How often are flights from Ulaanbaatar to Busan delayed?

About 12% of weekly flights between Ulaanbaatar and Busan have experienced delays in the past year, with the average delay time being 112 minutes.

What is the most punctual flight time for Ulaanbaatar to Busan flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Thursday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Ulaanbaatar to Busan flights?

Over the past year, Jeju Air have had the lowest number of delays on this route, with just 4% of flights being delayed.

How long is the flight from Ulaanbaatar to Busan?

Jeju Air can get you from Ulaanbaatar to Busan in just under 3h 30m. Your travel time will be generally consistent. There are 1425 mi between Ulaanbaatar and Busan. Most flights are nonstop.

Weekly flight availability from Ulaanbaatar to Busan

The most flights from UBN to PUS are scheduled on a Saturday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

In terms of precipitation, rainfall in Busan ranges from 24.0 - 259.0 inches per month. July is typically the wettest month, when rainfall can reach 259.0 mm. December is typically the driest time to visit Busan when rainfall is around 24.0 mm.

If weather is an important factor for your trip to Busan, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 26.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What are the most reliable airlines from Ulaanbaatar to Busan?

The top 3 most reliable airlines when flying from Ulaanbaatar to Busan are Jeju Air (91%), Jin Air (83%) and Air Busan (77%).

Can I find deals for flights from Ulaanbaatar to Busan that include hotel bookings?

Yes. In addition to deals on Ulaanbaatar to Busan flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Ulaanbaatar to Busan?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ulaanbaatar to Busan.

Can I find deals for business class flights from Ulaanbaatar to Busan?

Yes. Cheapflights offers flight deals from Ulaanbaatar to Busan by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£154+ Cheap Flights from Ulaanbaatar to Busan

Cheap flight deals from Ulaanbaatar to Busan

Enter your travel dates to find the best prices.

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Cheapest flights from Ulaanbaatar to Busan
Explore the most affordable flight options available from Ulaanbaatar to Busan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 September 2026.

Thu 17/902:20 -

Nonstop3h 30m

Sun 27/921:35 -

Nonstop4h 00m

Deal found 3/9£226

Sat 19/902:20 -

Nonstop3h 30m

Sun 4/1021:35 -

Nonstop4h 00m

Deal found 5/9£235

Wed 23/902:20 -

Nonstop3h 30m

Sun 4/1021:35 -

Nonstop4h 00m

Deal found 5/9£237

Sat 19/902:20 -

Nonstop3h 30m

Sun 27/921:35 -

Nonstop4h 00m

Deal found 6/9£241

Wed 23/902:20 -

Nonstop3h 30m

Sun 27/921:35 -

Nonstop4h 00m

Deal found 6/9£243

Wed 16/902:20 -

Nonstop3h 30m

Sun 27/921:35 -

Nonstop4h 00m

Deal found 3/9£248

Sat 12/902:20 -

Nonstop3h 30m

Sun 27/921:35 -

Nonstop4h 00m

Deal found 6/9£255

Sat 12/902:20 -

Nonstop3h 30m

Wed 16/921:35 -

Nonstop4h 00m

Deal found 3/9£266

Thu 10/902:20 -

Nonstop3h 30m

Wed 16/921:35 -

Nonstop4h 00m

Deal found 3/9£294

Sun 20/902:20 -

Nonstop3h 30m

Sat 26/921:35 -

Nonstop4h 00m

Deal found 3/9£297

Thu 17/902:20 -

Nonstop3h 30m

Sat 19/921:35 -

Nonstop4h 00m

Deal found 3/9£315

Find flight deals from Ulaanbaatar to Busan

Round-trip from	£226
One-way from	£154
Popular in	March
Cheapest in	October
Average price	£158

Jeju Air
17/9-27/9
Nonstop
7h 30m total
Ulaanbaatar to Busan

Search Deals

Jeju Air
19/9-31/12
Nonstop
3h 30m total
Ulaanbaatar to Busan

Search Deals

Highest demand for flights based on searches. 34% potential increase in price (£158 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 16% potential price decrease (£44 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

