Cheap flights from Ulaanbaatar to Seoul from $150 UBN → GMP, ICN

Found recently, and the cheapest we hold

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $249 to $330.

At $331, the cheapest return found recently is above that range.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other 9-night return fares leaving within 3 days of 29 Nov to compare.

Every date we hold

698 fares on 89 departure dates

Which month looks cheapest?

December 2026 is the cheapest month — from $308.

Found recently, and the cheapest we hold

It is also the cheapest one-way we hold, of any age.

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $104 to $170.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

No. We hold one-way fares on 1 other departure date within 3 days of 3 Dec, and it is not cheaper.

Every date we hold

193 fares on 45 departure dates

Which month looks cheapest?

December 2026 is the cheapest month — from $150.

Return

Fares 30 to 59 days before departure were typically 28% lower than 0 to 6 days before departure.

From the cheapest return each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

One-way

Fares 30 to 59 days before departure were typically 30% lower than 0 to 6 days before departure.

From the cheapest one-way each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

How much is a return flight from Ulaanbaatar to Seoul?

The cheapest return found recently is $331 with Jeju Air, 29 Nov to 8 Dec, found 2 days ago. The cheapest return we hold, of any age, is $308 with Jeju Air, 10 Dec to 13 Dec, found 7 days ago. The cheapest return fare on each of 89 departure dates is usually $378 to $416.

How much is a one-way flight from Ulaanbaatar to Seoul?

The cheapest one-way found recently is $150 with Jeju Air, 3 Dec, found 2 days ago. The cheapest one-way fare on each of 45 departure dates is usually $181 to $231.

What is the cheapest month to fly from Ulaanbaatar to Seoul?

December 2026 is the cheapest month for a return, from $308, 10 Dec to 13 Dec, found 7 days ago. It is the cheapest month for a one-way too, from $150, 3 Dec, found 2 days ago.

Every date in December 2026

How far ahead should I book a flight from Ulaanbaatar to Seoul?

In 49 days of prices between 24 Sept and 11 Nov, return fares 30 to 59 days before departure were typically 28% lower than 0 to 6 days before departure. One-way fares 30 to 59 days before departure were typically 30% lower than 0 to 6 days before departure.

Is there a direct flight from Ulaanbaatar to Seoul?

Yes, the cheapest nonstop return found recently is $331 with Jeju Air, 29 Nov to 8 Dec, found 2 days ago. The cheapest nonstop one-way found recently is $150 with Jeju Air, 3 Dec, found 2 days ago.

How long is the flight from Ulaanbaatar to Seoul?

The cheapest nonstop one-way found recently, with Jeju Air on 3 Dec, takes 3 h 10 min from Chinggis Khaan International Airport (UBN) to Incheon International Airport (ICN).

Which airlines have the cheapest flights from Ulaanbaatar to Seoul?

Between 15 Nov and 18 Oct 2027, MIAT Mongolian Airlines has the cheapest return on 27 of the 89 departure dates we hold, Aero Mongolia on 19 and Korean Air on 17. Between 17 Nov and 30 Oct 2027, Jeju Air has the cheapest one-way on 15 of the 45 departure dates we hold, Korean Air on 13 and MIAT Mongolian Airlines on 9.