Flights from Seoul to Ulaanbaatar (Sergelen)

ICNUBN

Incheon International Airport (Seoul, South Korea) → Ulaanbaatar Chinggis Khaan International Airport (Ulaanbaatar (Sergelen), Mongolia)

Also known as Seoul, Ulaanbaatar (Sergelen).

Nonstop
3h 15m
Distance
1,957 km
Frequency
7×/week
One-way from
$178
Airlines
Aero Mongolia, Asiana Airlines, Delta Air Lines, Etihad Airways, Jeju Air, Korean Air, Miat - Mongolian Airlines
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Fares by month

One-way, per person

Lowest fares Aviasales travelers found in recent searches; some may include a connection. Prices change often — tap a month to see live fares.

Weekly schedule

Monday

  • DL788507:45→10:253h 40mDelta Air Lines
  • OZ983507:45→10:253h 40mAsiana Airlines
  • KE204307:45→10:253h 40mKorean Air
  • OM530207:45→10:253h 40mMiat - Mongolian Airlines
  • OM30213:20→16:053h 45mMiat - Mongolian Airlines
  • M060217:45→20:003h 15mAero Mongolia
  • OZ56720:20→23:053h 45mAsiana Airlines
  • EY846020:20→23:053h 45mEtihad Airways
  • KE551120:20→23:053h 45mKorean Air
  • OM30823:55→02:403h 45mMiat - Mongolian Airlines

Tuesday

  • 7C520311:30→14:153h 45mJeju Air
  • OM30213:20→16:053h 45mMiat - Mongolian Airlines
  • OM30823:55→02:403h 45mMiat - Mongolian Airlines

Wednesday

  • KE204307:45→10:253h 40mKorean Air
  • OM30213:20→16:053h 45mMiat - Mongolian Airlines
  • M060217:30→20:003h 30mAero Mongolia
  • OZ56720:20→23:053h 45mAsiana Airlines
  • OM30823:55→02:403h 45mMiat - Mongolian Airlines

Thursday

  • KE204307:45→10:253h 40mKorean Air
  • 7C520311:30→14:153h 45mJeju Air
  • OM30213:20→16:053h 45mMiat - Mongolian Airlines
  • OM30823:55→02:403h 45mMiat - Mongolian Airlines

Friday

  • KE204307:45→10:253h 40mKorean Air
  • OM30213:20→16:053h 45mMiat - Mongolian Airlines
  • OM30823:55→02:403h 45mMiat - Mongolian Airlines

Saturday

  • KE204307:45→10:253h 40mKorean Air
  • OM30213:20→16:053h 45mMiat - Mongolian Airlines
  • M060217:30→20:003h 30mAero Mongolia
  • OZ56720:20→23:053h 45mAsiana Airlines
  • OM30823:55→02:403h 45mMiat - Mongolian Airlines

Sunday

  • KE204307:45→10:253h 40mKorean Air
  • 7C520311:30→14:153h 45mJeju Air
  • OM30213:20→16:053h 45mMiat - Mongolian Airlines
  • OM30823:55→02:403h 45mMiat - Mongolian Airlines

Seoul to Ulaanbaatar (Sergelen) — frequently asked

How long is the flight from Seoul to Ulaanbaatar (Sergelen)?
ICN–UBN is 3h 15m nonstop, covering 1,957 km (1,216 mi).
Which airlines fly nonstop from Seoul to Ulaanbaatar (Sergelen)?
Aero Mongolia, Asiana Airlines, Delta Air Lines, Etihad Airways, Jeju Air, Korean Air, Miat - Mongolian Airlines operate this route nonstop.
How much is a flight from Seoul to Ulaanbaatar (Sergelen)?
One-way fares on ICN–UBN recently started from $178. The lowest recent fare is for travel in December 2026. Fares change daily, so check current prices before booking.
How often do flights run from Seoul to Ulaanbaatar (Sergelen)?
The route is served 7 days a week (34 scheduled departures).