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How far is Union Island from Charleston, SC?

The distance between Charleston (Charleston International Airport) and Union Island (Union Island Airport) is 1828 miles / 2941 kilometers / 1588 nautical miles.

Charleston International Airport – Union Island Airport

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1828
Miles
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2941
Kilometers
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1588
Nautical miles

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Distance from Charleston to Union Island

There are several ways to calculate the distance from Charleston to Union Island. Here are two standard methods:

Vincenty's formula (applied above)
  • 1827.600 miles
  • 2941.237 kilometers
  • 1588.141 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
  • 1830.671 miles
  • 2946.179 kilometers
  • 1590.809 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 Charleston to Union Island?

The estimated flight time from Charleston International Airport to Union Island Airport is 3 hours and 57 minutes.

Flight carbon footprint between Charleston International Airport (CHS) and Union Island Airport (UNI)

On average, flying from Charleston to Union Island generates about 202 kg of CO2 per passenger, and 202 kilograms equals 446 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Charleston to Union Island

See the map of the shortest flight path between Charleston International Airport (CHS) and Union Island Airport (UNI).

Airport information

Origin Charleston International Airport
City: Charleston, SC
Country: United States Flag of United States
IATA Code: CHS
ICAO Code: KCHS
Coordinates: 32°53′54″N, 80°2′25″W
Destination Union Island Airport
City: Union Island
Country: Saint Vincent and the Grenadines Flag of Saint Vincent and the Grenadines
IATA Code: UNI
ICAO Code: TVSU
Coordinates: 12°36′0″N, 61°24′43″W