Map of flight path and driving directions from St Louis to Idaho Falls.
Shortest flight path between St. Louis Lambert International Airport (STL) and Idaho Falls Regional Airport (IDA).
How far is Idaho Falls from St Louis?
There are several ways to calculate distances between St Louis and Idaho Falls. Here are two common methods:Vincenty's formula (applied above)
- 1175.179 miles
- 1891.268 kilometers
- 1021.203 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
- 1172.518 miles
- 1886.985 kilometers
- 1018.890 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).
Time difference and current local times
The time difference between St Louis and Idaho Falls is 1 hour. Idaho Falls is 1 hour behind St Louis.
St Louis, MO
Idaho Falls, ID
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 160 kg (354 pounds).
Frequent Flyer Miles Calculator
St Louis (STL) → Idaho Falls (IDA).