Air Miles Calculator

Distance between St Louis, MO (STL) and Rockford, IL (RFD)

Distance from St Louis to Rockford (St. Louis Lambert International Airport – Chicago Rockford International Airport) is 247 miles / 398 kilometers / 215 nautical miles.

How far is Rockford from St Louis?

There are several ways to calculate distances between St Louis and Rockford. Here are two common methods:

Vincenty's formula (applied above)
  • 247.088 miles
  • 397.649 kilometers
  • 214.713 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
  • 247.354 miles
  • 398.077 kilometers
  • 214.945 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 Chicago Rockford International Airport (RFD) is 58 minutes.

Time difference and current local times

There is no time difference between St Louis and Rockford.

Time Difference

St Louis
Rockford

St Louis, MO

 CST

Rockford, IL

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 59 kg (130 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 Chicago Rockford International Airport
City: Rockford, IL
Country: United States Flag of United States
IATA Code: RFD
ICAO Code: KRFD
Coordinates: 42°11′43″N, 89°5′49″W

Map

St Louis to Rockford flight map.

Frequent Flyer Miles Calculator

St Louis (STL) → Rockford (RFD).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
247
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
247

Round trip?