How far is Roanoke from Houston?
There are several ways to calculate distances between Houston and Roanoke. Here are two common methods:Vincenty's formula (applied above)
- 1018.032 miles
- 1638.363 kilometers
- 884.645 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
- 1017.021 miles
- 1636.737 kilometers
- 883.767 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).
Estimated flight time from George Bush Intercontinental Airport (IAH) to Roanoke–Blacksburg Regional Airport (ROA) is 2 hours 25 minutes.
Time difference and current local times
The time difference between Houston and Roanoke is 1 hour. Roanoke is 1 hour ahead of Houston.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 152 kg (335 pounds).
Houston to Roanoke flight path
Shortest flight path between George Bush Intercontinental Airport (IAH) and Roanoke–Blacksburg Regional Airport (ROA).
Frequent Flyer Miles Calculator
Houston (IAH) → Roanoke (ROA).