AirHint found the following cheapest return flights from Munich (MUC) to Porto (OPO) in August 2025 (see full year).

Return flights

24 Aug - 04 Sep	KLM
29 Aug - 16 Sep	Vueling Airlines
27 Aug - 16 Sep	Vueling Airlines
23 Aug - 09 Sep	Vueling Airlines
28 Aug - 06 Sep	KLM
21 Aug - 09 Sep	Vueling Airlines
29 Aug - 09 Sep	Vueling Airlines
23 Aug - 03 Sep	Vueling Airlines
20 Aug - 03 Sep	KLM
17 Aug - 03 Sep	KLM
18 Aug - 20 Aug	Air Europa
13 Aug - 20 Aug	Vueling Airlines
06 Aug - 13 Aug	Condor
04 Aug - 13 Aug	Vueling Airlines
04 Aug - 11 Aug	TAP
08 Aug - 14 Aug	TAP
19 Aug - 27 Aug	KLM
17 Aug - 24 Aug	KLM
23 Aug - 26 Aug	Vueling Airlines
23 Aug - 27 Aug	Vueling Airlines

Also check the deals for one-way flights from Munich 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.

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Cheapest return flights from Munich to Porto in August from $235

Return flights