How far is Unalaska, AK, from Billings, MT?

The distance between Billings (Billings Logan International Airport) and Unalaska (Unalaska Airport) is 2575 miles / 4144 kilometers / 2238 nautical miles.

Distance from Billings to Unalaska

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

Vincenty's formula (applied above)

• 2574.941 miles
• 4143.967 kilometers
• 2237.563 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

• 2567.395 miles
• 4131.821 kilometers
• 2231.005 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 Billings to Unalaska?

The estimated flight time from Billings Logan International Airport to Unalaska Airport is 5 hours and 22 minutes.

What is the time difference between Billings and Unalaska?

The time difference between Billings and Unalaska is 3 hours. Unalaska is 3 hours behind Billings.

Flight carbon footprint between Billings Logan International Airport (BIL) and Unalaska Airport (DUT)

On average, flying from Billings to Unalaska generates about 284 kg of CO2 per passenger, and 284 kilograms equals 626 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Billings to Unalaska

See the map of the shortest flight path between Billings Logan International Airport (BIL) and Unalaska Airport (DUT).

Airport information

Origin	Billings Logan International Airport
City:	Billings, MT
Country:	United States
IATA Code:	BIL
ICAO Code:	KBIL
Coordinates:	45°48′27″N, 108°32′34″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