Air Miles Calculator

Distance between St Louis, MO (STL) and Reading, PA (RDG)

Distance from St Louis to Reading (St. Louis Lambert International Airport – Reading Regional Airport) is 776 miles / 1250 kilometers / 675 nautical miles.

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).

Flight duration

Estimated flight time from St. Louis Lambert International Airport (STL) to Reading Regional Airport (RDG) is 1 hour 58 minutes.

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.

Time Difference

St Louis
Reading

St Louis, MO

 CST

Reading, PA

 EST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 133 kg (292 pounds).

Airport information


A St. Louis Lambert International Airport
City: St Louis, MO
Country: United States Flag of United States
IATA Code: STL
ICAO Code: KSTL
Coordinates: 38°44′55″N, 90°22′12″W

B Reading Regional Airport
City: Reading, PA
Country: United States Flag of United States
IATA Code: RDG
ICAO Code: KRDG
Coordinates: 40°22′42″N, 75°57′54″W

Map

St Louis to Reading flight map.

Frequent Flyer Miles Calculator

St Louis (STL) → Reading (RDG).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
776
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
776

Round trip?