How far is Unalaska, AK, from Blountville, TN?

The distance between Blountville (Blountville Tri-Cities Regional Airport) and Unalaska (Unalaska Airport) is 4023 miles / 6474 kilometers / 3496 nautical miles.

Distance from Blountville to Unalaska

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

Vincenty's formula (applied above)

• 4022.867 miles
• 6474.177 kilometers
• 3495.776 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

• 4012.967 miles
• 6458.244 kilometers
• 3487.173 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 Blountville to Unalaska?

The estimated flight time from Blountville Tri-Cities Regional Airport to Unalaska Airport is 8 hours and 7 minutes.

What is the time difference between Blountville and Unalaska?

The time difference between Blountville and Unalaska is 5 hours. Unalaska is 5 hours behind Blountville.

Flight carbon footprint between Blountville Tri-Cities Regional Airport (TRI) and Unalaska Airport (DUT)

On average, flying from Blountville to Unalaska generates about 459 kg of CO2 per passenger, and 459 kilograms equals 1 012 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Blountville to Unalaska

See the map of the shortest flight path between Blountville Tri-Cities Regional Airport (TRI) and Unalaska Airport (DUT).

Airport information

Origin	Blountville Tri-Cities Regional Airport
City:	Blountville, TN
Country:	United States
IATA Code:	TRI
ICAO Code:	KTRI
Coordinates:	36°28′30″N, 82°24′26″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