$174 Cheap Flights from Ottawa (YOW) to Washington (DCA)

View $174 flight on Wed, Apr 8, 2026Opens in a new window

Popular airlines from Ottawa International Airport (YOW) to Ronald Reagan Washington National Airport (DCA)

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Cheap Flights from Ottawa to Washington (YOW-DCA)

Prices were available within the past 7 days and start at $174 for one-way flights and $288 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Mon, Mar 30 - Tue, Mar 31
YOW
Ottawa
DCA
Washington
$288 Roundtrip, found 3 days ago
$288
Roundtrip
found 3 days ago
Select Air Canada flight, departing Mon, Mar 30 from Ottawa to Washington, returning Tue, Mar 31, priced at $288 found 3 days ago
Air Canada
Mon, Mar 30 - Sun, Apr 5
YOW
Ottawa
DCA
Washington
$297 Roundtrip, found 3 days ago
$297
Roundtrip
found 3 days ago
Select Air Canada flight, departing Mon, Mar 30 from Ottawa to Washington, returning Sun, Apr 5, priced at $297 found 3 days ago
Air Canada
Tue, Mar 24 - Wed, Apr 1
YOW
Ottawa
DCA
Washington
$301 Roundtrip, found 3 days ago
$301
Roundtrip
found 3 days ago
Select Air Canada flight, departing Tue, Mar 24 from Ottawa to Washington, returning Wed, Apr 1, priced at $301 found 3 days ago
Air Canada
Sun, Mar 29 - Sun, Apr 5
YOW
Ottawa
DCA
Washington
$305 Roundtrip, found 3 days ago
$305
Roundtrip
found 3 days ago
Select Air Canada flight, departing Sun, Mar 29 from Ottawa to Washington, returning Sun, Apr 5, priced at $305 found 3 days ago
Air Canada
Sun, Mar 29 - Wed, Apr 1
YOW
Ottawa
DCA
Washington
$310 Roundtrip, found 3 days ago
$310
Roundtrip
found 3 days ago
Select Air Canada flight, departing Sun, Mar 29 from Ottawa to Washington, returning Wed, Apr 1, priced at $310 found 3 days ago
Air Canada
Fri, Mar 27 - Sun, Mar 29
YOW
Ottawa
DCA
Washington
$315 Roundtrip, found 3 days ago
$315
Roundtrip
found 3 days ago
Select Air Canada flight, departing Fri, Mar 27 from Ottawa to Washington, returning Sun, Mar 29, priced at $315 found 3 days ago
Air Canada
Tue, Apr 14 - Sun, Apr 19
YOW
Ottawa
DCA
Washington
$327 Roundtrip, found 6 days ago
$327
Roundtrip
found 6 days ago
Select Air Canada flight, departing Tue, Apr 14 from Ottawa to Washington, returning Sun, Apr 19, priced at $327 found 6 days ago
United
Thu, May 28 - Sun, May 31
YOW
Ottawa
DCA
Washington
$358 Roundtrip, found 1 day ago
$358
Roundtrip
found 1 day ago
Select United flight, departing Thu, May 28 from Ottawa to Washington, returning Sun, May 31, priced at $358 found 1 day ago
Porter Airlines
Sun, Apr 12 - Sat, Apr 18
YOW
Ottawa
DCA
Washington
$452 Roundtrip, found 3 days ago
$452
Roundtrip
found 3 days ago
Select Porter Airlines flight, departing Sun, Apr 12 from Ottawa to Washington, returning Sat, Apr 18, priced at $452 found 3 days ago
WestJet
Fri, Jun 5 - Mon, Jun 8
YOW
Ottawa
DCA
Washington
$1,045 Roundtrip, found 8 hours ago
$1,045
Roundtrip
found 8 hours ago
Select WestJet flight, departing Fri, Jun 5 from Ottawa to Washington, returning Mon, Jun 8, priced at $1,045 found 8 hours ago

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Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Washington Dulles Intl. IAD. Average driving time to city center is 36 minutes. Flights from $380
IAD
Washington Dulles Intl.
Average driving time to city center36 min
Flights from $380

Find the cheapest month to fly from Ottawa (YOW) to Washington (DCA)

May is typically the cheapest month to fly

From $237 - $651 per traveler.

