Cheap Flights from Hong Kong (HKG) to Ulaanbaatar (UBN) from HK$1,838~

View HK$1,838 flight on Sun, 28 Sept 2025Opens in a new window

Popular airlines from Hong Kong International Airport (HKG) to Ulaanbaatar (UBN-Chinggis Khaan Intl.)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 35% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Find Cheap Flights from Hong Kong (HKG) to Ulaanbaatar (UBN)

Prices were available within the past 7 days and start at HK$1,838 for one-way flights and HK$3,369 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

MIAT Mongolian Airlines
Mon, 3 Nov - Fri, 21 Nov
HKG
Hong Kong SAR
UBN
Ulaanbaatar
HK$3,369 Return, found 2 hours ago
HK$3,369
Return
found 2 hours ago
Select MIAT Mongolian Airlines flight, departing Mon, 3 Nov from Hong Kong SAR to Ulaanbaatar, returning Fri, 21 Nov, priced at HK$3,369 found 2 hours ago
MIAT Mongolian Airlines
Tue, 30 Sept - Thu, 2 Oct
HKG
Hong Kong SAR
UBN
Ulaanbaatar
HK$3,437 Return, found 20 hours ago
HK$3,437
Return
found 20 hours ago
Select MIAT Mongolian Airlines flight, departing Tue, 30 Sept from Hong Kong SAR to Ulaanbaatar, returning Thu, 2 Oct, priced at HK$3,437 found 20 hours ago
MIAT Mongolian Airlines
Thu, 1 Jan - Thu, 8 Jan
HKG
Hong Kong SAR
UBN
Ulaanbaatar
HK$3,471 Return, found 1 day ago
HK$3,471
Return
found 1 day ago
Select MIAT Mongolian Airlines flight, departing Thu, 1 Jan from Hong Kong SAR to Ulaanbaatar, returning Thu, 8 Jan, priced at HK$3,471 found 1 day ago
MIAT Mongolian Airlines
Sat, 4 Apr - Fri, 24 Apr
HKG
Hong Kong SAR
UBN
Ulaanbaatar
HK$3,487 Return, just found
HK$3,487
Return
just found
Select MIAT Mongolian Airlines flight, departing Sat, 4 Apr from Hong Kong SAR to Ulaanbaatar, returning Fri, 24 Apr, priced at HK$3,487 just found
MIAT Mongolian Airlines
Fri, 31 Oct - Thu, 6 Nov
HKG
Hong Kong SAR
UBN
Ulaanbaatar
HK$3,504 Return, found 2 hours ago
HK$3,504
Return
found 2 hours ago
Select MIAT Mongolian Airlines flight, departing Fri, 31 Oct from Hong Kong SAR to Ulaanbaatar, returning Thu, 6 Nov, priced at HK$3,504 found 2 hours ago
MIAT Mongolian Airlines
Fri, 1 May - Tue, 5 May
HKG
Hong Kong SAR
UBN
Ulaanbaatar
HK$3,535 Return, found 2 days ago
HK$3,535
Return
found 2 days ago
Select MIAT Mongolian Airlines flight, departing Fri, 1 May from Hong Kong SAR to Ulaanbaatar, returning Tue, 5 May, priced at HK$3,535 found 2 days ago
Air China
Mon, 29 Sept - Sat, 4 Oct
HKG
Hong Kong SAR
UBN
Ulaanbaatar
HK$3,667 Return, just found
HK$3,667
Return
just found
Select Air China flight, departing Mon, 29 Sept from Hong Kong SAR to Ulaanbaatar, returning Sat, 4 Oct, priced at HK$3,667 just found
Asiana Airlines
Wed, 5 Nov - Tue, 18 Nov
HKG
Hong Kong SAR
UBN
Ulaanbaatar
HK$4,595 Return, found 1 day ago
HK$4,595
Return
found 1 day ago
Select Asiana Airlines flight, departing Wed, 5 Nov from Hong Kong SAR to Ulaanbaatar, returning Tue, 18 Nov, priced at HK$4,595 found 1 day ago
Cathay Pacific
Sat, 11 Oct - Wed, 15 Oct
HKG
Hong Kong SAR
UBN
Ulaanbaatar
HK$4,643 Return, found 4 hours ago
HK$4,643
Return
found 4 hours ago
Select Cathay Pacific flight, departing Sat, 11 Oct from Hong Kong SAR to Ulaanbaatar, returning Wed, 15 Oct, priced at HK$4,643 found 4 hours ago
Korean Air
Fri, 31 Oct - Thu, 6 Nov
HKG
Hong Kong SAR
UBN
Ulaanbaatar
HK$5,119 Return, found 2 hours ago
HK$5,119
Return
found 2 hours ago
Select Korean Air flight, departing Fri, 31 Oct from Hong Kong SAR to Ulaanbaatar, returning Thu, 6 Nov, priced at HK$5,119 found 2 hours ago

Find the cheapest month to fly from Chek Lap Kok (HKG) to Ulaanbaatar (UBN)

June is typically the cheapest month to fly

From HK$2,963 - HK$4,240 per traveller.

Travel information

Travel information

Origin airport
Hong Kong Intl.
Destination airport
Chinggis Khaan Intl.
Airlines serving
Air China, Asiana Airlines, Cathay Pacific, Korean Air, MIAT Mongolian Airlines
Return price
HK$3,369
Distance
2870 km
Average flight time
4 hours 40 mins

Book with confidence

Book with confidence

Flights from Chek Lap Kok to Sergelen

Book cheap flights from Chek Lap Kok (HKG) to Sergelen (UBN) on Expedia.com.hk. Find the best flight deals to destinations around the world for your next leisure or business travel on Expedia.com.hk.

Search for flights from Chek Lap Kok (HKG) to Sergelen (UBN) to find great flight deals suitable to your travel date and time. Expedia.com.hk flight booking search engine is simple to use and looking for cheap flights is as easy as a click of a mouse or on your mobile devices.

Be assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Chek Lap Kok (HKG) to Sergelen (UBN) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

Save more when combine your Sergelen flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in Sergelen and things to do in Sergelen for your perfect vacation with Expedia Thing to Do.

If you would like to book flights to Sergelen more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Sergelen is HK$1,838 now!

 

Flights from Chek Lap Kok to Sergelen

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to Expedia members.