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Flights between Hong Kong (HKG) and Ko Samui (USM)

Hong Kong International Airport, Hong Kong ↔ Samui Airport, Thailand

A direct route between Hong Kong and Ko Samui appears in the OpenFlights route network.

This reflects historical scheduled service and may be out of date — it is not a live timetable.

Airlines that have operated this route include:

Cathay Pacific (CX)Bangkok Airways (PG)
Distance
2,048 km
1,273 miles
Est. flight time
3h 4m
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 Hong Kong

Jan
18°
23/13
25mm
Feb
19°
24/14
50mm
Mar
22°
27/17
80mm
Apr
25°
30/20
175mm
May
29°
34/24
305mm
Jun
30°
35/25
455mm
Jul
31°
36/26
380mm
Aug
31°
36/26
365mm
Sep
30°
35/25
250mm
Oct
28°
33/23
110mm
Nov
24°
29/19
40mm
Dec
20°
25/15
25mm

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 Hong Kong from Ko Samui?

Hong Kong (HKG) and Ko Samui (USM) are around 2,048 km (1,273 miles) apart — an estimated 3h 4m by air. Distances and flight times are great-circle estimates.

Which airlines have operated the HKG–USM route?

Airlines recorded operating this route in the OpenFlights network include Cathay Pacific, Bangkok Airways. This reflects historical scheduled service and may be out of date.

What is the time difference between Hong Kong and Ko Samui?

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.