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).
Time difference and current local times
There is no time difference between Washington D.C. and Ottawa.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 92 kg (202 pounds).
Frequent Flyer Miles Calculator
Washington D.C. (DCA) → Ottawa (YOW).