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

Flight distance from Ottawa to Washington D.C. (Ottawa Macdonald–Cartier International Airport – Washington Dulles International Airport) is 450 miles / 724 kilometers / 391 nautical miles. Estimated flight time is 1 hour 21 minutes.

Driving distance from Ottawa (YOW) to Washington D.C. (IAD) is 555 miles / 893 kilometers and travel time by car is about 10 hours 49 minutes.

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

Shortest flight path between Ottawa Macdonald–Cartier International Airport (YOW) and Washington Dulles International Airport (IAD).

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

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

Vincenty's formula (applied above)
• 449.639 miles
• 723.623 kilometers
• 390.725 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
• 450.052 miles
• 724.288 kilometers
• 391.084 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 Ottawa Macdonald–Cartier International Airport
City: Ottawa
IATA Code: YOW
ICAO Code: CYOW
Coordinates: 45°19′20″N, 75°40′9″W

B Washington Dulles International Airport
City: Washington D.C.
Country: United States
Coordinates: 38°56′40″N, 77°27′20″W

## Time difference and current local times

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

EDT

EDT

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 91 kg (201 pounds).

## Frequent Flyer Miles Calculator

Ottawa (YOW) → Washington D.C. (IAD).

Distance:
450
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
450

Round trip?