Air Miles Calculator

Distance between Rochester, MN (RST) and Decatur, IL (DEC)

Distance from Rochester to Decatur (Rochester International Airport – Decatur Airport) is 338 miles / 544 kilometers / 294 nautical miles.

How far is Decatur from Rochester?

There are several ways to calculate distances between Rochester and Decatur. Here are two common methods:

Vincenty's formula (applied above)
  • 337.841 miles
  • 543.703 kilometers
  • 293.576 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
  • 337.833 miles
  • 543.689 kilometers
  • 293.569 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 Rochester International Airport (RST) to Decatur Airport (DEC) is 1 hour 8 minutes.

Time difference and current local times

There is no time difference between Rochester and Decatur.

Time Difference

Rochester
Decatur

Rochester, MN

 CDT

Decatur, IL

 CDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 73 kg (161 pounds).

Airport information


A Rochester International Airport
City: Rochester, MN
Country: United States Flag of United States
IATA Code: RST
ICAO Code: KRST
Coordinates: 43°54′29″N, 92°30′0″W

B Decatur Airport
City: Decatur, IL
Country: United States Flag of United States
IATA Code: DEC
ICAO Code: KDEC
Coordinates: 39°50′4″N, 88°51′56″W

Rochester to Decatur flight path

Shortest flight path between Rochester International Airport (RST) and Decatur Airport (DEC).

Frequent Flyer Miles Calculator

Rochester (RST) → Decatur (DEC).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
338
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
338

Round trip?