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Flights between Hong Kong (HKG) and Siem-reap (REP)

Hong Kong International Airport, Hong Kong ↔ Siem Reap International Airport, Cambodia

A direct route between Hong Kong and Siem-reap 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This reflects historical scheduled service and may be out of date — it is not a live timetable.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:

KA
Distance
1,456 km
905 miles
Est. flight time
2h 19m
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 Cambodia

Jan
31°
36/26
10mm
Feb
32°
37/27
10mm
Mar
34°
39/29
30mm
Apr
35°
40/30
75mm
May
34°
39/29
160mm
Jun
33°
38/28
165mm
Jul
32°
37/27
175mm
Aug
32°
37/27
175mm
Sep
31°
36/26
250mm
Oct
31°
36/26
250mm
Nov
30°
35/25
130mm
Dec
30°
35/25
30mm

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

Travel advisories

Cambodia: Caution — some areas (UK FCDO) ↗

Common questions

How far is Hong Kong from Siem-reap?

Hong Kong (HKG) and Siem-reap (REP) are around 1,456 km (905 miles) apart — an estimated 2h 19m by air. Distances and flight times are great-circle estimates.

Which airlines have operated the HKG–REP route?

Airlines recorded operating this route in the OpenFlights network include KA. This reflects historical scheduled service and may be out of date.

What is the time difference between Hong Kong and Siem-reap?

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

When is it warmest in Cambodia?

Across Cambodia, 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 Cambodia?

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

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