How far is Helena, MT, from Southampton?

The distance between Southampton (Southampton Airport) and Helena (Helena Regional Airport) is 4551 miles / 7325 kilometers / 3955 nautical miles.

Distance from Southampton to Helena

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

Vincenty's formula (applied above)

• 4551.424 miles
• 7324.807 kilometers
• 3955.080 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

• 4537.952 miles
• 7303.126 kilometers
• 3943.373 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 Southampton to Helena?

The estimated flight time from Southampton Airport to Helena Regional Airport is 9 hours and 7 minutes.

What is the time difference between Southampton and Helena?

The time difference between Southampton and Helena is 7 hours. Helena is 7 hours behind Southampton.

Flight carbon footprint between Southampton Airport (SOU) and Helena Regional Airport (HLN)

On average, flying from Southampton to Helena generates about 526 kg of CO2 per passenger, and 526 kilograms equals 1 160 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Southampton to Helena

See the map of the shortest flight path between Southampton Airport (SOU) and Helena Regional Airport (HLN).

Airport information

Origin	Southampton Airport
City:	Southampton
Country:	United Kingdom
IATA Code:	SOU
ICAO Code:	EGHI
Coordinates:	50°57′1″N, 1°21′24″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