ICN → UBNSeoul to Ulaanbaatar

live

Direct flights from Seoul (ICN) to Ulaanbaatar (UBN): 36 nonstop departures observed each week across 6 airlines. 39% of the last 61 operated flights arrived within 15 minutes of schedule. The median arrival is 21 minutes late. No cancellations were recorded across the 61 tracked flights. The nonstop covers 1,957 km, an estimated 3 hours 1 minutes in the air. Measured by Pro Flight Search from live flight boards at Seoul and Ulaanbaatar. Updated 18 August 2026 at 02:24 UTC.

ICN Seoul busy · +24
UBN Ulaanbaatar tracking
1,957 km · ~3h 01m est.
dep bank 00:05–20:2036x weekly
Runs rough · 6 airlines · 36x weekly · nonstop
39% on time

of the last 61 operated ICN → UBN flights arrived within 15 minutes

Median arrival delay is +21 min. 0 of 61 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Search live fares for this route →
Median arrival+21 minacross the last 61 operated legs
Flight time~3h 01mestimated from route distance
Weekly departures36x6 direct airlines on the leg
Cancelled0.0%recent route rate · 0 of 61

Current nonstop fares

ICN → UBN · one way · economy · 1 adult

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TodayChecking…Direct airline fares
TomorrowChecking…Direct airline fares
In one weekChecking…Direct airline fares

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Aero MongoliaAsiana AirlinesJeju AirKOREAN AIRLINES

Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.

Who flies it

observed on the boards · 7 days
Aero MongoliaM050% on time

Flights M0602 varies daily

Asiana AirlinesOZ0% on time

Flights OZ567 20:20 Mo Tu We Fr Sa

Jeju Air7C25% on time

Flights 7C5203 10:00 Mo Tu Th Sa Su · 7C5275 13:45 Tu Fr

KOREAN AIRLINESKE10% on time

Flights KE2041 08:35 daily

MONGOLIAN AIRLINESOM64% on time

Flights OM308 00:05 daily · OM310 01:50 daily · OM302 14:20 daily · OM304 16:05 Mo Tu We Th Fr

Tway AIRTW

Flights TW421 10:40 Mo We Fr Su

History

operated legs · board outcomes
08-187C5203departed+33
08-18KE2041departed+42
08-18M0602departed−2
08-18OM308departed+23
08-18OM310departed+6
08-177C5203departed+16
08-17KE2041departed+13
08-17OM302departed+11
08-17OM304departed+7
08-17OM308departed+7
08-17OM310departed+5
08-17OM7302departed+12
08-17OZ567departed+44
08-17TW421departed+34
08-167C5203departed+22
08-16KE2041departed+29
08-16KE2045departed+32
08-16M0602departed+19
08-16OM302departed+17
08-16OM308departed+15
08-16OM310departed+2
08-16TW421departed+23
08-157C5203departed+8
08-15KE2041departed+16
08-15M0602departed+10
08-15OM302departed+44
08-15OM308departed+8
08-15OM310departed−2
08-15OZ567departed+68
08-147C5275departed+51
08-14KE2041departed+36
08-14M0602departed+48
08-14M0604departed+378
08-14OM302departed+37
08-14OM304departed+21
08-14OM308departed−5
08-14OM310departed+70
08-14OZ567departed+38
08-14TW421departed+34
08-137C5203departed+15

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
ICNSeoul +24 min busy Full ICN delay board →
UBNUlaanbaatar tracking Full UBN delay board →

How the Seoul to Ulaanbaatar route actually runs

Pro Flight Search tracks every published board update for nonstop ICN to UBN flights: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises. Fares link straight to the operating airline with no markups.

Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — Seoul (ICN) to Ulaanbaatar (UBN) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/ICN-UBN
How we measure this →

ICN to UBN questions

Is ICN–UBN running on time right now?

Mostly on schedule. The departure side at ICN is the weaker end, route health score 68/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on ICN–UBN?

Operators schedule morning departures around 00:05 and evening departures around 20:20 from ICN. Earlier flights typically land before destination-airport delays accumulate later in the day; check the UBN delay card to confirm conditions when you'd arrive.

How long is the flight from ICN to UBN?

Great-circle distance is 1,957 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 168–198 min gate-to-gate on this route.

How often does ICN–UBN fly?

6 carriers operate this route, around 59 flights a week between them. Compare carrier days and times in the airline list above.