Distance between Houston, TX (HOU) and St Louis, MO (STL)
Flight distance from Houston to St Louis (Houston William P. Hobby Airport – St. Louis Lambert International Airport) is 687 miles / 1106 kilometers / 597 nautical miles. Estimated flight time is 1 hour 48 minutes.
Driving distance from Houston (HOU) to St Louis (STL) is 803 miles / 1293 kilometers and travel time by car is about 14 hours 47 minutes.
Calculate Distance
Search by airport name, city or IATA airport code.
Multiple airports
Houston - St Louis
Map of flight path and driving directions from Houston to St Louis.
Shortest flight path between Houston William P. Hobby Airport (HOU) and St. Louis Lambert International Airport (STL).
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)- 687.267 miles
- 1106.049 kilometers
- 597.219 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- 688.405 miles
- 1107.880 kilometers
- 598.208 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 William P. Hobby Airport |
|---|---|
| City: | Houston, TX |
| Country: | United States  |
| IATA Code: | HOU |
| ICAO Code: | KHOU |
| Coordinates: | 29°38′43″N, 95°16′44″W |
| B | St. Louis Lambert International Airport |
|---|---|
| City: | St Louis, MO |
| Country: | United States |
| IATA Code: | STL |
| ICAO Code: | KSTL |
| Coordinates: | 38°44′55″N, 90°22′12″W |
Time difference and current local times
There is no time difference between Houston and St Louis.
Time Difference
Houston, TX
St Louis, MO
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 123 kg (272 pounds).
Frequent Flyer Miles Calculator
Houston (HOU) → St Louis (STL).
In total
Round trip?