HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Washington, D.C.

$143+ 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 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — WAS
Oct 28 — Nov 41
Mon 10/28
Mon 11/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Edit search

YOW - WAS
Oct 28 - Nov 4

Find cheap flights from Ottawa to Washington, D.C. with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

The best prices from Ottawa to Washington, D.C. are usually found in February or January, booked 58 days in advance, depart on a Tuesday or Thursday 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 October 23, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

October

Cheapest in

February

Round-trip from

$246
(Booking.com)

One-way from

$143
(oojo)
Provider with most accurate pricing for Ottawa-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ottawa-Washington, D.C. (WAS) flights.
Search Deals
High demand for flights, 15% potential price rise
Search Deals
Best time to find cheap flights, 13% potential price drop
Search Deals
From Ottawa to Washington, D.C. (WAS)
Search Deals
One-way flight from Ottawa to Washington, D.C. (WAS)
Search Deals

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 October 23, 2024.

This Trip.com deal was found by Cheapflights users on 10/23. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/147:00 amYOW - IAD
1 stop5h 59mPorter Airlines
Mon 11/187:00 amIAD - YOW
1 stop4h 11mPorter Airlines
Deal found 10/23$265
This Air Canada deal was found by Cheapflights users on 10/22. 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.
Tue 11/267:30 pmYOW - IAD
Nonstop1h 50mAir Canada
Sat 11/305:15 pmIAD - YOW
Nonstop1h 39mAir Canada
Deal found 10/22$266
This Air Canada deal was found by Cheapflights users on 10/21. 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.
Tue 11/1210:30 amYOW - DCA
Nonstop1h 50mAir Canada
Wed 11/2712:55 pmDCA - YOW
Nonstop1h 40mAir Canada
Deal found 10/21$266
This United Airlines deal was found by Cheapflights users on 10/23. 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.
Tue 11/267:30 pmYOW - IAD
Nonstop1h 50mUnited Airlines
Wed 12/48:18 amIAD - YOW
1 stop5h 02mUnited Airlines
Deal found 10/23$285
This United deal was found by Cheapflights users on 10/21. 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.
Tue 11/127:30 pmYOW - IAD
Nonstop1h 50mMultiple Airlines
Tue 11/2610:15 pmIAD - YOW
Nonstop1h 39mMultiple Airlines
Deal found 10/21$320
This United deal was found by Cheapflights users on 10/21. 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.
Tue 11/1210:30 amYOW - DCA
Nonstop1h 50mMultiple Airlines
Tue 11/2612:55 pmDCA - YOW
Nonstop1h 40mMultiple Airlines
Deal found 10/21$320
This Kiwi.com deal was found by Cheapflights users on 10/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/124:35 pmYOW - BWI
1 stop4h 35mMultiple Airlines
Wed 11/276:00 amBWI - YOW
1 stop11h 24mMultiple Airlines
Deal found 10/21$334
This United Airlines deal was found by Cheapflights users on 10/22. 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.
Tue 11/1210:30 amYOW - DCA
Nonstop1h 50mUnited Airlines
Fri 11/1512:55 pmDCA - YOW
Nonstop1h 40mUnited Airlines
Deal found 10/22$431
This Justfly.com deal was found by Cheapflights users on 10/23. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/125:55 amYOW - DCA
2 stops10h 35mWestJet
Tue 12/171:59 pmDCA - YOW
2 stops10h 11mWestJet
Deal found 10/23$482
This CheapOair deal was found by Cheapflights users on 10/23. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/125:55 amYOW - BWI
2 stops17h 47mWestJet
Tue 12/176:00 amBWI - YOW
2 stops14h 50mWestJet
Deal found 10/23$532
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Fri 11/226:00 amYOW - BWI
2 stops27h 57mUnited Airlines
Sun 11/246:15 amBWI - YOW
1 stop15h 09mUnited Airlines
Deal found 10/21$817
This Delta deal was found by Cheapflights users on 10/21. 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.
Tue 11/125:55 amYOW - DCA
2 stops12h 37mDelta
Tue 11/2611:00 amDCA - YOW
2 stops13h 10mDelta
Deal found 10/21$879

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 2,464,459 searches. Data last updated October 23, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$246 - $836

