How far is Helena, MT, from Athens?

The distance between Athens (Athens International Airport) and Helena (Helena Regional Airport) is 6006 miles / 9665 kilometers / 5219 nautical miles.

Distance from Athens to Helena

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

Vincenty's formula (applied above)

• 6005.724 miles
• 9665.276 kilometers
• 5218.831 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

• 5990.842 miles
• 9641.325 kilometers
• 5205.899 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 Athens to Helena?

The estimated flight time from Athens International Airport to Helena Regional Airport is 11 hours and 52 minutes.

What is the time difference between Athens and Helena?

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

Flight carbon footprint between Athens International Airport (ATH) and Helena Regional Airport (HLN)

On average, flying from Athens to Helena generates about 717 kg of CO2 per passenger, and 717 kilograms equals 1 582 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Athens to Helena

See the map of the shortest flight path between Athens International Airport (ATH) and Helena Regional Airport (HLN).

Airport information

Origin	Athens International Airport
City:	Athens
Country:	Greece
IATA Code:	ATH
ICAO Code:	LGAV
Coordinates:	37°56′11″N, 23°56′40″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