AirHint found the following cheapest return flights from Stuttgart (STR) to Mostar (OMO) in September 2025 (see full year).

Return flights

16 Sep - 04 Oct	Eurowings	direct
02 Sep - 04 Oct	Eurowings	direct
20 Sep - 11 Oct	Eurowings	direct
06 Sep - 16 Sep	Eurowings	direct
27 Sep - 04 Oct	Eurowings	direct
19 Sep - 29 Sep	Air Serbia
13 Sep - 23 Sep	Eurowings
13 Sep - 01 Oct	Eurowings
14 Sep - 01 Oct	Air Serbia

Also check the deals for one-way flights from Stuttgart to Mostar in September.

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 Stuttgart to Mostar in September from $117

Return flights