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

Return flights

17 Sep - 24 Sep	easyJet
19 Sep - 30 Sep	easyJet
17 Sep - 23 Sep	easyJet
13 Sep - 16 Sep	Transavia France
24 Sep - 01 Oct	easyJet
16 Sep - 17 Sep	easyJet
16 Sep - 24 Sep	easyJet
17 Sep - 03 Oct	easyJet
02 Sep - 16 Sep	Transavia France
10 Sep - 24 Sep	easyJet
20 Sep - 01 Oct	Transavia France
28 Sep - 01 Oct	Transavia France
11 Sep - 16 Sep	Transavia France
12 Sep - 17 Sep	easyJet
29 Sep - 16 Oct	easyJet
29 Sep - 16 Oct	Ryanair	direct
30 Sep - 09 Oct	easyJet
29 Sep - 02 Oct	Ryanair	direct
20 Sep - 04 Oct	Transavia France
27 Sep - 04 Oct	Transavia France

Also check the deals for one-way flights from Berlin 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 Berlin to Porto in September from 143€

Return flights