

jue. 2/13

9:45 am-11:38 am

Nonstop1h 53m

Washington, D.C. Dulles Intl

dom. 2/16

10:20 pm-10:31 am

1 stop12h 11m

$267

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

lun. 3/3

10:30 am-12:20 pm

Nonstop1h 50m

Washington, D.C. Reagan-National

lun. 3/3

5:00 pm-10:01 pm

1 stop5h 01m

$288

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

jue. 2/20

7:00 am-12:49 pm

1 stop5h 49m

Washington, D.C. Dulles Intl

dom. 2/23

10:15 pm-11:54 pm

Nonstop1h 39m

$298

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

mar. 4/1

9:25 am-12:32 am

1 stop15h 07m

Baltimore/Washington

mar. 4/8

6:30 am-8:15 pm

1 stop13h 45m

$302

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

jue. 2/13

6:00 am-10:31 am

1 stop4h 31m

Washington, D.C. Reagan-National

dom. 2/16

6:00 am-9:42 am

1 stop3h 42m

$323

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

lun. 3/3

6:00 am-4:25 pm

2 stops10h 25m

Washington, D.C. Dulles Intl

lun. 3/3

10:15 pm-11:54 pm

Nonstop1h 39m

$346

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

jue. 2/13

9:45 am-11:38 am

Nonstop1h 53m

Washington, D.C. Dulles Intl

dom. 2/16

12:50 pm-2:29 pm

Nonstop1h 39m

$415

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

jue. 2/6

5:55 am-3:55 pm

2 stops10h 00m

Washington, D.C. Reagan-National

mié. 2/12

12:55 pm-12:09 am

2 stops11h 14m

$531

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 27 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 January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ottawa-Washington, D.C. flight deals on Cheapflights vs. FlightHub >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 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 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.

Travel insights for flights from Ottawa to Washington, D.C.

Get recent, data-driven insights about flights from Ottawa to Washington, D.C. including ideal travel times, pricing trends, and more.

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 January 17, 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 58 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, August is the cheapest month in which you can book a flight from Ottawa to Washington, D.C. (average of $241). Flying from Ottawa to Washington, D.C. in March is currently the most expensive (average of $290). 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 enero 21, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 35% on flights from Ottawa to Washington, D.C. by exploring options for tickets in the afternoon.

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 enero 21, 2025.

The most flights from YOW to WAS are scheduled on a Saturday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 enero 21, 2025.
Get a feel of what it's like to fly with Delta, WestJet and United Airlines from Ottawa to Washington, D.C. by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Porter Airlines
7.9
Good
277 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
8,985 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

WestJet
7.2
Good
2,829 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air Canada
7.0
Good
8,635 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 6 flights from Ottawa to Washington, D.C. per day from 3 different airlines.

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

    Air Canada, at $265, was found to be the cheapest airline from Ottawa to Washington, D.C..Alternate airlines to your destination round-trip include Porter Airlines and United Airlines. These flights start at 26% lower than the current average price 3 months from now.

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

    The cheapest airlines for a one-way flight from Ottawa to Washington, D.C. are Air Canada ($122), Porter Airlines ($130), and United Airlines ($211).

  • 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..

  • 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, August is the cheapest month in which you can book a flight from Ottawa to Washington, D.C. (average of $241). Flying from Ottawa to Washington, D.C. in March is currently the most expensive (average of $290). 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
Fairfax
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Alexandria
Springfield
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Gaithersburg
Fredericksburg
Linthicum Heights
Laurel
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Greenbelt
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Herndon
Woodbridge
Bowie
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National Harbor

Browse thousands of different options on Cheapflights for your next trip

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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 enero 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$240Average$459FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$247Average$396FlexibilityNo cancel feeOn-time67%
Porter AirlinesCheapest$262Average$379FlexibilityNo cancel feeOn-time52%
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