⚡ Fare recorded April 25, 2026 · Prices change daily

Seoul to Ulaanbaatar flights

Seoul (ICN) to Ulaanbaatar (UBN): 1,216 miles (1,957 km) great-circle, about 2h 55m nonstop by our estimate. Cheapest fare observed: $359 round-trip on Jeju Air, nonstop, departing June 6, 2026.

7CJeju Air7C5203
Depart
ICN
Seoul, South Korea
10:00
2026-06-06
✈
Arrive
UBN
Ulaanbaatar, Mongolia
Returns 14:50
2026-07-22
Stops
non-stop
Distance
1,216 mi
Est. nonstop time
2h 55m
Trip type
Round-trip
$359
Round-trip · per person
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About this flight

When did the cheapest Seoul to Ulaanbaatar fare fly?

$359 round-trip, Jeju Air 7C5203, departing 2026-06-06 at 10:00, returning 2026-07-22. The recorded itinerary left on a Saturday, returning on a Wednesday 46 nights later; the fare was observed 42 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.

Route facts

How far is Seoul from Ulaanbaatar?

  • Distance: 1,216 miles (1,957 km) great-circle, heading northwest.
  • Estimated nonstop flight time: about 2h 55m.
  • Departure airport: Incheon International Airport (ICN), Seoul, South Korea, UTC+9 on June 6, 2026.
  • Arrival: Chinggis Khaan International Airport (UBN), Mongolia, UTC+8 on June 6, 2026.
  • Time difference: Ulaanbaatar is 1 hour behind Seoul on the recorded date.
  • Route type: international, South Korea to Mongolia.
  • Arrival airport elevation: 4,482 ft.
  • Recorded itinerary: Jeju Air 7C5203, non-stop, round-trip, 46 days between departure and return.
Fare comparison

How does the Seoul to Ulaanbaatar fare compare with other routes from ICN?

At $359, it ranked 15th of the 30 round-trip fares we recorded from ICN (median $393). That is 29.5 cents per great-circle mile (round-trip price over one-way distance), above the ICN median of 21.3 cents across 30 round-trip routes.

Routes from ICN of similar length: Guangzhou (1,246 mi) at $271 and Hong Kong (1,286 mi) at $219.

Jeju Air had the cheapest fare on 5 of 30 ICN routes. It is the 21st longest of the 30 routes we track from ICN.

Other ways in

What did other cities pay to fly to Ulaanbaatar?

Of 6 departure airports with a fare to Ulaanbaatar, Seoul (ICN) ranked 1st at $359. Lowest: $359 from Seoul (ICN); highest: $1531 from San Francisco (SFO); 2 nonstop. Cheapest-fare airlines (routes): Jeju Air (2), MIAT Mongolian Airlines (2), Air China (1) and Asiana (1).

Sources

Where do these numbers come from?

Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Asia/Seoul, Asia/Ulaanbaatar; flight time is our estimate.

FAQ

Seoul to Ulaanbaatar flight questions

How far is Seoul from Ulaanbaatar by plane?

+
Seoul is about 1,216 miles (1,957 km) from Ulaanbaatar on a great-circle line from Incheon International Airport (ICN) to Chinggis Khaan International Airport (UBN), heading northwest. It is the 21st longest of the 30 routes we track from ICN. The recorded itinerary was nonstop.

How long is the flight from Seoul to Ulaanbaatar?

+
About 2h 55m nonstop by our estimate for 1,216 miles (500 mph cruise plus 30 minutes, not a timetable). The recorded Jeju Air fare was nonstop. 6 airports in our feed had a fare to Ulaanbaatar; this one ranked 1st, and 2 of the 6 were nonstop.

What is the time difference between Seoul and Ulaanbaatar?

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On June 6, 2026, Seoul was on UTC+9 (Asia/Seoul) and Ulaanbaatar on UTC+8 (Asia/Ulaanbaatar), so Ulaanbaatar was 1 hour behind Seoul: noon in Seoul was 11:00 in Ulaanbaatar. Neither Asia/Seoul nor Asia/Ulaanbaatar shifts for daylight saving, so the gap holds all year.

How much is a flight from Seoul to Ulaanbaatar?

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As observed on April 25, 2026: $359 per person round-trip on Jeju Air flight 7C5203, departing June 6, 2026, returning July 22, 2026, nonstop. At $359, it ranked 15th of the 30 round-trip fares we recorded from ICN (median $393). That is 29.5 cents per great-circle mile (round-trip price over one-way distance), above the ICN median of 21.3 cents across 30 round-trip routes. Prices change daily, so check the live fare.

Is there a nonstop flight from Seoul to Ulaanbaatar?

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Yes, the cheapest recorded fare was a nonstop Jeju Air flight, 7C5203, on June 6, 2026. Into Ulaanbaatar, 2 of the 6 recorded fares were nonstop. From ICN, 7 of 30 were. Routes from ICN of similar length: Guangzhou (1,246 mi) at $271 and Hong Kong (1,286 mi) at $219.

Which airports serve flights from Seoul to Ulaanbaatar?

+
It departs Incheon International Airport (ICN) in Seoul, South Korea, and arrives at Chinggis Khaan International Airport (UBN) in Ulaanbaatar, Mongolia. An international flight, South Korea to Mongolia. Jeju Air had the cheapest fare on 5 of 30 ICN routes.

Where else near Ulaanbaatar can you fly from Seoul?

Irkutsk (IKT) $723Beijing (BJS) $245Harbin (HRB) $231Novosibirsk (OVB) $889Vladivostok (VVO) $434Khabarovsk (KHV) $717All flights from Seoul →

Other cities with flights to Ulaanbaatar

From Hong Kong (HKG) $488From Tokyo (NRT) $503From Taipei (TPE) $510From Tokyo (HND) $692From San Francisco (SFO) $1531

Ready to fly?

Book Jeju Air ICN → UBN · $359 →