Map of flight path and driving directions from Houston to Harlingen.
Shortest flight path between Houston William P. Hobby Airport (HOU) 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)
- 276.499 miles
- 444.982 kilometers
- 240.271 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
- 277.039 miles
- 445.850 kilometers
- 240.740 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).
Time difference and current local times
There is no time difference between Houston and Harlingen.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 66 kg (145 pounds).
Frequent Flyer Miles Calculator
Houston (HOU) → Harlingen (HRL).