Calculations with different methods
- 1011.912 miles
- 1628.514 kilometers
- 879.327 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
- 1010.077 miles
- 1625.561 kilometers
- 877.733 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance).
Estimated flight time from Dallas/Fort Worth International Airport (DFW) to Roanoke–Blacksburg Regional Airport (ROA) is 2 hours 24 minutes.
Time difference and current local times
The time difference between Dallas and Roanoke is 1 hour. Roanoke is 1 hour ahead of Dallas.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 141 kg (311 pounds).
Dallas to Roanoke flight map.
Frequent Flyer Miles Calculator
Dallas (DFW) → Roanoke (ROA).