The cheapest times to fly from ULN to PUS are

  • August 13th to February 18th (except the week of September 10th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from ULN to PUS is early to mid October. Prices can be as high as $2524 for Monday flights during early to mid July, or as low as $400 for Sunday flights around early to mid October.


When to Fly to Busan

Flying from Ulan Bator (ULN) to Busan (PUS) will usually cost between $412 to $1990 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early to mid October with an average ticket price of $526. Due to high demand the most expensive time to fly is early to mid July, with an average price of $1226. Planning your trip to low-cost times can easily save you $700 on economy flights and even more on first-class flights. Generally, any price below $664 can be considered a good price for a round-trip ULN to PUS flight.

See below for a graph of average weekly prices for the ULN to PUS route. All prices are for round-trip tickets in USD.

ULN to PUS Flight Prices

Compared to other flights, the ULN to PUS flight is cheaper than the average and costs much less than the average flight leaving from Ulaanbaatar. The average price per mile (for a direct flight) is $0.29, which is below average.


Flight Prices by Day of the Week

Sunday is usually the cheapest day to fly to PUS, and Friday the cheapest day to fly back into ULN. Mondays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $669 (54%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Sunday and returning a week later will cost an average of $525. Return trip prices are from the PUS to ULN flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from ULN to PUS can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 3 hour 34 minutes may be realistic.


Flight Hacking ULN to PUS

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from ULN to PUS — but Champion Traveler does!

Hack #1: Beijing (ULN > PEK > PUS)

  • Price for both tickets: $567
  • Average savings: $97 (14.61%)

See ULN to flights


Flight Questions Answered

Still have questions about flying from ULN to PUS? We’ve got answers.

Which airlines fly this route?

You can find 9 major airlines flying this route most often: Aero Mongolia, Air Busan, Air China, Asiana, Cathay Pacific, China Eastern, Korean Air, MIAT, Tianjin Airlines, and potentially more during busy seasons.

How far away is it from Gimhae International Airport to Chinggis Khaan International Airport?

The distance between the two airports is roughly 1434 miles or 2308 kilometers.

How long does it take to fly from ULN to PUS?

The real-world flight time for a nonstop ULN to PUS flight is about 3 hour 34 minutes.

How many flights go between Ulan Bator and Busan?

It depends on the day of the week and the date, but a typical day might have around 28 available flights from ULN to PUS.


Airport Location Info


Departing Airport

Origination code ULN
Origination airport name Chinggis Khaan International Airport
City Ulan Bator
Country Mongolia
Latitude 47.8
Longitude 106.8

Return Airport

Destination code PUS
Destination airport name Gimhae International Airport
City Busan
Country South Korea
Latitude 35.2
Longitude 128.9


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.