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

Return flights

29 Aug - 02 Sep	KLM
21 Aug - 28 Aug	KLM
01 Aug - 03 Aug	Ryanair
23 Aug - 29 Aug	Lufthansa
21 Aug - 26 Aug	Ryanair
01 Aug - 06 Aug	Ryanair
12 Aug - 15 Aug	Ryanair
24 Aug - 03 Sep	Lufthansa
05 Aug - 14 Aug	Ryanair
06 Aug - 20 Aug	Ryanair
13 Aug - 20 Aug	Ryanair
01 Aug - 12 Aug	Ryanair
08 Aug - 14 Sep	Ryanair

Also check the deals for one-way flights from Bremen 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 Bremen to Porto in August from $226

Return flights