# Distance between Washington D.C. (DCA) and Ottawa (YOW)

Flight distance from Washington D.C. to Ottawa (Ronald Reagan Washington National Airport – Ottawa Macdonald–Cartier International Airport) is 452 miles / 728 kilometers / 393 nautical miles. Estimated flight time is 1 hour 21 minutes.

Driving distance from Washington D.C. (DCA) to Ottawa (YOW) is 558 miles / 898 kilometers and travel time by car is about 10 hours 48 minutes.

## Map of flight path and driving directions from Washington D.C. to Ottawa.

Shortest flight path between Ronald Reagan Washington National Airport (DCA) and Ottawa Macdonald–Cartier International Airport (YOW).

## How far is Ottawa from Washington D.C.?

There are several ways to calculate distances between Washington D.C. and Ottawa. Here are two common methods:

Vincenty's formula (applied above)
• 452.067 miles
• 727.532 kilometers
• 392.836 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.

Haversine formula
• 452.515 miles
• 728.253 kilometers
• 393.225 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).

## Airport information

A Ronald Reagan Washington National Airport
City: Washington D.C.
Country: United States
IATA Code: DCA
ICAO Code: KDCA
Coordinates: 38°51′7″N, 77°2′15″W

B Ottawa Macdonald–Cartier International Airport
City: Ottawa
IATA Code: YOW
ICAO Code: CYOW
Coordinates: 45°19′20″N, 75°40′9″W

## Time difference and current local times

There is no time difference between Washington D.C. and Ottawa.

EST

EST

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 92 kg (202 pounds).

## Frequent Flyer Miles Calculator

Washington D.C. (DCA) → Ottawa (YOW).

Distance:
452
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
452

Round trip?