Route

Depart

Return

Price

OttawaWashington, D.C. Dulles Intl

YOW - IAD

YOWIAD

Ottawa

Fri 1/17

1 stop5h 49m

Washington, D.C. Dulles Intl

Mon 1/20

1 stop6h 19m

$246

OttawaWashington, D.C. Reagan-National

YOW - DCA

YOWDCA

Ottawa

Fri 1/10

Nonstop1h 50m

Washington, D.C. Reagan-National

Sun 1/12

Nonstop1h 40m

$250

OttawaWashington, D.C. Dulles Intl

YOW - IAD

YOWIAD

Ottawa

Fri 1/17

1 stop4h 13m

Washington, D.C. Dulles Intl

Mon 1/20

Nonstop1h 46m

$255

OttawaWashington, D.C. Dulles Intl

YOW - IAD

YOWIAD

Ottawa

Tue 11/12

Nonstop1h 50m

Washington, D.C. Dulles Intl

Tue 11/26

Nonstop1h 39m

$320

OttawaWashington, D.C. Reagan-National

YOW - DCA

YOWDCA

Ottawa

Tue 11/12

Nonstop1h 50m

Washington, D.C. Reagan-National

Tue 11/26

Nonstop1h 40m

$320

OttawaBaltimore/Washington

YOW - BWI

YOWBWI

Ottawa

Tue 11/12

1 stop4h 35m

Baltimore/Washington

Wed 11/27

1 stop11h 24m

$334

OttawaWashington, D.C. Dulles Intl

YOW - IAD

YOWIAD

Ottawa

Sat 11/9

1 stop4h 58m

Washington, D.C. Dulles Intl

Tue 11/12

Nonstop1h 39m

$419

OttawaWashington, D.C. Reagan-National

YOW - DCA

YOWDCA

Ottawa

Tue 11/12

Nonstop1h 50m

Washington, D.C. Reagan-National

Fri 11/15

Nonstop1h 40m

$431

OttawaWashington, D.C. Reagan-National

YOW - DCA

YOWDCA

Ottawa

Tue 11/19

2 stops16h 57m

Washington, D.C. Reagan-National

Tue 11/26

2 stops15h 40m

$521

OttawaBaltimore/Washington

YOW - BWI

YOWBWI

Ottawa

Wed 11/20

2 stops10h 45m

Baltimore/Washington

Wed 11/27

2 stops18h 10m

$526

OttawaWashington, D.C. Dulles Intl

YOW - IAD

YOWIAD

Ottawa

Mon 12/9

2 stops15h 40m

Washington, D.C. Dulles Intl

Fri 12/13

2 stops18h 10m

$613

OttawaWashington, D.C. Reagan-National

YOW - DCA

YOWDCA

Ottawa

Fri 1/10

2 stops13h 22m

Washington, D.C. Reagan-National

Sun 1/12

2 stops14h 10m

$836

Flights are sorted by cheapest first

Deals found on 10/22

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 October.
ProviderPrice AccuracyTrust Score*Cancellation Policy
FlightHubPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy
eDreamsPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy

*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 October 18, 2024.

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.

Find deals

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 January is currently the most expensive (average of $272). 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 October 23, 2024.

Unlike at noon, when flights are generally more expensive, you can save up to 26% on flights from Ottawa to Washington, D.C. by exploring options for tickets in the morning.

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 October 23, 2024.
Get a feel of what it's like to fly with WestJet, United Airlines and Porter 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
8,885 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 10

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

Delta
8.0
Very good
8,885 reviews
Delta
8.0
Very good
8,885 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 10

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

Porter Airlines
7.8
Good
293 reviews
Delta
8.0
Very good
8,885 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 10

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

United Airlines
7.4
Good
9,283 reviews
Delta
8.0
Very good
8,885 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 10

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

WestJet
7.3
Good
2,807 reviews
Delta
8.0
Very good
8,885 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 10

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

Air Canada
7.0
Good
8,008 reviews
Delta
8.0
Very good
8,885 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 10

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

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 2 different airlines.

  • Can I find flights from Ottawa to Washington, D.C. for under $300 on Cheapflights?

    Yes, there are multiple flights from Ottawa to Washington, D.C. for under $300. The cheapest flight booked recently is on Porter Airlines for just $246, but on average you can expect to pay $452.

  • Are there nonstop flights from Ottawa to Washington, D.C. for under $300 on Cheapflights?

    Cheapflights has at least 6 direct flights from Ottawa to Washington, D.C. under $300. A good price for a nonstop flight from Ottawa to Washington, D.C. is less than $347.

  • Are there last-minute flights available from Ottawa to Washington, D.C. for under $400?

    There are currently 7+ open flights from Ottawa to Washington, D.C. within the next 7 days for less than $400.

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

    Porter Airlines, at $246, was found to be the cheapest airline from Ottawa to Washington, D.C..Alternate airlines to your destination round-trip include Air Canada and United Airlines. These flights start at 32% 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 Porter Airlines ($143), Air Canada ($154), and United Airlines ($218).

  • 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 does YOW to BWI mean?

    Great question - YOW to BWI just means Ottawa Airport to Baltimore/Washington Airport. Now you’ll know what these unique codes when you look for flights! This flight route has multiple associated airports, so we think it might be helpful to learn the name and codes of them as well. They are Washington, D.C. Dulles Intl Airport (IAD), Washington, D.C. Reagan-National Airport (DCA).

  • Can I find deals for flights from Ottawa to Washington, D.C. that include extra baggage allowance?

    The amount of baggage you can bring on your Ottawa to Washington, D.C. flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Ottawa to Washington, D.C. with specific airlines?

    Yes, Cheapflights allows you to browse and filter Ottawa to Washington, D.C. flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • 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.

  • Can I find deals for flights from Ottawa to Washington, D.C. that allow pets onboard?

    Many airlines flying from Ottawa to Washington, D.C. offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Ottawa to Washington, D.C.?

    Yes, you can often find last-minute deals on Ottawa to Washington, D.C. flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Ottawa to Washington, D.C. flight deals updated?

    The Ottawa to Washington, D.C. flight deals you see on this page were last updated on 10/23.

  • 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 January is currently the most expensive (average of $272). 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

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 2 airlines flying from Ottawa to Washington, D.C.

Discover the top 2 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 2,464,459 searches. Data last updated October 23, 2024.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$223Average$335FlexibilityNo cancel feeOn-time52%
Air CanadaCheapest$253Average$381FlexibilityNo cancel feeOn-time67%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines