Air Miles Calculator

Distance between Greensboro, NC (GSO) and Washington D.C. (IAD)

Distance from Piedmont Triad International Airport to Washington Dulles International Airport is 239 miles / 385 kilometers / 208 nautical miles.

Calculations with different methods

Vincenty's formula (applied above)
  • 238.977 miles
  • 384.596 kilometers
  • 207.665 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
  • 239.096 miles
  • 384.787 kilometers
  • 207.769 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 Piedmont Triad International Airport (GSO) to Washington Dulles International Airport (IAD) is 57 minutes.

Time difference and current local times

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

Time Difference

Greensboro
Washington D.C.

Greensboro, NC

 EST

Washington D.C.

 EST

Airport information


A Piedmont Triad International Airport
City: Greensboro, NC
Country: United States Flag of United States
IATA Code: GSO
ICAO Code: KGSO
Coordinates: 36°5′52″N, 79°56′14″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 Greensboro to Washington D.C..

Frequent Flyer Miles Calculator

Greensboro (GSO) → Washington D.C. (IAD).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
239
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
239

Round trip?