The distance from Lambert-St. Louis International Airport to LA/Ontario International Airport is:
1,795 miles / 2 889 km driving
1,546 miles / 2 489 km flying
Map of distance from STL to ONT
More trip calculations
Distance from STL to ONT
The total driving distance from STL to ONT is 1,795 miles or 2 889 kilometers.
The total straight line flight distance from STL to ONT is 1,546 miles.
This is equivalent to 2 489 kilometers or 1,344 nautical miles.
Your trip begins at Lambert-St. Louis International Airport in Saint Louis, Missouri. It ends at LA/Ontario International Airport in Ontario, California.
Your flight direction from STL to ONT is West (-94 degrees from North).
The distance calculator helps you figure out how far it is to get from STL to ONT. It does this by computing the straight line flying distance ("as the crow flies") and the driving distance if the route is drivable. It uses all this data to compute the total travel mileage.
Lambert-St. Louis International Airport
IATA: STLICAO: KSTL
FAA: STL
City: Saint Louis
State: Missouri
Zip code: 63145
Country: United States
Category: airports
related links
LA/Ontario International Airport
IATA: ONTICAO: KONT
FAA: ONT
City: Ontario
State: California
Zip code: 91761
Country: United States
Category: airports
related links
Distance calculator
Travelmath helps you find distances based on actual road trip directions, or the straight line flight distance. You can get the distance between cities, airports, states, countries, or zip codes to figure out the best route to travel to your destination. Compare the results to the straight line distance to determine whether it's better to drive or fly. 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. You can also print out pages with a travel map.
