Air Miles Calculator

Distance between Houston, TX (IAH) and Roanoke, VA (ROA)

Distance from Houston to Roanoke (Roanoke–Blacksburg Regional Airport – George Bush Intercontinental Airport) is 1018 miles / 1638 kilometers / 885 nautical miles.

Calculations with different 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).

Flight duration

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.

Time Difference

Houston
Roanoke

Houston, TX

 CST

Roanoke, VA

 EST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 142 kg (312 pounds).

Airport information


A George Bush Intercontinental Airport
City: Houston, TX
Country: United States Flag of United States
IATA Code: IAH
ICAO Code: KIAH
Coordinates: 29°59′3″N, 95°20′29″W

B 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

Map

Houston to Roanoke flight map.

Frequent Flyer Miles Calculator

Houston (IAH) → Roanoke (ROA).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
1018
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1018

Round trip?