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$138+ 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 6/17. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — YOW
May 5 — May 121
Mon 5/5
Mon 5/12
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. to Ottawa are usually found in January or November, booked 57 days in advance, depart on a Thursday or Monday and return on a Thursday

Cheap 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 April 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$338
(Trip.com)

One-way from

$138
(Kiwi.com)

Popular in

March

Cheapest in

January

Average price

$333

Good round-trip deal

$300 or less

Good one-way deal

$156 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-Ottawa flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Ottawa flights.
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From Washington, D.C. (WAS) to Ottawa
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One-way flight from Washington, D.C. (WAS) to Ottawa
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Highest demand for flights based on searches. 2% potential increase in price ($9 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 April 2025
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Price to beat on a round-trip flight from Washington, D.C. (WAS) to Ottawa.
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Price to beat on a one-way flight from Washington, D.C. (WAS) to Ottawa.
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Find 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 April 30, 2025.

This Trip.com deal was found by Cheapflights users on 4/27. 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 5/234:20 pmIAD - YOW
1 stop4h 43mPorter Airlines
Sat 6/149:35 amYOW - IAD
1 stop5h 31mPorter Airlines
Deal found 4/27$318
This Mytrip deal was found by Cheapflights users on 4/29. 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.
Tue 5/274:20 pmIAD - YOW
1 stop8h 02mMultiple Airlines
Tue 6/35:55 amYOW - IAD
1 stop9h 11mMultiple Airlines
Deal found 4/29$341
This Booking.com deal was found by Cheapflights users on 4/27. 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.
Mon 5/261:00 pmIAD - YOW
Nonstop1h 42mAir Canada
Mon 6/27:29 pmYOW - IAD
Nonstop1h 35mAir Canada
Deal found 4/27$380
This Gotogate deal was found by Cheapflights users on 4/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/512:55 pmDCA - YOW
Nonstop1h 32mAir Canada
Sun 6/810:25 amYOW - DCA
Nonstop1h 36mAir Canada
Deal found 4/29$399
This Mytrip deal was found by Cheapflights users on 4/29. 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.
Thu 6/56:59 amDCA - YOW
1 stop17h 23mMultiple Airlines
Mon 6/95:55 amYOW - DCA
2 stops28h 24mMultiple Airlines
Deal found 4/29$406
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 5/265:35 amBWI - YOW
1 stop4h 38mMultiple Airlines
Wed 5/284:40 pmYOW - BWI
1 stop14h 51mMultiple Airlines
Deal found 4/29$408
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Fri 6/1312:55 pmDCA - YOW
Nonstop1h 32mUnited Airlines
Mon 6/1610:25 amYOW - DCA
Nonstop1h 36mUnited Airlines
Deal found 4/29$413
This United Airlines deal was found by Cheapflights users on 4/29. 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 6/118:18 amIAD - YOW
Nonstop1h 40mUnited Airlines
Mon 6/162:40 pmYOW - IAD
Nonstop1h 35mUnited Airlines
Deal found 4/29$413
This flugladen.de deal was found by Cheapflights users on 4/29. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/55:07 pmIAD - YOW
Nonstop1h 45mBrussels Airlines
Mon 6/99:50 amYOW - IAD
Nonstop1h 39mBrussels Airlines
Deal found 4/29$525
This Mytrip deal was found by Cheapflights users on 4/29. 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 6/206:00 amDCA - YOW
3 stops29h 31mWestJet
Sun 6/225:55 amYOW - DCA
2 stops17h 04mWestJet
Deal found 4/29$603
This Kissandfly.com deal was found by Cheapflights users on 4/29. 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.
Fri 5/236:00 amDCA - YOW
2 stops13h 38mPorter Airlines
Fri 5/306:12 amYOW - DCA
1 stop4h 15mPorter Airlines
Deal found 4/29$625
This WestJet deal was found by Cheapflights users on 4/29. 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.
Sun 6/155:40 amBWI - YOW
2 stops23h 45mWestJet
Tue 6/177:15 pmYOW - BWI
2 stops25h 28mWestJet
Deal found 4/29$813

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 April 30, 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

