AirHint found the following cheapest return flights from Istanbul (IST) to Ulaanbaatar (UBN) in October 2025 (see full year).

Return flights

23 Oct - 30 Oct	MIAT Mongolian Airlines	direct
02 Oct - 09 Oct	MIAT Mongolian Airlines	direct
06 Oct - 12 Oct	Turkish Airlines	direct
15 Oct - 19 Oct	Turkish Airlines	direct
24 Oct - 01 Nov	Turkish Airlines	direct
10 Oct - 19 Oct	Turkish Airlines	direct
25 Oct - 02 Nov	Turkmenistan Airlines
11 Oct - 14 Oct	AJet

Also check the deals for one-way flights from Istanbul to Ulaanbaatar in October.

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 Istanbul to Ulaanbaatar in October from 395€

Return flights