How far is Helena, MT, from Chittagong?

The distance between Chittagong (Shah Amanat International Airport) and Helena (Helena Regional Airport) is 7465 miles / 12013 kilometers / 6487 nautical miles.

Distance from Chittagong to Helena

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

Vincenty's formula (applied above)

• 7464.813 miles
• 12013.452 kilometers
• 6486.745 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

• 7452.242 miles
• 11993.221 kilometers
• 6475.821 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 Chittagong to Helena?

The estimated flight time from Shah Amanat International Airport to Helena Regional Airport is 14 hours and 38 minutes.

What is the time difference between Chittagong and Helena?

The time difference between Chittagong and Helena is 13 hours. Helena is 13 hours behind Chittagong.

Flight carbon footprint between Shah Amanat International Airport (CGP) and Helena Regional Airport (HLN)

On average, flying from Chittagong to Helena generates about 921 kg of CO2 per passenger, and 921 kilograms equals 2 030 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Chittagong to Helena

See the map of the shortest flight path between Shah Amanat International Airport (CGP) and Helena Regional Airport (HLN).

Airport information

Origin	Shah Amanat International Airport
City:	Chittagong
Country:	Bangladesh
IATA Code:	CGP
ICAO Code:	VGEG
Coordinates:	22°14′58″N, 91°48′47″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