Air Miles Calculator logo

How far is Helena, MT, from Saint Thomas?

The distance between Saint Thomas (Cyril E. King Airport) and Helena (Helena Regional Airport) is 3296 miles / 5304 kilometers / 2864 nautical miles.

Cyril E. King Airport – Helena Regional Airport

Distance arrow
3296
Miles
Distance arrow
5304
Kilometers
Distance arrow
2864
Nautical miles

Search flights

Distance from Saint Thomas to Helena

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

Vincenty's formula (applied above)
  • 3295.754 miles
  • 5304.002 kilometers
  • 2863.932 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
  • 3294.347 miles
  • 5301.738 kilometers
  • 2862.709 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 Saint Thomas to Helena?

The estimated flight time from Cyril E. King Airport to Helena Regional Airport is 6 hours and 44 minutes.

Flight carbon footprint between Cyril E. King Airport (STT) and Helena Regional Airport (HLN)

On average, flying from Saint Thomas to Helena generates about 370 kg of CO2 per passenger, and 370 kilograms equals 815 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Saint Thomas to Helena

See the map of the shortest flight path between Cyril E. King Airport (STT) and Helena Regional Airport (HLN).

Airport information

Origin Cyril E. King Airport
City: Saint Thomas
Country: U.S. Virgin Islands Flag of U.S. Virgin Islands
IATA Code: STT
ICAO Code: TIST
Coordinates: 18°20′14″N, 64°58′24″W
Destination Helena Regional Airport
City: Helena, MT
Country: United States Flag of United States
IATA Code: HLN
ICAO Code: KHLN
Coordinates: 46°36′24″N, 111°58′58″W