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Flights from Ulaanbaatar to Seoul

Airlines operating flights from Ulaanbaatar to Seoul

Choose from 5 airlines flying from Ulaanbaatar to Seoul, including Jeju Air, Miat Mongolian Airlines and Korean Air. Jeju Air currently offers the cheapest ticket on this route.
Jeju Air logo Jeju Air
Miat Mongolian Airlines logo Miat Mongolian Airlines
Korean Air logo Korean Air
Asiana Airlines logo Asiana Airlines
T'Way Air logo T'Way Air
Airlines are determined based on actual purchased flight tickets from Ulaanbaatar to Seoul according to previous 12 months data from Trip.com.

Find the cheapest direct flight options from Ulaanbaatar to Seoul over the next three months. Book one-way tickets from £93 and round-trip tickets from £165.

Displayed flight fares from Ulaanbaatar to Seoul are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flight details for Ulaanbaatar to Seoul

The distance between Ulaanbaatar and Seoul is 1,999.25km. It takes around 3 hours 12 minutes on average to fly from Ulaanbaatar to Seoul. Based on Trip.com's data, travel demand peaks in August. The off-season for travel is September.

Cheapest one-way flight price£93
Cheapest return ticket price£165
Off-season travel monthSeptember
Peak season for travelAugust
Flight distance1,999.25km
Average flight time3 hours 12 minutes
Popular airlineJeju Air
Flight statistics for the Ulaanbaatar–Seoul route are based on aggregated booking data from Trip.com over the past 12 months.

Trip.com price insights on flights from Ulaanbaatar to Seoul

What is the cheapest month for one-way flights from Ulaanbaatar to Seoul?

The average one way ticket price paid by Trip.com users from Ulaanbaatar to Seoul in each month over the past 12 months.

Based on Trip.com data, the cheapest month to fly from Ulaanbaatar to Seoul is February, with an average price of £98. The most expensive month is usually August, with average prices reaching £153.

£153
£126
£98
£71
    Cheapest
  • £152
    Mar
  • £102
    Apr
  • £113
    May
  • £116
    Jun
  • £113
    Jul
  • £153
    Aug
  • £109
    Sep
  • £122
    Oct
  • £105
    Nov
  • £114
    Dec
  • £104
    Jan
  • £98
    Feb

What is the cheapest month for return flights from Ulaanbaatar to Seoul?

Average price of return flights from Ulaanbaatar to Seoul purchased by Trip.com users by month over the past 12 months

Based on Trip.com's historical data, September is often the cheapest month for fly from Ulaanbaatar to Seoul, with an average price of £295. August is usually the most expensive period, with prices averaging as high as £358.

£358
£327
£295
£264
    Cheapest
  • £318
    Mar
  • £296
    Apr
  • £304
    May
  • £327
    Jun
  • £332
    Jul
  • £358
    Aug
  • £295
    Sep
  • £312
    Oct
  • £302
    Nov
  • £326
    Dec
  • £332
    Jan
  • £310
    Feb

Which day of the week is cheapest to fly from Ulaanbaatar to Seoul?

Data is based on the past 12 months and shows the average weekly airfare from Ulaanbaatar to Seoul on different days of the week according to Trip.com.

Based on Trip.com data from the past 12 months, the cheapest day to fly from Ulaanbaatar to Seoul is Thursday. The average fare on this day is usually lower than on other days. Try to avoid flying on Friday as fares are usually the highest.

£199
£177
£154
£132
    Cheapest
  • £185
    Mon
  • £157
    Tue
  • £195
    Wed
  • £154
    Thu
  • £199
    Fri
  • £192
    Sat
  • £177
    Sun

During the St Patrick's Day, which day is cheapest to fly from Ulaanbaatar to Seoul?

Data is based on the lowest one-way price from Ulaanbaatar to Seoul during St Patrick's Day in the Trip.com database over the past three days.

During the St Patrick's Day, flights from Ulaanbaatar to Seoul are cheapest on Mar 17, with the lowest price of £120.

