฿9,375 Cheap Flights from Ottawa (YOW) to Washington (IAD)

View ฿9,375 flight on Wed, 31 Dec 2025Opens in a new window

Popular airlines from Ottawa International Airport (YOW) to Washington Dulles International Airport (IAD)

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 40% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Ottawa (YOW) to Washington (IAD)

Prices were available within the past 7 days and start at ฿9,375 for one-way flights and ฿16,340 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Porter Airlines
Sat, 27 Dec - Fri, 2 Jan
YOW
Ottawa
IAD
Washington
฿16,340 Return, found 9 hours ago
฿16,340
Return
found 9 hours ago
Select Porter Airlines flight, departing Sat, 27 Dec from Ottawa to Washington, returning Fri, 2 Jan, priced at ฿16,340 found 9 hours ago
Porter Airlines
Sat, 27 Dec - Fri, 2 Jan
YOW
Ottawa
IAD
Washington
฿17,105 Return, found 9 hours ago
฿17,105
Return
found 9 hours ago
Select Porter Airlines flight, departing Sat, 27 Dec from Ottawa to Washington, returning Fri, 2 Jan, priced at ฿17,105 found 9 hours ago
United
Fri, 26 Dec - Fri, 2 Jan
YOW
Ottawa
IAD
Washington
฿17,180 Return, found 9 hours ago
฿17,180
Return
found 9 hours ago
Select United flight, departing Fri, 26 Dec from Ottawa to Washington, returning Fri, 2 Jan, priced at ฿17,180 found 9 hours ago
Porter Airlines
Sat, 27 Dec - Fri, 2 Jan
YOW
Ottawa
IAD
Washington
฿17,190 Return, found 9 hours ago
฿17,190
Return
found 9 hours ago
Select Porter Airlines flight, departing Sat, 27 Dec from Ottawa to Washington, returning Fri, 2 Jan, priced at ฿17,190 found 9 hours ago
United
Sat, 27 Dec - Fri, 2 Jan
YOW
Ottawa
IAD
Washington
฿17,360 Return, found 9 hours ago
฿17,360
Return
found 9 hours ago
Select United flight, departing Sat, 27 Dec from Ottawa to Washington, returning Fri, 2 Jan, priced at ฿17,360 found 9 hours ago
United
Sat, 27 Dec - Fri, 2 Jan
YOW
Ottawa
IAD
Washington
฿17,390 Return, found 9 hours ago
฿17,390
Return
found 9 hours ago
Select United flight, departing Sat, 27 Dec from Ottawa to Washington, returning Fri, 2 Jan, priced at ฿17,390 found 9 hours ago
Porter Airlines
Sat, 27 Dec - Fri, 2 Jan
YOW
Ottawa
IAD
Washington
฿17,870 Return, found 9 hours ago
฿17,870
Return
found 9 hours ago
Select Porter Airlines flight, departing Sat, 27 Dec from Ottawa to Washington, returning Fri, 2 Jan, priced at ฿17,870 found 9 hours ago
United
Fri, 26 Dec - Fri, 2 Jan
YOW
Ottawa
IAD
Washington
฿17,945 Return, found 9 hours ago
฿17,945
Return
found 9 hours ago
Select United flight, departing Fri, 26 Dec from Ottawa to Washington, returning Fri, 2 Jan, priced at ฿17,945 found 9 hours ago
Porter Airlines
Sat, 27 Dec - Fri, 2 Jan
YOW
Ottawa
IAD
Washington
฿17,955 Return, found 9 hours ago
฿17,955
Return
found 9 hours ago
Select Porter Airlines flight, departing Sat, 27 Dec from Ottawa to Washington, returning Fri, 2 Jan, priced at ฿17,955 found 9 hours ago
Air Canada
Fri, 26 Dec - Thu, 1 Jan
YOW
Ottawa
IAD
Washington
฿20,140 Return, found 9 hours ago
฿20,140
Return
found 9 hours ago
Select Air Canada flight, departing Fri, 26 Dec from Ottawa to Washington, returning Thu, 1 Jan, priced at ฿20,140 found 9 hours ago

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

May is typically the cheapest month to fly

From ฿7,037 - ฿16,482 per traveller.
Flight from Ottawa to Washington route information
Origin airport
Macdonald-Cartier Intl.
Destination airport
Washington Dulles Intl.
Return price
฿16,340
Distance
719 km
Average flight time
1 hour 56 mins

Perfect flights from Ottawa to Washington

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Ottawa to Washington. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Macdonald-Cartier Intl. to Washington Dulles Intl. ticket options cater to your travel preferences, with incredible one-way fares from ฿9,375 and roundtrip prices from ฿16,340. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Washington Dulles Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in Washington.

Frequently asked questions

How much is a flight from Macdonald-Cartier Intl. Airport (YOW) to IAD?
If you're travelling between Macdonald-Cartier Intl. Airport (YOW) and Dulles Intl. Airport, round-trip flights start from ฿16,340. This price is based on airfares available within the last 7 days on Expedia for flights departing within the next year, so don't wait around. Book now and save yourself money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Macdonald-Cartier Intl. Airport (YOW) to Washington Dulles Intl. Airport (IAD)?
The majority of flights can be cancelled online, but whether you are charged a fee differs between airlines. If you do need to cancel your trip, follow the instructions in the Customer Service Portal.
How do I find cheap flights from YOW to Washington Dulles Intl. Airport (IAD) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Macdonald-Cartier Intl. Airport (YOW) to IAD flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Macdonald-Cartier Intl. Airport (YOW) to IAD?
A flight distance of just 720 kilometres separates Ottawa and Chantilly. Once you're in the air, you won't have time to do much more than read the magazine in your seat pocket.
Which airlines fly direct from YOW to Washington Dulles Intl. Airport (IAD)?
A popular option with many frequent flyers, United Airlines (UA) offers 30 flights every month from Ottawa Intl. Airport to Washington Dulles Intl. Airport (IAD). Pick the one that suits your travel plans and book your ticket today.
Are Ottawa International Airport to Dulles Intl. Airport flight tickets cheaper when they're purchased at the last minute?
Booking your trip from YOW to Washington Dulles Intl. Airport (IAD) last minute could be your ticket to a fantastic deal. However, it could end up costing a good deal more! If you'd prefer to err on the side of caution, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains up to a year in advance. If your preferred air carrier hasn't released tickets yet, check back frequently as deals are updated on Expedia all the time.

Explore a world of travel with Expedia

Washington Airports

Washington

*Available to Expedia members.