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

The distance between Petersburg (Petersburg James A. Johnson Airport) and Unalaska (Unalaska Airport) is 1326 miles / 2133 kilometers / 1152 nautical miles.

Distance from Petersburg to Unalaska

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

Vincenty's formula (applied above)

• 1325.656 miles
• 2133.436 kilometers
• 1151.963 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

• 1321.239 miles
• 2126.328 kilometers
• 1148.126 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 Petersburg to Unalaska?

The estimated flight time from Petersburg James A. Johnson Airport to Unalaska Airport is 3 hours and 0 minutes.

What is the time difference between Petersburg and Unalaska?

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

Flight carbon footprint between Petersburg James A. Johnson Airport (PSG) and Unalaska Airport (DUT)

On average, flying from Petersburg to Unalaska generates about 169 kg of CO2 per passenger, and 169 kilograms equals 371 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Petersburg to Unalaska

See the map of the shortest flight path between Petersburg James A. Johnson Airport (PSG) and Unalaska Airport (DUT).

Airport information

Origin	Petersburg James A. Johnson Airport
City:	Petersburg, AK
Country:	United States
IATA Code:	PSG
ICAO Code:	PAPG
Coordinates:	56°48′6″N, 132°56′42″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