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 $411 round trip and CA $242 one way. Prices and availability subject to change. Additional terms may apply.

Thu, Jan 15 - Sun, Jan 18
YOW
Ottawa
IAD
Washington
CA $411 Roundtrip, found 1 day ago
CA $411
Roundtrip
found 1 day ago
Select Porter Airlines flight, departing Thu, Jan 15 from Ottawa to Washington, returning Sun, Jan 18, priced at CA $411 found 1 day ago
Thu, Feb 12 - Wed, Feb 18
YOW
Ottawa
IAD
Washington
CA $411 Roundtrip, found 2 days ago
CA $411
Roundtrip
found 2 days ago
Select Porter Airlines flight, departing Thu, Feb 12 from Ottawa to Washington, returning Wed, Feb 18, priced at CA $411 found 2 days ago
Fri, Feb 13 - Wed, Feb 18
YOW
Ottawa
IAD
Washington
CA $413 Roundtrip, found 3 days ago
CA $413
Roundtrip
found 3 days ago
Select Porter Airlines flight, departing Fri, Feb 13 from Ottawa to Washington, returning Wed, Feb 18, priced at CA $413 found 3 days ago
Fri, Jan 23 - Sun, Jan 25
YOW
Ottawa
IAD
Washington
CA $421 Roundtrip, found 11 hours ago
CA $421
Roundtrip
found 11 hours ago
Select Porter Airlines flight, departing Fri, Jan 23 from Ottawa to Washington, returning Sun, Jan 25, priced at CA $421 found 11 hours ago
Fri, Feb 20 - Mon, Feb 23
YOW
Ottawa
IAD
Washington
CA $428 Roundtrip, found 6 days ago
CA $428
Roundtrip
found 6 days ago
Select Porter Airlines flight, departing Fri, Feb 20 from Ottawa to Washington, returning Mon, Feb 23, priced at CA $428 found 6 days ago
Mon, Jan 12 - Thu, Jan 15
YOW
Ottawa
IAD
Washington
CA $443 Roundtrip, found 2 days ago
CA $443
Roundtrip
found 2 days ago
Select Porter Airlines flight, departing Mon, Jan 12 from Ottawa to Washington, returning Thu, Jan 15, priced at CA $443 found 2 days ago
Fri, Jan 16 - Sun, Jan 18
YOW
Ottawa
IAD
Washington
CA $443 Roundtrip, found 5 days ago
CA $443
Roundtrip
found 5 days ago
Select Porter Airlines flight, departing Fri, Jan 16 from Ottawa to Washington, returning Sun, Jan 18, priced at CA $443 found 5 days ago
Thu, Jan 8 - Sun, Jan 11
YOW
Ottawa
IAD
Washington
CA $445 Roundtrip, found 5 days ago
CA $445
Roundtrip
found 5 days ago
Select Porter Airlines flight, departing Thu, Jan 8 from Ottawa to Washington, returning Sun, Jan 11, priced at CA $445 found 5 days ago
Fri, Feb 6 - Mon, Mar 9
YOW
Ottawa
IAD
Washington
CA $453 Roundtrip, found 15 hours ago
CA $453
Roundtrip
found 15 hours ago
Select Porter Airlines flight, departing Fri, Feb 6 from Ottawa to Washington, returning Mon, Mar 9, priced at CA $453 found 15 hours ago
Wed, Jan 7 - Sun, Jan 11
YOW
Ottawa
IAD
Washington
CA $453 Roundtrip, found 2 days ago
CA $453
Roundtrip
found 2 days ago
Select Porter Airlines flight, departing Wed, Jan 7 from Ottawa to Washington, returning Sun, Jan 11, priced at CA $453 found 2 days 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.