AirHint found the following cheapest return flights from Frankfurt (FRA) to Ulaanbaatar (UBN) in August 2025 (see full year).

Return flights

24 Aug - 11 Sep	Ryanair
15 Aug - 18 Sep	Ryanair
29 Aug - 07 Sep	Ryanair
29 Aug - 14 Sep	Ryanair
25 Aug - 07 Sep	Ryanair
04 Aug - 03 Sep	Ryanair
30 Aug - 11 Sep	Turkish Airlines
28 Aug - 14 Sep	Turkish Airlines
30 Aug - 13 Sep	Turkish Airlines
22 Aug - 05 Sep	Ryanair
24 Aug - 31 Aug	Ryanair
19 Aug - 31 Aug	Air China
18 Aug - 29 Aug	Air China
16 Aug - 31 Aug	Turkish Airlines
18 Aug - 25 Aug	Air China
22 Aug - 28 Aug	Air China
04 Aug - 24 Aug	Ryanair
22 Aug - 26 Aug	MIAT Mongolian Airlines	direct
13 Aug - 27 Aug	Turkish Airlines
18 Aug - 27 Aug	Turkish Airlines

Also check the deals for one-way flights from Frankfurt to Ulaanbaatar in August.

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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Cheapest return flights from Frankfurt to Ulaanbaatar in August from 596€

Return flights