Air Miles Calculator

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

Flight distance from Houston to Roanoke (Houston William P. Hobby Airport – Roanoke–Blacksburg Regional Airport) is 1028 miles / 1655 kilometers / 893 nautical miles. Estimated flight time is 2 hours 26 minutes.

Driving distance from Houston (HOU) to Roanoke (ROA) is 1182 miles / 1903 kilometers and travel time by car is about 20 hours 32 minutes.

Map of flight path and driving directions from Houston to Roanoke.

Shortest flight path between Houston William P. Hobby Airport (HOU) and Roanoke–Blacksburg Regional Airport (ROA).

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)
  • 1028.137 miles
  • 1654.626 kilometers
  • 893.427 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
  • 1027.217 miles
  • 1653.146 kilometers
  • 892.627 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).

Airport information


A Houston William P. Hobby Airport
City: Houston, TX
Country: United States Flag of United States
IATA Code: HOU
ICAO Code: KHOU
Coordinates: 29°38′43″N, 95°16′44″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

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, TX

 CDT

Roanoke, VA

 EDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 153 kg (336 pounds).

Frequent Flyer Miles Calculator

Houston (HOU) → Roanoke (ROA).

Distance:
1028
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1028

Round trip?