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Washington, D.C.

$49+ 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
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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The best prices from Ottawa to Washington, D.C. are usually found in January or November, booked 58 days in advance, depart on a Saturday or Thursday and return on a Thursday

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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$250
(Air Canada)

One-way from

$49
(123 Milhas)

Popular in

June

Cheapest in

January

Average price

$343

Good round-trip deal

$178 or less

Good one-way deal

$146 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. 4% potential increase in price ($15 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 February 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 February 20, 2025.

This Air Canada deal was found by Cheapflights users on 2/19. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/262:05 pmYOW - IAD
Nonstop1h 53mAir Canada
Wed 3/2610:15 pmIAD - YOW
Nonstop1h 39mAir Canada
Deal found 2/19$250
This Air Canada deal was found by Cheapflights users on 2/19. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/266:20 amYOW - DCA
1 stop4h 09mAir Canada
Wed 3/2612:55 pmDCA - YOW
Nonstop1h 40mAir Canada
Deal found 2/19$250
This FlightHub deal was found by Cheapflights users on 2/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/197:00 amYOW - IAD
1 stop5h 59mPorter Airlines
Wed 3/261:45 pmIAD - YOW
1 stop3h 24mPorter Airlines
Deal found 2/18$261
This United Airlines deal was found by Cheapflights users on 2/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/263:11 pmYOW - IAD
1 stop5h 01mUnited Airlines
Wed 3/2610:15 pmIAD - YOW
Nonstop1h 39mUnited Airlines
Deal found 2/19$277
This United Airlines deal was found by Cheapflights users on 2/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/266:00 amYOW - DCA
1 stop4h 31mUnited Airlines
Wed 3/2612:55 pmDCA - YOW
Nonstop1h 40mUnited Airlines
Deal found 2/19$277
This Kiwi.com deal was found by Cheapflights users on 2/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/29:25 amYOW - BWI
1 stop11h 00mMultiple Airlines
Tue 4/2211:25 amBWI - YOW
1 stop8h 47mMultiple Airlines
Deal found 2/19$278
This Kiwi.com deal was found by Cheapflights users on 2/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/119:25 amYOW - IAD
1 stop7h 29mMultiple Airlines
Wed 3/197:00 amIAD - YOW
1 stop7h 04mMultiple Airlines
Deal found 2/19$315
This United deal was found by Cheapflights users on 2/19. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/810:30 amYOW - DCA
Nonstop1h 50mMultiple Airlines
Sat 3/2212:55 pmDCA - YOW
Nonstop1h 40mMultiple Airlines
Deal found 2/19$427
This FlightHub deal was found by Cheapflights users on 2/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/219:35 pmYOW - BWI
2 stops26h 24mWestJet
Thu 4/246:00 amBWI - YOW
2 stops18h 09mWestJet
Deal found 2/20$571
This Delta deal was found by Cheapflights users on 2/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/134:20 pmYOW - DCA
2 stops19h 14mDelta
Mon 3/179:05 pmDCA - YOW
2 stops27h 04mDelta
Deal found 2/19$614
This Trip.com deal was found by Cheapflights users on 2/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/85:55 amYOW - DCA
2 stops10h 29mWestJet
Mon 5/122:00 pmDCA - YOW
2 stops10h 22mWestJet
Deal found 2/20$644
This Delta deal was found by Cheapflights users on 2/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/145:55 amYOW - BWI
2 stops11h 00mDelta
Sun 3/3012:28 pmBWI - YOW
2 stops11h 41mDelta
Deal found 2/19$701

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 February 20, 2025.

Fly from

Ottawa

Fly to

Washington, D.C.

Route

Depart

Return

Price

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Wed 3/26

2:05 pm-3:58 pm

Nonstop1h 53m

Washington, D.C. Dulles Intl

Wed 3/26

10:15 pm-11:54 pm

Nonstop1h 39m

$250

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Wed 3/26

6:20 am-10:29 am

1 stop4h 09m

Washington, D.C. Reagan-National

Wed 3/26

12:55 pm-2:35 pm

Nonstop1h 40m

$250

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Wed 3/19

7:00 am-12:59 pm

1 stop5h 59m

Washington, D.C. Dulles Intl

Wed 3/26

1:45 pm-5:09 pm

1 stop3h 24m

$261

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Wed 3/26

3:11 pm-8:12 pm

1 stop5h 01m

Washington, D.C. Dulles Intl

Wed 3/26

10:15 pm-11:54 pm

Nonstop1h 39m

$277

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Wed 3/26

6:00 am-10:31 am

1 stop4h 31m

Washington, D.C. Reagan-National

Wed 3/26

12:55 pm-2:35 pm

Nonstop1h 40m

$277

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Wed 4/2

9:25 am-8:25 pm

1 stop11h 00m

Baltimore/Washington

Tue 4/22

11:25 am-8:12 pm

1 stop8h 47m

$278

OttawaWashington, D.C.

YOW - IAD

YOWIAD

Ottawa

Tue 3/11

9:25 am-4:54 pm

1 stop7h 29m

Washington, D.C. Dulles Intl

Wed 3/19

7:00 am-2:04 pm

1 stop7h 04m

$315

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Sat 3/8

10:30 am-12:20 pm

Nonstop1h 50m

Washington, D.C. Reagan-National

Sat 3/22

12:55 pm-2:35 pm

Nonstop1h 40m

$427

OttawaBaltimore

YOW - BWI

YOWBWI

Ottawa

Mon 4/21

9:35 pm-11:59 pm

2 stops26h 24m

Baltimore/Washington

Thu 4/24

6:00 am-12:09 am

2 stops18h 09m

$571

OttawaWashington, D.C.

YOW - DCA

YOWDCA

Ottawa

Thu 3/13

4:20 pm-11:34 am

2 stops19h 14m

Washington, D.C. Reagan-National

Mon 3/17

9:05 pm-12:09 am

2 stops27h 04m

$614

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 26 results
1
2
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  • 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 February 14, 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 $309). Flying from Ottawa to Washington, D.C. in June is currently the most expensive (average of $389). 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 February 20, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 56% 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 February 20, 2025.

The most flights from YOW to WAS are scheduled on a Monday (7 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 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 February 20, 2025.
Get a feel of what it's like to fly with Delta, Porter Airlines 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
8,219 reviews

Food

7.3

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

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

Delta
8.0
Very good
8,219 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

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

Porter Airlines
7.9
Good
276 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

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

United Airlines
7.4
Good
8,765 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

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

WestJet
7.2
Good
2,801 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

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

Air Canada
7.0
Good
8,748 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

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 $250, 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 30% 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 ($49), Porter Airlines ($146), and WestJet ($247).

  • 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%), GoJet (63%) or Air Canada (63%) 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 $516, our data shows the cheapest flight currently is $138. When looking at the most popular route, (Ottawa - Washington, D.C. Dulles Intl), you can expect to pay $260 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, August is the cheapest month in which you can book a flight from Ottawa to Washington, D.C. (average of $309). Flying from Ottawa to Washington, D.C. in June is currently the most expensive (average of $389). 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
Arlington
Alexandria
Fairfax
Springfield
Rockville
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Gaithersburg
Silver Spring
Fredericksburg
Linthicum Heights
Laurel
Falls Church
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Bowie
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National Harbor
Oxon Hill
Gettysburg

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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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$240Average$467FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$247Average$407FlexibilityNo cancel feeOn-time67%
Porter AirlinesCheapest$273Average$379FlexibilityNo cancel feeOn-time52%
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