Air Miles Calculator

Distance between Houston, TX (IAH) and Grayling, AK (KGX)

Flight distance from Houston to Grayling (Houston George Bush Intercontinental Airport – Grayling Airport) is 3610 miles / 5810 kilometers / 3137 nautical miles. Estimated flight time is 7 hours 20 minutes.

Driving distance from Houston (IAH) to Grayling (KGX) is 4671 miles / 7517 kilometers and travel time by car is about 133 hours 3 minutes.

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

Shortest flight path between Houston George Bush Intercontinental Airport (IAH) and Grayling Airport (KGX).

How far is Grayling from Houston?

There are several ways to calculate distances between Houston and Grayling. Here are two common methods:

Vincenty's formula (applied above)
  • 3609.870 miles
  • 5809.523 kilometers
  • 3136.891 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
  • 3604.332 miles
  • 5800.610 kilometers
  • 3132.079 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 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 Grayling Airport
City: Grayling, AK
Country: United States Flag of United States
IATA Code: KGX
ICAO Code: PAGX
Coordinates: 62°53′42″N, 160°3′58″W

Time difference and current local times

The time difference between Houston and Grayling is 3 hours. Grayling is 3 hours behind Houston.

Time Difference

Houston, TX

 CST

Grayling, AK

 AKST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 408 kg (900 pounds).

Frequent Flyer Miles Calculator

Houston (IAH) → Grayling (KGX).

Distance:
3610
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
3610

Round trip?