How far is Helena, MT, from Sal?

The distance between Sal (Amílcar Cabral International Airport) and Helena (Helena Regional Airport) is 5346 miles / 8603 kilometers / 4645 nautical miles.

Distance from Sal to Helena

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

Vincenty's formula (applied above)

• 5345.524 miles
• 8602.787 kilometers
• 4645.133 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

• 5338.629 miles
• 8591.691 kilometers
• 4639.142 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 Sal to Helena?

The estimated flight time from Amílcar Cabral International Airport to Helena Regional Airport is 10 hours and 37 minutes.

What is the time difference between Sal and Helena?

The time difference between Sal and Helena is 6 hours. Helena is 6 hours behind Sal.

Flight carbon footprint between Amílcar Cabral International Airport (SID) and Helena Regional Airport (HLN)

On average, flying from Sal to Helena generates about 629 kg of CO2 per passenger, and 629 kilograms equals 1 387 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Sal to Helena

See the map of the shortest flight path between Amílcar Cabral International Airport (SID) and Helena Regional Airport (HLN).

Airport information

Origin	Amílcar Cabral International Airport
City:	Sal
Country:	Cape Verde
IATA Code:	SID
ICAO Code:	GVAC
Coordinates:	16°44′29″N, 22°56′57″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