Air Miles Calculator

Distance between St Louis, MO (STL) and Alpena, MI (APN)

Flight distance from St Louis to Alpena (St. Louis Lambert International Airport – Alpena County Regional Airport) is 560 miles / 901 kilometers / 487 nautical miles. Estimated flight time is 1 hour 33 minutes.

Driving distance from St Louis (STL) to Alpena (APN) is 694 miles / 1117 kilometers and travel time by car is about 12 hours 52 minutes.

Map of flight path and driving directions from St Louis to Alpena.

Shortest flight path between St. Louis Lambert International Airport (STL) and Alpena County Regional Airport (APN).

How far is Alpena from St Louis?

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

Vincenty's formula (applied above)
  • 559.967 miles
  • 901.180 kilometers
  • 486.598 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
  • 559.775 miles
  • 900.871 kilometers
  • 486.431 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).

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 Alpena County Regional Airport
City: Alpena, MI
Country: United States Flag of United States
IATA Code: APN
ICAO Code: KAPN
Coordinates: 45°4′41″N, 83°33′37″W

Time difference and current local times

The time difference between St Louis and Alpena is 1 hour. Alpena is 1 hour ahead of St Louis.

Time Difference

St Louis, MO

 CST

Alpena, MI

 EST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 107 kg (237 pounds).

Frequent Flyer Miles Calculator

St Louis (STL) → Alpena (APN).

Distance:
560
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
560

Round trip?