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How far is Ko Samui from Cairns?

The distance between Cairns (Cairns Airport) and Ko Samui (Samui Airport) is 3615 miles / 5817 kilometers / 3141 nautical miles.

Cairns Airport – Samui Airport

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3615
Miles
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5817
Kilometers
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3141
Nautical miles

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Distance from Cairns to Ko Samui

There are several ways to calculate the distance from Cairns to Ko Samui. Here are two standard methods:

Vincenty's formula (applied above)
  • 3614.747 miles
  • 5817.371 kilometers
  • 3141.129 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
  • 3616.478 miles
  • 5820.157 kilometers
  • 3142.633 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 Cairns to Ko Samui?

The estimated flight time from Cairns Airport to Samui Airport is 7 hours and 20 minutes.

Flight carbon footprint between Cairns Airport (CNS) and Samui Airport (USM)

On average, flying from Cairns to Ko Samui generates about 409 kg of CO2 per passenger, and 409 kilograms equals 901 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Cairns to Ko Samui

See the map of the shortest flight path between Cairns Airport (CNS) and Samui Airport (USM).

Airport information

Origin Cairns Airport
City: Cairns
Country: Australia Flag of Australia
IATA Code: CNS
ICAO Code: YBCS
Coordinates: 16°53′8″S, 145°45′18″E
Destination Samui Airport
City: Ko Samui
Country: Thailand Flag of Thailand
IATA Code: USM
ICAO Code: VTSM
Coordinates: 9°32′52″N, 100°3′43″E