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

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

Distance from Unalaska to Ketchikan

There are several ways to calculate the distance from Unalaska to Ketchikan. 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 Unalaska to Ketchikan?

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

What is the time difference between Unalaska and Ketchikan?

The time difference between Unalaska and Ketchikan is 1 hour. Ketchikan is 1 hour ahead of Unalaska.

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

On average, flying from Unalaska to Ketchikan 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 Unalaska to Ketchikan

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

Airport information

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

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