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

Return flights

29 Sep - 13 Oct	easyJet
15 Sep - 17 Sep	easyJet
01 Sep - 16 Sep	easyJet
03 Sep - 10 Sep	easyJet
04 Sep - 16 Sep	easyJet
01 Sep - 15 Sep	easyJet
15 Sep - 21 Sep	easyJet
01 Sep - 11 Sep	easyJet
01 Sep - 10 Sep	easyJet
04 Sep - 10 Sep	easyJet
23 Sep - 07 Oct	easyJet
16 Sep - 06 Oct	Vueling Airlines
15 Sep - 18 Sep	easyJet
15 Sep - 02 Oct	easyJet
27 Sep - 01 Oct	easyJet
24 Sep - 14 Oct	Vueling Airlines
29 Sep - 04 Oct	easyJet
26 Sep - 08 Oct	easyJet
16 Sep - 01 Oct	Vueling Airlines
20 Sep - 09 Oct	Vueling Airlines

Also check the deals for one-way flights from Munich to Porto 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 Munich to Porto in September from $160

Return flights