Nonstop flights from Ulaanbaatar (Sergelen) to Seoul

5 airlines fly this route, with up to 7 flights a day.

UBNUlaanbaatar (Sergelen) New Ulaanbaator International

1,217 mi · 44 flights a week

ICNSeoul Incheon International

UBNICN

When they leave

Ulaanbaatar (Sergelen) time

12:25a8:30pFirst departure 12:25 AM, last 8:30 PM

Two overnight flights, 12:25 AM to 12:45 AM, then one morning flight at 8:40 AM, then three in the afternoon, 12:30 PM to 1:40 PM, then two in the evening, 6:15 PM to 8:30 PM.

Every flight

Earliest first

12:25 AM→4:45 AMAsiana AirlinesAirbus A330Tue, Wed, Thu, Sat, Sun
12:45 AM→4:45 AMKorean AirAirbus A330Mon, Fri
8:40 AM→12:50 PMMIAT Mongolian AirlinesBoeing 787Daily
12:30 PM→4:35 PMAero MongoliaAirbus A319Mon, Wed, Thu, Fri, Sat, Sun
1:00 PM→5:10 PMKorean AirAirbus A330Daily
1:40 PM→5:55 PMJeju AirBoeing 737Mon, Tue, Thu, Sat, Sun
6:15 PM→10:25 PMMIAT Mongolian AirlinesBoeing 787Daily
8:30 PM→12:40 AM⁺¹MIAT Mongolian AirlinesBoeing 787Tue, Thu, Fri, Sat, Sun

Schedules last checked Sep 8, 2026. Times are local.

Flying from Ulaanbaatar (Sergelen) to Seoul

MIAT Mongolian Airlines flies most often, 2 to 3 times a day on the Boeing 787. Korean Air flies 1 to 2 times a day on the Airbus A330. Aero Mongolia flies 6 times a week on the Airbus A319. Asiana Airlines flies 5 times a week on the Airbus A330. Jeju Air flies 5 times a week on the Boeing 737.

Flights run every day of the week, from 5 on Wednesdays to 7 on Thursdays, Saturdays and Sundays. The first arrival in Seoul is at 4:45 AM and the last at 12:40 AM the next day. The flight covers 1,217 miles.

T'way Air stopped flying it after Sep 16.

Flying back, Seoul to Ulaanbaatar (Sergelen) has 49 nonstop flights a week.