AirHint found the following cheapest return flights from Seoul (GMP) to Ulaanbaatar (UBN) in July 2026 (see full year).

Return flights

06 Jul - 11 Jul	Air China
02 Jul - 05 Jul	Air China
20 Jul - 03 Aug	Air China
15 Jul - 29 Jul	Air China
22 Jul - 29 Jul	Air China
25 Jul - 02 Aug	Air China
13 Jul - 10 Aug	Air China
29 Jul - 02 Aug	Air China
20 Jul - 24 Jul	Air China
07 Jul - 14 Jul	Air China
04 Jul - 20 Jul	Air China
10 Jul - 15 Jul	Air China
09 Jul - 14 Jul	Air China
09 Jul - 12 Jul	Air China

Also check the deals for one-way flights from Seoul to Ulaanbaatar in July.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in Ulaanbaatar

Cheap car rent in Ulaanbaatar

Cheapest return flights from Seoul to Ulaanbaatar in July from 460€

Return flights