# Distance between Cologne (CGN) and Altenrhein (ACH)

Flight distance from Cologne to Altenrhein (Cologne Bonn Airport – St. Gallen–Altenrhein Airport) is 258 miles / 415 kilometers / 224 nautical miles. Estimated flight time is 59 minutes.

Driving distance from Cologne (CGN) to Altenrhein (ACH) is 343 miles / 552 kilometers and travel time by car is about 5 hours 32 minutes.

## Map of flight path and driving directions from Cologne to Altenrhein.

Shortest flight path between Cologne Bonn Airport (CGN) and St. Gallen–Altenrhein Airport (ACH).

## How far is Altenrhein from Cologne?

There are several ways to calculate distances between Cologne and Altenrhein. Here are two common methods:

Vincenty's formula (applied above)
• 258.010 miles
• 415.226 kilometers
• 224.204 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
• 257.835 miles
• 414.945 kilometers
• 224.052 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 Cologne Bonn Airport
City: Cologne
Country: Germany
IATA Code: CGN
ICAO Code: EDDK
Coordinates: 50°51′57″N, 7°8′33″E

B St. Gallen–Altenrhein Airport
City: Altenrhein
Country: Switzerland
IATA Code: ACH
ICAO Code: LSZR
Coordinates: 47°29′6″N, 9°33′38″E

## Time difference and current local times

There is no time difference between Cologne and Altenrhein.

CET

CET

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 63 kg (139 pounds).

## Frequent Flyer Miles Calculator

Cologne (CGN) → Altenrhein (ACH).

Distance:
258
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
258

Round trip?