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Fri 5/23

4:20 pm-9:03 pm

1 stop4h 43m

Ottawa

Sat 6/14

9:35 am-3:06 pm

1 stop5h 31m

$318

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Tue 5/27

4:20 pm-12:22 am

1 stop8h 02m

Ottawa

Tue 6/3

5:55 am-3:06 pm

1 stop9h 11m

$341

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Mon 5/26

1:00 pm-2:42 pm

Nonstop1h 42m

Ottawa

Mon 6/2

7:29 pm-9:04 pm

Nonstop1h 35m

$380

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 6/5

12:55 pm-2:27 pm

Nonstop1h 32m

Ottawa

Sun 6/8

10:25 am-12:01 pm

Nonstop1h 36m

$399

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 6/5

6:59 am-12:22 am

1 stop17h 23m

Ottawa

Mon 6/9

5:55 am-10:19 am

2 stops28h 24m

$406

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Mon 5/26

5:35 am-10:13 am

1 stop4h 38m

Ottawa

Wed 5/28

4:40 pm-7:31 am

1 stop14h 51m

$408

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Fri 6/13

12:55 pm-2:27 pm

Nonstop1h 32m

Ottawa

Mon 6/16

10:25 am-12:01 pm

Nonstop1h 36m

$413

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Wed 6/11

8:18 am-9:58 am

Nonstop1h 40m

Ottawa

Wed 6/18

7:29 pm-9:04 pm

Nonstop1h 35m

$413

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Thu 6/5

5:07 pm-6:52 pm

Nonstop1h 45m

Ottawa

Mon 6/9

9:50 am-11:29 am

Nonstop1h 39m

$525

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Fri 6/20

6:00 am-11:31 am

3 stops29h 31m

Ottawa

Sun 6/22

5:55 am-10:59 pm

2 stops17h 04m

$603

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 29 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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 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 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 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 April 25, 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, January is the cheapest month in which you can book a flight from Washington, D.C. to Ottawa (average of $294). Flying from Washington, D.C. to Ottawa in June is currently the most expensive (average of $460). 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 April 30, 2025.

It’s optimal to fly from Washington, D.C. to Ottawa at noon. By choosing this option you can save up to 47% on the cost of your flight, compared to a flight in the afternoon.

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 November 18, 2024.

Travelers seeking maximum savings on their Washington, D.C. to Ottawa flight should consider departing on Wednesday 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.

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 April 30, 2025.

The most flights from WAS to YOW are scheduled on a Monday (9 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (8 on average).

Rainfall in Ottawa by month

Plan your trip to Ottawa by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ottawa ranges from 2.0 - 3.7 inches per month. June is typically the wettest month, when rainfall can reach 3.7 in. February is typically the driest time to visit Ottawa when rainfall is around 2.0 in.

Temperature in Ottawa by month

Plan your trip to Ottawa by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ottawa, 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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 F).

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 April 30, 2025.
Read through reviews of airlines operating flights from Washington, D.C. to Ottawa, such as Porter Airlines, Delta and United Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
285 reviews

Entertainment

7.0

Boarding

8.2

Food

7.6

Crew

8.8

Overall

8.0

Comfort

8.1

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
Porter Airlines
8.0
Very good
285 reviews
Porter Airlines
8.0
Very good
285 reviews

Entertainment

7.0

Boarding

8.2

Food

7.6

Crew

8.8

Overall

8.0

Comfort

8.1

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
Delta
8.0
Very good
7,936 reviews
Porter Airlines
8.0
Very good
285 reviews

Entertainment

7.0

Boarding

8.2

Food

7.6

Crew

8.8

Overall

8.0

Comfort

8.1

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
United Airlines
7.4
Good
8,696 reviews
Porter Airlines
8.0
Very good
285 reviews

Entertainment

7.0

Boarding

8.2

Food

7.6

Crew

8.8

Overall

8.0

Comfort

8.1

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
WestJet
7.2
Good
2,826 reviews
Porter Airlines
8.0
Very good
285 reviews

Entertainment

7.0

Boarding

8.2

Food

7.6

Crew

8.8

Overall

8.0

Comfort

8.1

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you
Air Canada
7.0
Good
9,242 reviews
Porter Airlines
8.0
Very good
285 reviews

Entertainment

7.0

Boarding

8.2

Food

7.6

Crew

8.8

Overall

8.0

Comfort

8.1

Reviews

1 / 18
10.0
Excellent

Anonymous,Apr 2025

MCO - YHZ

A good flight and the crew was very nice. Thank you

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 4 different airlines.

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

    Flying on Porter Airlines is currently your cheapest option to Ottawa, with prices starting at $338. Additional round-trip tickets that might be worth considering are offered by Air Canada and United Airlines, with the lowest prices starting at $399 and $413, respectively. You may be able to fly from Washington, D.C. to Ottawa for 12% 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?

    $154 is the cheapest one-way deal found within the past few days, from Porter Airlines. You may also be able to find cheap deals on United Airlines and Air Canada, with prices starting from $182 and $198, 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 Air Canada (75%), GoJet (74%) or United Airlines (74%) 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 $385, our data shows the cheapest flight currently is $198. When looking at the most popular route, (Washington, D.C. Dulles Intl - Ottawa), you can expect to pay $317 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, January is the cheapest month in which you can book a flight from Washington, D.C. to Ottawa (average of $294). Flying from Washington, D.C. to Ottawa in June is currently the most expensive (average of $460). 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
Gatineau
Brockville
Pembroke
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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Top 4 airlines flying from Washington, D.C. to Ottawa

Discover the top 4 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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$155Average$400FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$176Average$514FlexibilityNo cancel feeOn-time69%
Porter AirlinesCheapest$201Average$373FlexibilityNo cancel feeOn-time52%
Air TransatCheapest$347Average$348FlexibilityNo cancel feeOn-time50%

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