How far is Helena, MT, from Hanoi?

The distance between Hanoi (Noi Bai International Airport) and Helena (Helena Regional Airport) is 7202 miles / 11591 kilometers / 6259 nautical miles.

Distance from Hanoi to Helena

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

Vincenty's formula (applied above)

• 7202.446 miles
• 11591.214 kilometers
• 6258.755 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

• 7190.395 miles
• 11571.820 kilometers
• 6248.283 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 Hanoi to Helena?

The estimated flight time from Noi Bai International Airport to Helena Regional Airport is 14 hours and 8 minutes.

What is the time difference between Hanoi and Helena?

The time difference between Hanoi and Helena is 14 hours. Helena is 14 hours behind Hanoi.

Flight carbon footprint between Noi Bai International Airport (HAN) and Helena Regional Airport (HLN)

On average, flying from Hanoi to Helena generates about 883 kg of CO2 per passenger, and 883 kilograms equals 1 948 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Hanoi to Helena

See the map of the shortest flight path between Noi Bai International Airport (HAN) and Helena Regional Airport (HLN).

Airport information

Origin	Noi Bai International Airport
City:	Hanoi
Country:	Vietnam
IATA Code:	HAN
ICAO Code:	VVNB
Coordinates:	21°13′16″N, 105°48′25″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