How far is Helena, MT, from Santorini?

The distance between Santorini (Santorini (Thira) International Airport) and Helena (Helena Regional Airport) is 6139 miles / 9880 kilometers / 5335 nautical miles.

Distance from Santorini to Helena

There are several ways to calculate the distance from Santorini to Helena. Here are two standard methods:

Vincenty's formula (applied above)

• 6139.137 miles
• 9879.983 kilometers
• 5334.764 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

• 6124.347 miles
• 9856.181 kilometers
• 5321.912 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 Santorini to Helena?

The estimated flight time from Santorini (Thira) International Airport to Helena Regional Airport is 12 hours and 7 minutes.

What is the time difference between Santorini and Helena?

The time difference between Santorini and Helena is 9 hours. Helena is 9 hours behind Santorini.

Flight carbon footprint between Santorini (Thira) International Airport (JTR) and Helena Regional Airport (HLN)

On average, flying from Santorini to Helena generates about 736 kg of CO2 per passenger, and 736 kilograms equals 1 622 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Santorini to Helena

See the map of the shortest flight path between Santorini (Thira) International Airport (JTR) and Helena Regional Airport (HLN).

Airport information

Origin	Santorini (Thira) International Airport
City:	Santorini
Country:	Greece
IATA Code:	JTR
ICAO Code:	LGSR
Coordinates:	36°23′57″N, 25°28′45″E

Destination	Helena Regional Airport
City:	Helena, MT
Country:	United States
IATA Code:	HLN
ICAO Code:	KHLN
Coordinates:	46°36′24″N, 111°58′58″W