Cheapest return flights from Istanbul to Ulaanbaatar in September from 641€

Best time to book flights for Istanbul (IST) to Ulaanbaatar (UBN) flights at AirHint

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

Return flights

11 Sep - 05 Oct MIAT Mongolian Airlines direct
21 Sep - 05 Oct MIAT Mongolian Airlines direct
16 Sep - 30 Sep MIAT Mongolian Airlines direct
13 Sep - 27 Sep Turkish Airlines direct
12 Sep - 12 Oct Turkish Airlines direct
13 Sep - 12 Oct Turkish Airlines direct
13 Sep - 05 Oct Turkish Airlines direct
13 Sep - 04 Oct Turkish Airlines direct
20 Sep - 04 Oct Turkish Airlines direct
14 Sep - 28 Sep MIAT Mongolian Airlines direct

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

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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.

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