Air Miles Calculator

Distance between Roanoke, VA (ROA) and Washington D.C. (IAD)

Distance from Roanoke to Washington D.C. (Washington Dulles International Airport – Roanoke–Blacksburg Regional Airport) is 177 miles / 285 kilometers / 154 nautical miles.

Calculations with different methods

Vincenty's formula (applied above)
  • 176.930 miles
  • 284.741 kilometers
  • 153.748 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
  • 176.800 miles
  • 284.532 kilometers
  • 153.635 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 Roanoke–Blacksburg Regional Airport (ROA) to Washington Dulles International Airport (IAD) is 50 minutes.

Time difference and current local times

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

Time Difference

Roanoke
Washington D.C.

Roanoke, VA

 EDT

Washington D.C.

 EDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 49 kg (107 pounds).

Airport information


A Roanoke–Blacksburg Regional Airport
City: Roanoke, VA
Country: United States Flag of United States
IATA Code: ROA
ICAO Code: KROA
Coordinates: 37°19′31″N, 79°58′31″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

Roanoke to Washington D.C. flight map.

Frequent Flyer Miles Calculator

Roanoke (ROA) → Washington D.C. (IAD).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
177
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
177

Round trip?