How far is Helena, MT, from Roatan?

The distance between Roatan (Juan Manuel Gálvez International Airport) and Helena (Helena Regional Airport) is 2548 miles / 4101 kilometers / 2214 nautical miles.

Distance from Roatan to Helena

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

Vincenty's formula (applied above)

• 2548.046 miles
• 4100.683 kilometers
• 2214.192 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

• 2551.074 miles
• 4105.555 kilometers
• 2216.822 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 Roatan to Helena?

The estimated flight time from Juan Manuel Gálvez International Airport to Helena Regional Airport is 5 hours and 19 minutes.

What is the time difference between Roatan and Helena?

The time difference between Roatan and Helena is 1 hour. Helena is 1 hour behind Roatan.

Flight carbon footprint between Juan Manuel Gálvez International Airport (RTB) and Helena Regional Airport (HLN)

On average, flying from Roatan to Helena generates about 281 kg of CO2 per passenger, and 281 kilograms equals 619 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Roatan to Helena

See the map of the shortest flight path between Juan Manuel Gálvez International Airport (RTB) and Helena Regional Airport (HLN).

Airport information

Origin	Juan Manuel Gálvez International Airport
City:	Roatan
Country:	Honduras
IATA Code:	RTB
ICAO Code:	MHRO
Coordinates:	16°19′0″N, 86°31′22″W

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