Frequently asked questions

How much does a flight from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) cost?
You can find cheap one-way flights from $174 and cheap return flights from $288 Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) with Expedia. One-way flights typically cost between $218 and $831, and return flights often range between $362 and $1172. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
January is the cheapest month to fly from Ottawa, ON (YOW) to Washington, DC (DCA), with average return fares around $376. This is about 11% lower than the average price throughout the year, as January often has lower travel demand. Other budget-friendly months to consider are February and May.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
You can fly direct from YOW to DCA on Air Canada, with around 7 flights per week.
What is the cheapest airline that flies from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
Air Canada is one of the cheapest airlines offering nonstop flights from Ottawa, ON (YOW) to Washington, DC (DCA), with round-trip tickets starting from around $284. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
To find a cheap flight from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Washington, DC (DCA-Ronald Reagan Washington National), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
The best airline to fly with from Ottawa, ON (YOW) to Washington, DC (DCA) will differ from traveler to traveler. If you like to fly early, Air Canada offers early morning flights. If price is the most important factor, Air Canada typically offers the lowest fares. Air Canada also offers the most daily flights from YOW to DCA, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
When traveling from Ottawa (YOW) to Washington, DC (DCA), January and February are the best months to fly. You can find return flights for around $376 in January, which is ideal as it's typically less crowded. February also offers good prices, making it a great time to visit the capital without the hustle and bustle of peak season.*Prices based on flights available on Expedia in the last year.
How many flights per day from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
There are approximately 1 nonstop flights per day from Macdonald-Cartier Intl. (YOW) to Ronald Reagan Washington National (DCA). For more options, look at flights that include layovers.
What is the earliest flight from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
The earliest flight from Macdonald-Cartier International Airport (YOW) to Ronald Reagan Washington National Airport (DCA) typically leaves at around 5:00 AM, operated by Air Canada. This seasonal service is available in February, allowing you to start your day early and make the most of your time in Washington, DC. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
How long does it take to fly from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
Direct flights from YOW to DCA usually take about 1 hour 50 minutes, traveling roughly 453 miles. If you opt for a connecting flight, expect to add around 2 hours 40 minutes to your journey. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
Business class seats are offered on the YOW to DCA route with Air Canada.First class cabins are available on:

  • United Airlines
  • Air Canada
  • WestJet

How much is a business class flight from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
A direct, return business class ticket from Ottawa (YOW) to Washington, DC (DCA) typically costs between $798 - $1,218. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) flight with Expedia?
It's easy to earn miles on a Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Washington from Macdonald-Cartier Intl. (YOW)?
When traveling from Macdonald-Cartier Intl. (YOW) to Washington, you can fly into Ronald Reagan Washington National (DCA) and Washington Dulles Intl. (IAD). Some flights may connect through major hubs like Pearson Intl. (YYZ), Billy Bishop Toronto City (YTZ), Liberty Intl. (EWR) before reaching Washington. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) at the last minute?
Typically, booking a last minute flight from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) flight and hotel package?
Securing a Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) Washington Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
If you booked your Ottawa, ON (YOW-Macdonald-Cartier Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Macdonald-Cartier Intl.
Destination airport
Ronald Reagan Washington National
Airlines serving
Air Canada, Porter Airlines, United, WestJet
Roundtrip price
$287
Distance
452 mi
Average flight time
1 hour 49 mins

Book with confidence

Ottawa to Washington Flights

The cheapest times to fly from Ottawa to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Ottawa to Washington are during the month of March. You can find some of the cheapest flights from Ottawa to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Ottawa to Washington

Sunday is one of the best days to book for cheap flights from Ottawa to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Ottawa to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Ottawa to Washington in 2026. You can also book with separate airlines for your outbound and return journeys, from $174 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Ottawa to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Ottawa to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Ottawa to Washington Flights

*Flight schedules are subject to change.

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*Available to One Key members.