£978
£549
£120
0
    Cheapest
  • £162
    Mar 13
  • £123
    Mar 14
  • £177
    Mar 15
  • £126
    Mar 16
  • £120
    Mar 17
  • £142
    Mar 18
  • £978
    Mar 19

Flight FAQs

  • Which airlines offer the cheapest flights from Ulaanbaatar (ULN) to Seoul (SEL)?

    Based on Trip.com data, Jeju Air offers one-way fares as low as £93 on Cheapest nonstop routes (e.g. UBN to ICN on Thu, Apr 30), while Jeju Air offers Cheapest nonstop round-trips from £165 departing on Tue, Apr 21 and returning on Thu, Apr 23.
  • At the moment, you can catch a direct flight from Ulaanbaatar to Seoul with the following airlines, including: Jeju Air Miat Mongolian Airlines Korean Air Asiana Airlines T'Way Air Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes about 3 hours 12 minutes to fly from Ulaanbaatar (ULN) to Seoul (SEL).
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Ulaanbaatar to Seoul is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 38 flight per week flying from Ulaanbaatar to Seoul. You can check the weekly schedule for popular airlines on this route below: Miat Mongolian Airlines: S/M/T/W/T/F/S -- OM301 (07:54) Miat Mongolian Airlines: S/-/T/W/T/F/S -- OM5301 (12:28) Korean Air: S/M/T/W/T/F/S -- KE5868 (07:54)
  • To find best deals on flights from Ulaanbaatar to Seoul, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Thu, Apr 30, with one-way flights priced at just £93.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Jeju Air.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Seoul travel is around August.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Ulaanbaatar to Seoul is September, when demand for travel is lower.
  • After crunching the numbers on our March flight calendar, it's currently cheapest to fly from Ulaanbaatar to Seoul on March 19, 2026 with Jeju Air, with prices starting at £155.
  • You can land at any one of the following hubs in Seoul, with Chinggis Khaan International Airport to Incheon International Airport (UBN-ICN) is by far the most common option on this route: Gimpo International Airport (GMP) Incheon International Airport (ICN).
  • The time difference between Seoul and Ulaanbaatar is 1h.
  • Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

Trip.com airline insights on flights from Ulaanbaatar to Seoul

Which airlines offer the cheapest direct flights from Ulaanbaatar to Seoul?

Data is based on the past 12 months and reflects the average fare of all direct flights from Ulaanbaatar to Seoul on Trip.com.

Based on Trip.com data from the past 12 months, the airline offering the cheapest direct flights from Ulaanbaatar to Seoul is Jeju Air, with an average fare of £136.

£95
£136
£178
£219
£260
Jeju Air
£136
Jeju Air
T'Way Air
£192
T'Way Air
Asiana Airlines
£213
Asiana Airlines
Air China
£227
Air China
Miat Mongolian Airlines
£230
Miat Mongolian Airlines
Korean Air
£260
Korean Air

Which airlines operate the most flights from Ulaanbaatar to Seoul?

The data is based on the past month and shows the number of flights each airline has from Ulaanbaatar to Seoul on Trip.com.

According to Trip.com data from the past month, the airline with the most flights from Ulaanbaatar to Seoul is Miat Mongolian Airlines, operating 21 flights per week.

0
3
12
21
Miat Mongolian Airlines
21
Miat Mongolian Airlines
Korean Air
20
Korean Air
Delta Air Lines
7
Delta Air Lines
Aero Mongolia
4
Aero Mongolia
Jeju Air
3
Jeju Air
Asiana Airlines
3
Asiana Airlines

How many flights fly from Ulaanbaatar to Seoul each day?

The data is based on the past month and shows the number of flights per day of the week from Ulaanbaatar to Seoul on Trip.com.

Based on Trip.com data from the past month, flights from Ulaanbaatar to Seoul are most frequent on Sunday, while the fewest flights operate on Monday.

52
41
29
18
Highest
29
Mon
30
Tue
31
Wed
44
Thu
35
Fri
36
Sat
52
Sun