Cheap flights from Seoul to Ulaanbaatar (ICN–UBN)
ICNIncheon International Airport
South Korea
South Korea
UBNUlaanbaatar Chinggis Khaan International Airport
Mongolia
Mongolia
Aero Mongolia, Asiana Airlines, Jeju Air, Korean Air, MIAT Mongolian Airlines and Trinity Airways fly Seoul to Ulaanbaatar (ICN–UBN) nonstop and back, a great-circle distance of 1,960 km (1,220 mi).
- From
- ICN
- Seoul
- To
- UBN
- Ulaanbaatar
- Nonstop
- Yes · 6 airlines
- Airlines
- M0 · OZ · 7C · KE · OM · TW
- Cheapest fare found
- ₩163,695 one-way
- Distance
- 1,960 km (1,220 mi)
- Time difference
- Ulaanbaatar 1 hour behind
Network data imported from airport and airline sources:· How we verify
Seoul to Ulaanbaatar fares by month
Cheapest one-way fare found: ₩163,695 for December 2026 on Jeju Air, nonstop. Nonstop from ₩163,695.
- Oct ’26₩249,543
- Nov ’26₩174,250
- Dec ’26₩163,695
- Jan ’27₩204,539
- Feb ’27₩277,389
- Mar ’27₩214,306
- Apr ’27₩280,994
- May ’27₩278,965
- Jun ’27₩312,562
- Jul ’27₩311,286
Cheapest one-way fares per month of departure in the Aviasales price cache, found . Fares change by the hour: the live fare is shown when you search.
When to fly ICN–UBN
For Seoul Incheon (ICN) to Ulaanbaatar Chinggis Khaan (UBN), December 2026 had the lowest fare found (₩163,695). Set your watch 1 hour back on landing at UBN.
Seoul to Ulaanbaatar: frequently asked questions
Fares: Aviasales price cache, 8 October 2026.
How much is a flight from Seoul Incheon (ICN) to Ulaanbaatar Chinggis Khaan (UBN)?
From ₩163,695 one-way, the cheapest fare found for December 2026 on Jeju Air, nonstop; nonstop from ₩163,695 (found 8 October 2026).
Which airlines fly ICN–UBN direct?
Aero Mongolia, Asiana Airlines, Jeju Air, Korean Air, MIAT Mongolian Airlines and Trinity Airways.
What is the cheapest month to fly ICN–UBN?
December 2026, at ₩163,695; the dearest month found was ₩312,562.
What is the time difference between Seoul and Ulaanbaatar?
Ulaanbaatar is 1 hour behind Seoul: a ICN departure at noon is 11:00 local time in UBN.
Ulaanbaatar to Seoul: the return flight (UBN–ICN)
All 6 airlines also fly UBN–ICN nonstop.
Airlines flying ICN–UBN nonstop
| Airline | Usually takes off (ICN time) | Type | Alliance | Notes |
|---|---|---|---|---|
| Aero Mongolia M0 | — | full-service | — | — |
 Asiana Airlines OZ | — | full-service | Star Alliance | — |
 Jeju Air 7C | — | low-cost | — | — |
 Korean Air KE | — | full-service | SkyTeam | — |
 MIAT Mongolian Airlines OM | — | full-service | — | — |
 Trinity Airways TW | — | full-service | — | Seasonal |
One-stop alternatives to flying ICN–UBN nonstop
One airline on both legs; check it's sold as one ticket.
- Via Beijing (PEK) with
Air China: 2,050 km (1,270 mi) flown, 5% further than nonstop. - Via Ordos City (DSN) with China United Airlines: 2,400 km (1,490 mi) flown, 23% further than nonstop.
ICN–UBN route map
More from Seoul and Ulaanbaatar
Explore the airlines’ route maps
- Asiana Airlines route map and destinations
- Jeju Air route map and destinations
- Korean Air route map and destinations
- MIAT Mongolian Airlines route map and destinations
- Trinity Airways route map and destinations
Plan your arrival at Ulaanbaatar Chinggis Khaan International Airport (UBN)
Departure
Incheon International Airport
Incheon (ICN), Seoul. In our data, 83 airlines fly nonstop from ICN to 157 destinations.
View ICN airport guide →Arrival
Ulaanbaatar Chinggis Khaan International Airport
Ulaanbaatar Chinggis Khaan (UBN), Ulaanbaatar.
Onward from Ulaanbaatar
Places you can't fly to nonstop from ICN, but can from UBN — for a stopover or a second leg.
Related routes
Sources
- en.wikipedia.org — airlines and destinations, checked 2026-10-01
- en.wikipedia.org — airlines and destinations, checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
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