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Flights between Hanoi (HAN) and Siem-reap (REP)

Noi Bai International Airport, Vietnam ↔ Siem Reap International Airport, Cambodia

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This reflects historical scheduled service and may be out of date — it is not a live timetable.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

K6Vietnam Airlines (VN)
Distance
894 km
556 miles
Est. flight time
1h 37m
great-circle estimate
Time difference
None
varies with DST
View this route on the live map →Search fares on Skyscanner ↗

Climate

Typical monthly temperatures in Vietnam

Jan
25°
30/20
15mm
Feb
26°
31/21
20mm
Mar
28°
33/23
30mm
Apr
30°
35/25
50mm
May
33°
38/28
130mm
Jun
33°
38/28
180mm
Jul
33°
38/28
200mm
Aug
32°
37/27
250mm
Sep
31°
36/26
290mm
Oct
29°
34/24
290mm
Nov
27°
32/22
80mm
Dec
25°
30/20
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 Hanoi from Siem-reap?

Hanoi (HAN) and Siem-reap (REP) are around 894 km (556 miles) apart — an estimated 1h 37m by air. Distances and flight times are great-circle estimates.

Which airlines have operated the HAN–REP route?

Airlines recorded operating this route in the OpenFlights network include K6, Vietnam Airlines. This reflects historical scheduled service and may be out of date.

What is the time difference between Hanoi and Siem-reap?

Both airports keep the same time — no time difference.

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.