The flight distance from William P. Hobby Airport to Lambert-St. Louis International Airport is:

687 miles / 1 106 km

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Flight path from HOU to STL

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Distance from HOU to STL

The total distance from HOU to STL is 687 miles.

This is equivalent to 1 106 kilometers or 597 nautical miles.

Your trip begins at William P. Hobby Airport in Houston, Texas.
It ends at Lambert-St. Louis International Airport in Saint Louis, Missouri.

Your flight direction from HOU to STL is Northeast (23 degrees from North).

The distance calculator helps you figure out how far it is to fly from HOU to STL. It does this by computing the straight line flying distance ("as the crow flies"). It uses the great circle formula to compute the total travel mileage.

William P. Hobby Airport

IATA: HOU
ICAO: KHOU
FAA: HOU
City: Houston
State: Texas
Zip code: 77061
Country: United States
Category: airports

Lambert-St. Louis International Airport

IATA: STL
ICAO: KSTL
FAA: STL
City: Saint Louis
State: Missouri
Zip code: 63145
Country: United States
Category: airports

Flight distance calculator

Travelmath provides an online flight distance calculator to get the distance between cities. You can also compare all types of locations including airports, cities, states, countries, or zip codes to find the distance between any two points. The database uses the latitude and longitude of each location to calculate distance using the great circle distance formula. The calculation is done using the Vincenty algorithm and the WGS84 ellipsoid model of the Earth, which is the same one used by most GPS receivers. This gives you the flying distance "as the crow flies." Find your flight distances quickly to estimate the number of frequent flyer miles you'll accumulate. Or ask how far is it between cities to solve your homework problems. You can lookup U.S. cities, or expand your search to get the world distance for international trips.