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
16 Sep - 27 Sep	Eurowings	direct
13 Sep - 27 Sep	Eurowings	direct
09 Sep - 27 Sep	Eurowings	direct
13 Sep - 20 Sep	Eurowings	direct
16 Sep - 20 Sep	Eurowings	direct
09 Sep - 16 Sep	Eurowings	direct
13 Sep - 16 Sep	Eurowings	direct
09 Sep - 13 Sep	Eurowings	direct
06 Sep - 09 Sep	Eurowings	direct
06 Sep - 13 Sep	Eurowings	direct
15 Sep - 04 Oct	Eurowings
23 Sep - 04 Oct	Lufthansa
26 Sep - 01 Oct	Lufthansa

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 $136

Return flights