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How far is Ko Samui from Kathmandu?

The distance between Kathmandu (Tribhuvan International Airport) and Ko Samui (Samui Airport) is 1574 miles / 2533 kilometers / 1368 nautical miles.

Tribhuvan International Airport – Samui Airport

Distance arrow
1574
Miles
Distance arrow
2533
Kilometers
Distance arrow
1368
Nautical miles
Flight time duration
3 h 28 min
Time Difference
1 h 15 min
CO2 emission
184 kg

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Distance from Kathmandu to Ko Samui

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

Vincenty's formula (applied above)
  • 1573.794 miles
  • 2532.775 kilometers
  • 1367.589 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
  • 1577.413 miles
  • 2538.599 kilometers
  • 1370.734 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 Kathmandu to Ko Samui?

The estimated flight time from Tribhuvan International Airport to Samui Airport is 3 hours and 28 minutes.

Flight carbon footprint between Tribhuvan International Airport (KTM) and Samui Airport (USM)

On average, flying from Kathmandu to Ko Samui generates about 184 kg of CO2 per passenger, and 184 kilograms equals 406 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Kathmandu to Ko Samui

See the map of the shortest flight path between Tribhuvan International Airport (KTM) and Samui Airport (USM).

Airport information

Origin Tribhuvan International Airport
City: Kathmandu
Country: Nepal Flag of Nepal
IATA Code: KTM
ICAO Code: VNKT
Coordinates: 27°41′47″N, 85°21′32″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