Air Miles Calculator

Distance between St Louis, MO (STL) and Harlingen, TX (HRL)

Flight distance from St Louis to Harlingen (St. Louis Lambert International Airport – Valley International Airport) is 961 miles / 1547 kilometers / 835 nautical miles. Estimated flight time is 2 hours 19 minutes.

Driving distance from St Louis (STL) to Harlingen (HRL) is 1168 miles / 1880 kilometers and travel time by car is about 19 hours 57 minutes.

Map of flight path and driving directions from St Louis to Harlingen.

Shortest flight path between St. Louis Lambert International Airport (STL) and Valley International Airport (HRL).

How far is Harlingen from St Louis?

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

Vincenty's formula (applied above)
  • 961.064 miles
  • 1546.683 kilometers
  • 835.142 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
  • 962.757 miles
  • 1549.408 kilometers
  • 836.613 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 St. Louis Lambert International Airport
City: St Louis, MO
Country: United States Flag of United States
IATA Code: STL
ICAO Code: KSTL
Coordinates: 38°44′55″N, 90°22′12″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 St Louis and Harlingen.

Time Difference

St Louis, MO

 CST

Harlingen, TX

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 148 kg (327 pounds).

Frequent Flyer Miles Calculator

St Louis (STL) → Harlingen (HRL).

Distance:
961
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
961

Round trip?