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

Return flights

12 Sep - 20 Sep	Ryanair
25 Sep - 09 Oct	Ryanair	direct
29 Sep - 08 Oct	easyJet
30 Sep - 04 Oct	Ryanair
12 Sep - 27 Sep	Ryanair
25 Sep - 10 Oct	Ryanair	direct
23 Sep - 28 Sep	Ryanair
11 Sep - 20 Sep	Ryanair
12 Sep - 17 Sep	Ryanair
12 Sep - 16 Sep	Ryanair
23 Sep - 27 Sep	Ryanair
12 Sep - 18 Sep	Ryanair	direct
12 Sep - 15 Sep	Ryanair
11 Sep - 29 Sep	Ryanair	direct
25 Sep - 01 Oct	Ryanair
25 Sep - 13 Oct	Ryanair	direct
30 Sep - 02 Oct	easyJet
25 Sep - 06 Oct	Ryanair	direct
29 Sep - 02 Oct	easyJet
28 Sep - 07 Oct	Ryanair

Also check the deals for one-way flights from Porto to Berlin 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 Porto to Berlin in September from 145€

Return flights