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Flights between Hong Kong (HKG) and Ulaanbaatar (ULN)

Hong Kong International Airport, Hong Kong ↔ Buyant-Ukhaa International Airport, Mongolia

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

Confirming who flies HKG–ULN

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

Distance
2,910 km
1,808 miles
Est. flight time
4h 8m
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 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 Mongolia

Jan
-15°
-10/-20
1mm
Feb
-10°
-5/-15
2mm
Mar
-1°
4/-6
3mm
Apr
9°
14/4
6mm
May
17°
22/12
11mm
Jun
22°
27/17
35mm
Jul
23°
28/18
65mm
Aug
21°
26/16
60mm
Sep
14°
19/9
25mm
Oct
5°
10/0
6mm
Nov
-7°
-2/-12
3mm
Dec
-14°
-9/-19
2mm

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

Travel advisories

Mongolia: Normal precautions (UK FCDO) ↗

Common questions

How far is Hong Kong from Ulaanbaatar?

Hong Kong (HKG) and Ulaanbaatar (ULN) are around 2,910 km (1,808 miles) apart — an estimated 4h 8m by air. Distances and flight times are great-circle estimates.

What is the time difference between Hong Kong and Ulaanbaatar?

Both airports keep the same time — no time difference.

When is it warmest in Mongolia?

Across Mongolia, the warmest month on average is July, with mean temperatures around 23°C. These are country-level monthly climate normals, not airport-specific.

Is there a travel advisory for Mongolia?

The UK FCDO currently rates Mongolia as Normal precautions. Check the official source before you travel.

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