UlaanbaatarBusan

UBN Ulaanbaatar Chinggis Khaan - PUS Busan Gimhae

UBNPUS

Ulaanbaatar Chinggis Khaan

Sat 19/9

02:20-06:50

Nonstop3h 30m

Busan Gimhae

Wed 31/12

00:00-22:00

Nonstop0h 00m

£154

UlaanbaatarBusan

UBN Ulaanbaatar Chinggis Khaan - PUS Busan Gimhae

UBNPUS

Ulaanbaatar Chinggis Khaan

Thu 24/9

02:20-06:50

Nonstop3h 30m

Busan Gimhae

Wed 31/12

00:00-22:00

Nonstop0h 00m

£156

UlaanbaatarBusan

UBN Ulaanbaatar Chinggis Khaan - PUS Busan Gimhae

UBNPUS

Ulaanbaatar Chinggis Khaan

Wed 23/9

02:20-06:50

Nonstop3h 30m

Busan Gimhae

Wed 31/12

00:00-22:00

Nonstop0h 00m

£156

UlaanbaatarBusan

UBN Ulaanbaatar Chinggis Khaan - PUS Busan Gimhae

UBNPUS

Ulaanbaatar Chinggis Khaan

Thu 17/9

02:20-06:50

Nonstop3h 30m

Busan Gimhae

Wed 31/12

00:00-22:00

Nonstop0h 00m

£168

UlaanbaatarBusan

UBN Ulaanbaatar Chinggis Khaan - PUS Busan Gimhae

UBNPUS

Ulaanbaatar Chinggis Khaan

Sat 12/9

02:20-06:50

Nonstop3h 30m

Busan Gimhae

Wed 31/12

00:00-22:00

Nonstop0h 00m

£168

UlaanbaatarBusan

UBN Ulaanbaatar Chinggis Khaan - PUS Busan Gimhae

UBNPUS

Ulaanbaatar Chinggis Khaan

Thu 17/9

02:20-06:50

Nonstop3h 30m

Busan Gimhae

Sun 27/9

21:35-00:35

Nonstop4h 00m

£226

UlaanbaatarBusan

UBN Ulaanbaatar Chinggis Khaan - PUS Busan Gimhae

UBNPUS

Ulaanbaatar Chinggis Khaan

Sat 19/9

02:20-06:50

Nonstop3h 30m

Busan Gimhae

Sun 4/10

21:35-00:35

Nonstop4h 00m

£235

UlaanbaatarBusan

UBN Ulaanbaatar Chinggis Khaan - PUS Busan Gimhae

UBNPUS

Ulaanbaatar Chinggis Khaan

Wed 23/9

02:20-06:50

Nonstop3h 30m

Busan Gimhae

Sun 4/10

21:35-00:35

Nonstop4h 00m

£237

UlaanbaatarBusan

UBN Ulaanbaatar Chinggis Khaan - PUS Busan Gimhae

UBNPUS

Ulaanbaatar Chinggis Khaan

Sat 19/9

02:20-06:50

Nonstop3h 30m

Busan Gimhae

Sun 27/9

21:35-00:35

Nonstop4h 00m

£241

UlaanbaatarBusan

UBN Ulaanbaatar Chinggis Khaan - PUS Busan Gimhae

UBNPUS

Ulaanbaatar Chinggis Khaan

Wed 23/9

02:20-06:50

Nonstop3h 30m

Busan Gimhae

Sun 27/9

21:35-00:35

Nonstop4h 00m

£243

Flights are sorted by cheapest return flights first.

Deals found on 4/9

Showing 1-10 of 12 resultsSorted by cheapest first

Best time to book a flight from Ulaanbaatar to Busan

Have a flexible travel schedule? Discover the best time to fly to Busan from Ulaanbaatar with our price prediction graph.

UBN-PUS

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ulaanbaatar to Busan

Prices

Airlines

Delays

What is the cheapest time of day to fly from UBN to PUS?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ulaanbaatar to Busan as you normally would.

