How far is Unalaska, AK, from Ketchikan, AK?

The distance between Ketchikan (Ketchikan International Airport) and Unalaska (Unalaska Airport) is 1387 miles / 2232 kilometers / 1205 nautical miles.

Distance from Ketchikan to Unalaska

There are several ways to calculate the distance from Ketchikan to Unalaska. Here are two standard methods:

Vincenty's formula (applied above)

• 1386.864 miles
• 2231.941 kilometers
• 1205.152 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.

Haversine formula

• 1382.245 miles
• 2224.508 kilometers
• 1201.138 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).

How long does it take to fly from Ketchikan to Unalaska?

The estimated flight time from Ketchikan International Airport to Unalaska Airport is 3 hours and 7 minutes.

What is the time difference between Ketchikan and Unalaska?

The time difference between Ketchikan and Unalaska is 1 hour. Unalaska is 1 hour behind Ketchikan.

Flight carbon footprint between Ketchikan International Airport (KTN) and Unalaska Airport (DUT)

On average, flying from Ketchikan to Unalaska generates about 172 kg of CO2 per passenger, and 172 kilograms equals 380 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Ketchikan to Unalaska

See the map of the shortest flight path between Ketchikan International Airport (KTN) and Unalaska Airport (DUT).

Airport information

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

Destination	Unalaska Airport
City:	Unalaska, AK
Country:	United States
IATA Code:	DUT
ICAO Code:	PADU
Coordinates:	53°54′0″N, 166°32′38″W