AirHint found the following cheapest return flights from Stuttgart (STR) to Porto (OPO) in August 2026 (see full year).

Return flights

23 Aug - 07 Sep	KLM
23 Aug - 08 Sep	KLM
27 Aug - 04 Sep	KLM
28 Aug - 15 Sep	Vueling Airlines
26 Aug - 09 Sep	Eurowings
26 Aug - 07 Sep	KLM
26 Aug - 08 Sep	KLM
25 Aug - 07 Sep	KLM
28 Aug - 16 Sep	Vueling Airlines
26 Aug - 08 Sep	Eurowings	direct
19 Aug - 25 Aug	Vueling Airlines
23 Aug - 30 Aug	KLM
27 Aug - 30 Aug	KLM
05 Aug - 09 Aug	Eurowings	direct
20 Aug - 25 Aug	Vueling Airlines
06 Aug - 11 Aug	Eurowings
12 Aug - 25 Aug	Eurowings	direct
03 Aug - 10 Aug	Eurowings	direct
23 Aug - 25 Aug	Vueling Airlines
09 Aug - 24 Aug	KLM

Also check the deals for one-way flights from Stuttgart to Porto 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.

Book a cheap hotel in Porto

Cheap car rent in Porto

Cheapest return flights from Stuttgart to Porto in August from $255

Return flights