Related info for your journey

How long is the flight from Ulaanbaatar to Busan?
Jeju Air can get you from Ulaanbaatar to Busan in just under 3h 30m. Your travel time will be generally consistent. There are 1425 mi between Ulaanbaatar and Busan. Most flights are nonstop.
What are the most reliable airlines from Ulaanbaatar to Busan?
The top 3 most reliable airlines when flying from Ulaanbaatar to Busan are Jeju Air (91%), Jin Air (83%) and Air Busan (77%).
Can I find deals for flights from Ulaanbaatar to Busan that include hotel bookings?
Yes. In addition to deals on Ulaanbaatar to Busan flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Ulaanbaatar to Busan?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ulaanbaatar to Busan.
Can I find deals for business class flights from Ulaanbaatar to Busan?
Yes. Cheapflights offers flight deals from Ulaanbaatar to Busan by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Busan from Ulaanbaatar.

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Can Cheapflights notify me if prices for flights from Ulaanbaatar to Busan become cheaper?

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Cheap flights from Ulaanbaatar to Busan from £154

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ulaanbaatar to Busan

Cheapest flights from Ulaanbaatar to BusanExplore the most affordable flight options available from Ulaanbaatar to Busan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 September 2026.

Explore the most affordable flight options available from Ulaanbaatar to Busan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 September 2026.

Best flights from Ulaanbaatar to BusanDiscover carefully curated flight deals from Ulaanbaatar to Busan that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 7 September 2026.

Discover carefully curated flight deals from Ulaanbaatar to Busan that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 7 September 2026.

Direct flights from Ulaanbaatar to BusanExplore direct flight options from Ulaanbaatar to Busan based on user searches, and compare prices and availability for your desired travel dates. Data last updated 7 September 2026.

Explore direct flight options from Ulaanbaatar to Busan based on user searches, and compare prices and availability for your desired travel dates. Data last updated 7 September 2026.

Last-minute flights from Ulaanbaatar to BusanDiscover last-minute flight deals from Ulaanbaatar to Busan. Data last updated 7 September 2026 and is based on user searches.

Discover last-minute flight deals from Ulaanbaatar to Busan. Data last updated 7 September 2026 and is based on user searches.

One-way flights from Ulaanbaatar to BusanSearch for one-way flight options from Ulaanbaatar to Busan. Find affordable one-way fares based on user searches. Data last updated 7 September 2026.

Search for one-way flight options from Ulaanbaatar to Busan. Find affordable one-way fares based on user searches. Data last updated 7 September 2026.

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Best time to book a flight from Ulaanbaatar to Busan

Have a flexible travel schedule? Discover the best time to fly to Busan from Ulaanbaatar with our price prediction graph.

Cheapflights Insights

What is the cheapest time of day to fly from UBN to PUS?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ulaanbaatar to Busan as you normally would.

Weekly flight availability from Ulaanbaatar to Busan

The most flights from UBN to PUS are scheduled on a Saturday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

How often are flights from Ulaanbaatar to Busan delayed?

About 12% of weekly flights between Ulaanbaatar and Busan have experienced delays in the past year, with the average delay time being 112 minutes.

What is the most punctual flight time for Ulaanbaatar to Busan flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Thursday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Ulaanbaatar to Busan flights?

Over the past year, Jeju Air have had the lowest number of delays on this route, with just 4% of flights being delayed.

Related info for your journey

How long is the flight from Ulaanbaatar to Busan?

What are the most reliable airlines from Ulaanbaatar to Busan?

Can I find deals for flights from Ulaanbaatar to Busan that include hotel bookings?

How can I find direct flights from Ulaanbaatar to Busan?

Can I find deals for business class flights from Ulaanbaatar to Busan?

Browse thousands of different options on Cheapflights for your next trip

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Cheapest flights from Ulaanbaatar to Busan
Explore the most affordable flight options available from Ulaanbaatar to Busan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 September 2026.

Best flights from Ulaanbaatar to Busan
Discover carefully curated flight deals from Ulaanbaatar to Busan that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 7 September 2026.

Direct flights from Ulaanbaatar to Busan
Explore direct flight options from Ulaanbaatar to Busan based on user searches, and compare prices and availability for your desired travel dates. Data last updated 7 September 2026.

Last-minute flights from Ulaanbaatar to Busan
Discover last-minute flight deals from Ulaanbaatar to Busan. Data last updated 7 September 2026 and is based on user searches.

One-way flights from Ulaanbaatar to Busan
Search for one-way flight options from Ulaanbaatar to Busan. Find affordable one-way fares based on user searches. Data last updated 7 September 2026.