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Flights between Sepang (KUL) and Na Thon (Ko Samui Island) (USM)

Kuala Lumpur International Airport, Malaysia ↔ Samui International Airport, Thailand

A direct route between Sepang and Na Thon (Ko Samui Island) appears in the OpenFlights route network.

Confirming who flies KUL–USM

We're verifying which airlines currently operate KUL–USM. Current operators will appear here as our data refreshes.

Distance
778 km
483 miles
Est. flight time
1h 28m
great-circle estimate
Time difference
~1h
varies with DST
View this route on the live map →Search fares on Skyscanner ↗

Climate

Typical monthly temperatures in Malaysia

Jan
32°
37/27
180mm
Feb
33°
38/28
130mm
Mar
33°
38/28
150mm
Apr
33°
38/28
200mm
May
33°
38/28
200mm
Jun
32°
37/27
150mm
Jul
32°
37/27
150mm
Aug
32°
37/27
170mm
Sep
32°
37/27
200mm
Oct
32°
37/27
250mm
Nov
32°
37/27
280mm
Dec
32°
37/27
260mm

Mean °C (high/low below), avg. rainfall mm · country-level monthly normals, not airport-specific.

Typical monthly temperatures in Thailand

Jan
32°
37/27
10mm
Feb
33°
38/28
20mm
Mar
34°
39/29
30mm
Apr
35°
40/30
60mm
May
34°
39/29
180mm
Jun
33°
38/28
200mm
Jul
32°
37/27
200mm
Aug
32°
37/27
250mm
Sep
32°
37/27
300mm
Oct
31°
36/26
200mm
Nov
31°
36/26
50mm
Dec
31°
36/26
10mm

Mean °C (high/low below), avg. rainfall mm · country-level monthly normals, not airport-specific.

Travel advisories

Thailand: Caution — some areas (UK FCDO) ↗

Common questions

How far is Sepang from Na Thon (Ko Samui Island)?

Sepang (KUL) and Na Thon (Ko Samui Island) (USM) are around 778 km (483 miles) apart — an estimated 1h 28m by air. Distances and flight times are great-circle estimates.

What is the time difference between Sepang and Na Thon (Ko Samui Island)?

Time difference ~ 1 hour (varies with daylight-saving).

When is it warmest in Thailand?

Across Thailand, the warmest month on average is April, with mean temperatures around 35°C. These are country-level monthly climate normals, not airport-specific.

Is there a travel advisory for Thailand?

The UK FCDO currently rates Thailand as Caution — some areas. Check the official source before you travel.

Distances and flight times are great-circle estimates, not booked block times.