£145 Cheap Flights from Ottawa (YOW) to Washington (DCA)

View £145 flight on Wed, 29 Apr 2026Opens in a new window

Flight 1

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

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 25% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

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

Prices were available within the past 7 days and start at £145 for one-way flights and £248 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Wed, 29 Apr - Thu, 30 Apr
YOW
Ottawa
DCA
Washington
£248 Return, found 1 day ago
£248
Return
found 1 day ago
Select Air Canada flight, departing Wed, 29 Apr from Ottawa to Washington, returning Thu, 30 Apr, priced at £248 found 1 day ago
Air Canada
Wed, 29 Apr - Sat, 2 May
YOW
Ottawa
DCA
Washington
£267 Return, found 1 day ago
£267
Return
found 1 day ago
Select Air Canada flight, departing Wed, 29 Apr from Ottawa to Washington, returning Sat, 2 May, priced at £267 found 1 day ago
Air Canada
Thu, 30 Apr - Sat, 2 May
YOW
Ottawa
DCA
Washington
£272 Return, found 1 day ago
£272
Return
found 1 day ago
Select Air Canada flight, departing Thu, 30 Apr from Ottawa to Washington, returning Sat, 2 May, priced at £272 found 1 day ago
Air Canada
Fri, 24 Apr - Wed, 29 Apr
YOW
Ottawa
DCA
Washington
£275 Return, found 1 day ago
£275
Return
found 1 day ago
Select Air Canada flight, departing Fri, 24 Apr from Ottawa to Washington, returning Wed, 29 Apr, priced at £275 found 1 day ago
Air Canada
Sun, 14 Jun - Sun, 21 Jun
YOW
Ottawa
DCA
Washington
£276 Return, found 2 days ago
£276
Return
found 2 days ago
Select Air Canada flight, departing Sun, 14 Jun from Ottawa to Washington, returning Sun, 21 Jun, priced at £276 found 2 days ago
Air Canada
Fri, 24 Apr - Thu, 30 Apr
YOW
Ottawa
DCA
Washington
£277 Return, found 1 day ago
£277
Return
found 1 day ago
Select Air Canada flight, departing Fri, 24 Apr from Ottawa to Washington, returning Thu, 30 Apr, priced at £277 found 1 day ago
Air Canada
Sun, 17 May - Sun, 24 May
YOW
Ottawa
DCA
Washington
£278 Return, found 6 days ago
£278
Return
found 6 days ago
Select Air Canada flight, departing Sun, 17 May from Ottawa to Washington, returning Sun, 24 May, priced at £278 found 6 days ago
American Airlines
Thu, 16 Apr - Fri, 17 Apr
YOW
Ottawa
DCA
Washington
£373 Return, found 6 days ago
£373
Return
found 6 days ago
Select American Airlines flight, departing Thu, 16 Apr from Ottawa to Washington, returning Fri, 17 Apr, priced at £373 found 6 days ago
United
Thu, 16 Apr - Fri, 17 Apr
YOW
Ottawa
DCA
Washington
£405 Return, found 6 days ago
£405
Return
found 6 days ago
Select United flight, departing Thu, 16 Apr from Ottawa to Washington, returning Fri, 17 Apr, priced at £405 found 6 days ago
WestJet
Thu, 14 May - Thu, 21 May
YOW
Ottawa
DCA
Washington
£775 Return, found 6 days ago
£775
Return
found 6 days ago
Select WestJet flight, departing Thu, 14 May from Ottawa to Washington, returning Thu, 21 May, priced at £775 found 6 days ago

Frequently asked questions

How much is a flight from Ottawa Intl. Airport to DCA?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price advertised for a round-trip journey from Macdonald-Cartier Intl. Airport (YOW) to DCA was £248. Fares this good don't last forever, so make sure you book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Ottawa Intl. Airport to Ronald Reagan Washington National Airport (DCA)?
Most flights can be conveniently cancelled online, but whether you incur a fee all comes down to your airline. If you do have to cancel your holiday, follow the instructions in the Customer Service Portal.
How do I find cheap flights from YOW to National Airport 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 Ottawa Intl. Airport to National Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Ottawa Intl. Airport to Ronald Reagan Washington National Airport (DCA)?
The distance from Ottawa Intl. Airport (YOW) to DCA (DCA) is only 730 kilometres. You'll be walking down the air bridge and collecting your suitcase from the carousel before you know it.
Which airlines fly direct from Ottawa International Airport to Ronald Reagan Washington National Airport (DCA)?
Air Canada (AC) will fly you from Macdonald-Cartier Intl. Airport (YOW) to National Airport comfortably and reliably. You can choose from 30 flights each month on this route.
Are Ottawa Intl. Airport to DCA flight tickets cheaper when they're purchased at the last minute?
Booking last minute from Ottawa Intl. Airport to National Airport can be hit-or-miss. You may be able to find a bargain, but you could also miss out entirely! If you'd prefer to start planning ahead of time, Expedia compares flight deals up to a year in advance. Just keep in mind that not all airlines list their prices that far in advance. Our top tip? Check back often as prices are updated regularly.

Travel information

Origin airport
Macdonald-Cartier Intl.
Destination airport
Ronald Reagan Washington National
Airlines serving
Air Canada, American Airlines, United, WestJet
Return price
£247
Distance
724 km
Average flight time
3 hours 58 mins

Explore a world of travel with Expedia

*Available to Expedia members.