Cheap Flights From Macdonald-Cartier Intl. (YOW) To Washington Dulles Intl. (IAD)

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

The cheapest flights to Washington Dulles Intl. found within the past 7 days were CA $494 round trip and CA $281 one way. Prices and availability subject to change. Additional terms may apply.

Thu, Oct 2 - Mon, Oct 6
YOW
Ottawa
IAD
Washington
CA $494 Roundtrip, found 6 days ago
CA $494
Roundtrip
found 6 days ago
Select Porter Airlines flight, departing Thu, Oct 2 from Ottawa to Washington, returning Mon, Oct 6, priced at CA $494 found 6 days ago
Thu, Oct 23 - Sun, Oct 26
YOW
Ottawa
IAD
Washington
CA $495 Roundtrip, found 10 hours ago
CA $495
Roundtrip
found 10 hours ago
Select United flight, departing Thu, Oct 23 from Ottawa to Washington, returning Sun, Oct 26, priced at CA $495 found 10 hours ago
Fri, Nov 14 - Fri, Nov 21
YOW
Ottawa
IAD
Washington
CA $498 Roundtrip, found 5 days ago
CA $498
Roundtrip
found 5 days ago
Select Porter Airlines flight, departing Fri, Nov 14 from Ottawa to Washington, returning Fri, Nov 21, priced at CA $498 found 5 days ago
Fri, Dec 5 - Tue, Dec 9
YOW
Ottawa
IAD
Washington
CA $498 Roundtrip, found 1 day ago
CA $498
Roundtrip
found 1 day ago
Select Porter Airlines flight, departing Fri, Dec 5 from Ottawa to Washington, returning Tue, Dec 9, priced at CA $498 found 1 day ago
Thu, Oct 23 - Sun, Oct 26
YOW
Ottawa
IAD
Washington
CA $503 Roundtrip, found 10 hours ago
CA $503
Roundtrip
found 10 hours ago
Select United flight, departing Thu, Oct 23 from Ottawa to Washington, returning Sun, Oct 26, priced at CA $503 found 10 hours ago
Sat, Oct 11 - Sun, Oct 12
YOW
Ottawa
IAD
Washington
CA $506 Roundtrip, just found
CA $506
Roundtrip
just found
Select Porter Airlines flight, departing Sat, Oct 11 from Ottawa to Washington, returning Sun, Oct 12, priced at CA $506 just found
Thu, Oct 23 - Sun, Oct 26
YOW
Ottawa
IAD
Washington
CA $515 Roundtrip, found 10 hours ago
CA $515
Roundtrip
found 10 hours ago
Select Air Canada flight, departing Thu, Oct 23 from Ottawa to Washington, returning Sun, Oct 26, priced at CA $515 found 10 hours ago
Tue, Oct 28 - Fri, Oct 31
YOW
Ottawa
IAD
Washington
CA $527 Roundtrip, found 4 days ago
CA $527
Roundtrip
found 4 days ago
Select Porter Airlines flight, departing Tue, Oct 28 from Ottawa to Washington, returning Fri, Oct 31, priced at CA $527 found 4 days ago
Fri, Dec 12 - Sat, Dec 13
YOW
Ottawa
IAD
Washington
CA $535 Roundtrip, found 5 days ago
CA $535
Roundtrip
found 5 days ago
Select United flight, departing Fri, Dec 12 from Ottawa to Washington, returning Sat, Dec 13, priced at CA $535 found 5 days ago
Thu, Oct 23 - Sun, Oct 26
YOW
Ottawa
IAD
Washington
CA $537 Roundtrip, found 10 hours ago
CA $537
Roundtrip
found 10 hours ago
Select Porter Airlines flight, departing Thu, Oct 23 from Ottawa to Washington, returning Sun, Oct 26, priced at CA $537 found 10 hours ago

Frequently asked questions

Are there direct flights from Ottawa International Airport to Washington Dulles Intl. Airport (IAD)?
You can't get a flight direct from Macdonald-Cartier Intl. Airport (YOW) to Dulles Intl. Airport, but there's no need to panic. Air Canada, Porter Airlines and United Airlines have flights with only one stopover.
What airlines fly from Ottawa International Airport to Dulles Intl. Airport?
As there are no direct flights offered between Macdonald-Cartier Intl. Airport (YOW) and Dulles Intl. Airport, you'll have at least one stopover. Best to plan ahead if you want to find the most efficient route and save yourself some time.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.

Popular Flight Routes from Ottawa (YOW)

Travelers at YOW love to visit these top cities. Roam to the top destinations from Ottawa (YOW) today with the cheap prices from Travelocity!

Popular Flight Routes from Washington (IAD)

Travelers at IAD love to visit these top cities. Roam to the top destinations from Washington(IAD) today with the cheap prices from Travelocity!

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.