Air Miles Calculator logo

How far is Union Island from Hong Kong?

The distance between Hong Kong (Hong Kong International Airport) and Union Island (Union Island Airport) is 10010 miles / 16109 kilometers / 8698 nautical miles.

Hong Kong International Airport – Union Island Airport

Distance arrow
10010
Miles
Distance arrow
16109
Kilometers
Distance arrow
8698
Nautical miles
Flight time duration
19 h 27 min
CO2 emission
1 303 kg

Search flights

Distance from Hong Kong to Union Island

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

Vincenty's formula (applied above)
  • 10009.949 miles
  • 16109.452 kilometers
  • 8698.408 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
  • 10004.146 miles
  • 16100.113 kilometers
  • 8693.366 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 Hong Kong to Union Island?

The estimated flight time from Hong Kong International Airport to Union Island Airport is 19 hours and 27 minutes.

Flight carbon footprint between Hong Kong International Airport (HKG) and Union Island Airport (UNI)

On average, flying from Hong Kong to Union Island generates about 1 303 kg of CO2 per passenger, and 1 303 kilograms equals 2 873 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Hong Kong to Union Island

See the map of the shortest flight path between Hong Kong International Airport (HKG) and Union Island Airport (UNI).

Airport information

Origin Hong Kong International Airport
City: Hong Kong
Country: Hong Kong Flag of Hong Kong
IATA Code: HKG
ICAO Code: VHHH
Coordinates: 22°18′32″N, 113°54′54″E
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