Air Miles Calculator

Distance between Chicago, IL (ORD) and Alpena, MI (APN)

Flight distance from Chicago to Alpena (Chicago O'Hare International Airport – Alpena County Regional Airport) is 306 miles / 492 kilometers / 266 nautical miles. Estimated flight time is 1 hour 4 minutes.

Driving distance from Chicago (ORD) to Alpena (APN) is 434 miles / 699 kilometers and travel time by car is about 8 hours 25 minutes.

Map of flight path and driving directions from Chicago to Alpena.

Shortest flight path between Chicago O'Hare International Airport (ORD) and Alpena County Regional Airport (APN).

How far is Alpena from Chicago?

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

Vincenty's formula (applied above)
  • 305.542 miles
  • 491.722 kilometers
  • 265.509 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
  • 305.246 miles
  • 491.245 kilometers
  • 265.251 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 Chicago O'Hare International Airport
City: Chicago, IL
Country: United States Flag of United States
IATA Code: ORD
ICAO Code: KORD
Coordinates: 41°58′42″N, 87°54′17″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 Chicago and Alpena is 1 hour. Alpena is 1 hour ahead of Chicago.

Time Difference

Chicago, IL

 CDT

Alpena, MI

 EDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 70 kg (154 pounds).

Frequent Flyer Miles Calculator

Chicago (ORD) → Alpena (APN).

Distance:
306
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
306

Round trip?