Air Miles Calculator

Distance between St Louis, MO (STL) and Laredo, TX (LRD)

Distance from St Louis to Laredo (St. Louis Lambert International Airport – Laredo International Airport) is 934 miles / 1503 kilometers / 811 nautical miles.

How far is Laredo from St Louis?

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

Vincenty's formula (applied above)
  • 933.745 miles
  • 1502.717 kilometers
  • 811.402 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
  • 934.773 miles
  • 1504.371 kilometers
  • 812.295 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).

Flight duration

Estimated flight time from St. Louis Lambert International Airport (STL) to Laredo International Airport (LRD) is 2 hours 16 minutes.

Time difference and current local times

There is no time difference between St Louis and Laredo.

Time Difference

St Louis
Laredo

St Louis, MO

 CDT

Laredo, TX

 CDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 146 kg (322 pounds).

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 Laredo International Airport
City: Laredo, TX
Country: United States Flag of United States
IATA Code: LRD
ICAO Code: KLRD
Coordinates: 27°32′37″N, 99°27′41″W

St Louis to Laredo flight path

Shortest flight path between St. Louis Lambert International Airport (STL) and Laredo International Airport (LRD).

Frequent Flyer Miles Calculator

St Louis (STL) → Laredo (LRD).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
934
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
934

Round trip?