Air Miles Calculator

Distance between Columbus, OH (CMH) and Washington D.C. (IAD)

Distance from John Glenn Columbus International Airport to Washington Dulles International Airport is 300 miles / 482 kilometers / 260 nautical miles.

Calculations with different methods

Vincenty's formula (applied above)
  • 299.553 miles
  • 482.083 kilometers
  • 260.304 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
  • 298.884 miles
  • 481.007 kilometers
  • 259.723 nautical miles

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

Flight duration

Estimated flight time from John Glenn Columbus International Airport (CMH) to Washington Dulles International Airport (IAD) is 1 hour 4 minutes.

Time difference and current local times

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

Time Difference

Columbus
Washington D.C.

Columbus, OH

 EST

Washington D.C.

 EST

Airport information


A John Glenn Columbus International Airport
City: Columbus, OH
Country: United States Flag of United States
IATA Code: CMH
ICAO Code: KCMH
Coordinates: 39°59′52″N, 82°53′30″W

B Washington Dulles International Airport
City: Washington D.C.
Country: United States Flag of United States
IATA Code: IAD
ICAO Code: KIAD
Coordinates: 38°56′40″N, 77°27′20″W

Map

Flight map from Columbus to Washington D.C..

Frequent Flyer Miles Calculator

Columbus (CMH) → Washington D.C. (IAD).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
300
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
300

Round trip?