Air Miles Calculator

Distance between Houston, TX (IAH) and St Louis, MO (STL)

Distance from Houston to St Louis (Houston George Bush Intercontinental Airport – St. Louis Lambert International Airport) is 667 miles / 1074 kilometers / 580 nautical miles.

How far is St Louis from Houston?

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

Vincenty's formula (applied above)
  • 667.306 miles
  • 1073.925 kilometers
  • 579.873 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
  • 668.352 miles
  • 1075.609 kilometers
  • 580.782 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 Houston George Bush Intercontinental Airport (IAH) to St. Louis Lambert International Airport (STL) is 1 hour 45 minutes.

Time difference and current local times

There is no time difference between Houston and St Louis.

Time Difference

Houston
St Louis

Houston, TX

 CDT

St Louis, MO

 CDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 121 kg (267 pounds).

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 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

Houston to St Louis flight path

Shortest flight path between Houston George Bush Intercontinental Airport (IAH) and St. Louis Lambert International Airport (STL).

Frequent Flyer Miles Calculator

Houston (IAH) → St Louis (STL).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
667
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
667

Round trip?