How far is Helena, MT, from La Romana?

The distance between La Romana (La Romana International Airport) and Helena (Helena Regional Airport) is 3116 miles / 5015 kilometers / 2708 nautical miles.

Distance from La Romana to Helena

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

Vincenty's formula (applied above)

• 3115.963 miles
• 5014.656 kilometers
• 2707.698 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

• 3115.176 miles
• 5013.389 kilometers
• 2707.014 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 La Romana to Helena?

The estimated flight time from La Romana International Airport to Helena Regional Airport is 6 hours and 23 minutes.

What is the time difference between La Romana and Helena?

The time difference between La Romana and Helena is 3 hours. Helena is 3 hours behind La Romana.

Flight carbon footprint between La Romana International Airport (LRM) and Helena Regional Airport (HLN)

On average, flying from La Romana to Helena generates about 348 kg of CO2 per passenger, and 348 kilograms equals 767 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from La Romana to Helena

See the map of the shortest flight path between La Romana International Airport (LRM) and Helena Regional Airport (HLN).

Airport information

Origin	La Romana International Airport
City:	La Romana
Country:	Dominican Republic
IATA Code:	LRM
ICAO Code:	MDLR
Coordinates:	18°27′2″N, 68°54′42″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