Map of flight path and driving directions from St Louis to Reading.
Shortest flight path between St. Louis Lambert International Airport (STL) and Reading Regional Airport (RDG).
How far is Reading from St Louis?
There are several ways to calculate distances between St Louis and Reading. Here are two common methods:Vincenty's formula (applied above)
- 776.461 miles
- 1249.592 kilometers
- 674.726 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
- 774.604 miles
- 1246.605 kilometers
- 673.113 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 Reading is 1 hour. Reading is 1 hour ahead of St Louis.
St Louis, MO
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 133 kg (292 pounds).
Frequent Flyer Miles Calculator
St Louis (STL) → Reading (RDG).