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

Return flights

20 Aug - 26 Aug	Eurowings
29 Aug - 02 Sep	Ryanair
20 Aug - 02 Sep	Ryanair
27 Aug - 02 Sep	Ryanair
28 Aug - 02 Sep	Ryanair
28 Aug - 11 Sep	Ryanair	direct
26 Aug - 06 Sep	KLM
30 Aug - 10 Sep	Transavia France
27 Aug - 10 Sep	KLM
27 Aug - 03 Sep	Ryanair
28 Aug - 18 Sep	Ryanair	direct
19 Aug - 26 Aug	KLM
25 Aug - 28 Aug	Ryanair
20 Aug - 27 Aug	Norwegian Air Sweden AOC
19 Aug - 23 Aug	KLM
20 Aug - 28 Aug	Eurowings	direct
23 Aug - 28 Aug	Ryanair
21 Aug - 28 Aug	Ryanair
24 Aug - 28 Aug	Ryanair
13 Aug - 27 Aug	easyJet

Also check the deals for one-way flights from Berlin 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 Berlin to Porto in August from 200€

Return flights