Air Miles Calculator

Distance between Houston, TX (IAH) and Harlingen, TX (HRL)

Flight distance from Houston to Harlingen (Houston George Bush Intercontinental Airport – Valley International Airport) is 295 miles / 474 kilometers / 256 nautical miles. Estimated flight time is 1 hour 3 minutes.

Driving distance from Houston (IAH) to Harlingen (HRL) is 359 miles / 577 kilometers and travel time by car is about 6 hours 35 minutes.

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

Shortest flight path between Houston George Bush Intercontinental Airport (IAH) and Valley International Airport (HRL).

How far is Harlingen from Houston?

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

Vincenty's formula (applied above)
  • 294.660 miles
  • 474.209 kilometers
  • 256.053 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
  • 295.300 miles
  • 475.240 kilometers
  • 256.609 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 Valley International Airport
City: Harlingen, TX
Country: United States Flag of United States
IATA Code: HRL
ICAO Code: KHRL
Coordinates: 26°13′42″N, 97°39′15″W

Time difference and current local times

There is no time difference between Houston and Harlingen.

Time Difference

Houston, TX

 CST

Harlingen, TX

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 68 kg (151 pounds).

Frequent Flyer Miles Calculator

Houston (IAH) → Harlingen (HRL).

Distance:
295
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
295

Round trip?