Air Miles Calculator

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

Distance from Washington Dulles International Airport to Piedmont Triad 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 Washington Dulles International Airport (IAD) to Piedmont Triad International Airport (GSO) is 57 minutes.

Time difference and current local times

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

Time Difference

Washington D.C.
Greensboro

Washington D.C.

 EST

Greensboro, NC

 EST

Airport information


A 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

B 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

Map

Flight map from Washington D.C. to Greensboro.

Frequent Flyer Miles Calculator

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

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?