Hong Kong to Ulaanbaatar (Sergelen) (HKG–UBN) — Airlines, Schedules & Connections

HKG Airport Page →
1,794 mi airlines 7/wk
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Flight Schedule 2 flights Verified 1h ago
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  Flight Airline AC Dep Arr Dur OTP Sched  
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→
CX6200
CX Cathay Pacific
73G
12:25 PM
HKT TT1
5:05 PM
+08
4h 40m
—
M T W T F S S
Prices
✓
←
CX6201
CX Cathay Pacific
73H
6:45 AM
+08
11:25 AM
HKT
4h 40m
—
M T W T F S S
Prices

No flights match your filters.

No nonstop flights on this route. connecting options below.

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Hong Kong to Ulaanbaatar (Sergelen)
1 carrier, 7 flights/week nonstop.
1 Airlines 7 Flights/wk 1,794 mi 4h 40m nonstop 1 1-stop hubs

HKG–UBN is served by 1 airline with nonstop service. Cathay Pacific leads the route. The flight covers 1,794 miles in approximately 4h 40m. Beyond nonstop, 1 hub offers 1-stop connections.

Also explore HKG Routes UBN Routes HKG Live Flights UBN Live Flights
Carriers on this route

Airline Landscape

All carriers operating nonstop HKG–UBN service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
CX Cathay Pacific 7 73G 4h40 – Oneworld –
Aircraft on this route
73G Boeing 737-700 – CX
Alliance coverage
Oneworld: CX (7 flights/wk, 100%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.
Schedule

Weekly Schedule Pattern

Nonstop flight frequency by day of week, HKG to UBN direction.
Mon
1
flight
Tue
1
flight
Wed
1
flight
Thu
1
flight
Fri
1
flight
Sat
1
flight
Sun
1
flight
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
1
Nonstop flights
7
Outbound / wk
7
Return / wk
Connections

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for HKG to UBN.
1-STOP
One-Stop Connections
1
Hubs
~24h
Fastest
~24h
Longest
ICN ~24h 15m
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
96
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.
Know before you go

Travel Essentials

Practical planning for this route.
Time Difference
0h
Ulaanbaatar (Sergelen) is 0 hours the same as Hong Kong.
HKG: HKT · UBN: +08

When it's 6:00 PM in Hong Kong, it's 6:00 PM in Ulaanbaatar (Sergelen).
Distance & Flight Time
1,794 mi / 2,887 km
Nonstop flight time is approximately 4h 40m.
Visa & Entry

Hong Kong SAR passport holders have historically entered Mongolia visa-free for stays of up to 14 days. Passport must be valid for at least 6 months beyond the date of entry. Check current status with the Mongolian embassy before travel, as Mongolia's visa exemption policies have been updated recently.

For longer stays, a tourist visa must be obtained in advance. Registration with the Immigration Agency is required for stays over 30 days.

Verify entry requirements with official sources before travel.
Getting to HKG

Airport Express runs from Hong Kong Station (Central) to the airport in 24 minutes; from Kowloon, 21 minutes. Trains depart every 10 minutes from 5:54am to 1:15am (HK$115 from Central). Hong Kong Station and Kowloon Station offer in-town check-in up to one day before departure.Taxis from Kowloon run around HK$300–350 via the Tsing Ma Bridge; from Hong Kong Island, expect HK$400+. Ferries serve Macau and Pearl River Delta cities. Buses are available but slow. The airport is on Lantau Island, 34km from Central.

Facts

HKG–UBN Quick Facts

Key statistics for the Hong Kong to Ulaanbaatar (Sergelen) route.
Route details
Distance1,794 mi / 2,887 km
Flight time4h 40m
Time difference0 hours
Airlines (nonstop)1
Weekly flights7 out / 7 return
1-stop connections1 hubs
Origin: HKG
Full nameHong Kong International Airport
IATA / ICAOHKG / VHHH
TimezoneAsia/Hong_Kong
Passengers/yr53.1M
Elevation28 ft / 9 m
Destination: UBN
Full nameUlaanbaatar Chinggis Khaan International Airport
IATA / ICAOUBN / ZMCK
TimezoneAsia/Ulaanbaatar
Elevation4,482 ft / 1,366 m
FAQ

Frequently Asked Questions

Common questions about HKG to UBN flights.
Nonstop flights from Hong Kong International Airport to Ulaanbaatar Chinggis Khaan International Airport take approximately 4h 40m. The route covers 1,794 miles.
1 airline operates nonstop service: Cathay Pacific.
There are approximately 7 nonstop flights per week from HKG to UBN. The return direction has about 7 weekly flights.
Yes, 1-stop connections are available through ICN. These options provide additional schedule flexibility.
Yes, return flights from UBN to HKG are available. Use the direction toggle at the top to view the return schedule.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.

Flights from HKG to UBN

Hong Kong International Airport (HKG) and Ulaanbaatar Chinggis Khaan International Airport (UBN) are connected by nonstop service from Cathay Pacific. With 7 weekly departures, this is a regularly served route.

HKG to UBN Flight Duration and Schedule

Nonstop flight time from HKG to UBN ranges from 4 hours 40 minutes. The route covers a distance of 1,794 miles (2,887 km). There are approximately 7 weekly flights outbound and 7 return, totaling 14 flights per week in both directions.

Connecting Options and Alternatives

1 one-stop connections are available, with the fastest taking approximately 24 hours via ICN. Two-stop connections are also available via intermediate hubs.