# Distance between Casper, WY (CPR) and Ketchikan, AK (KTN)

Flight distance from Casper to Ketchikan (Casper–Natrona County International Airport – Ketchikan International Airport) is 1419 miles / 2283 kilometers / 1233 nautical miles. Estimated flight time is 3 hours 11 minutes.

Driving distance from Casper (CPR) to Ketchikan (KTN) is 1862 miles / 2997 kilometers and travel time by car is about 39 hours 17 minutes.

## Map of flight path and driving directions from Casper to Ketchikan.

Shortest flight path between Casper–Natrona County International Airport (CPR) and Ketchikan International Airport (KTN).

## How far is Ketchikan from Casper?

There are several ways to calculate distances between Casper and Ketchikan. Here are two common methods:

Vincenty's formula (applied above)
• 1418.639 miles
• 2283.077 kilometers
• 1232.763 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
• 1415.858 miles
• 2278.602 kilometers
• 1230.347 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 Casper–Natrona County International Airport
City: Casper, WY
Country: United States
IATA Code: CPR
ICAO Code: KCPR
Coordinates: 42°54′28″N, 106°27′50″W

B Ketchikan International Airport
City: Ketchikan, AK
Country: United States
IATA Code: KTN
ICAO Code: PAKT
Coordinates: 55°21′19″N, 131°42′38″W

## Time difference and current local times

The time difference between Casper and Ketchikan is 2 hours. Ketchikan is 2 hours behind Casper.

MST

AKST

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 174 kg (384 pounds).

## Frequent Flyer Miles Calculator

Casper (CPR) → Ketchikan (KTN).

Distance:
1419
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
1419

Round trip?