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

Return flights

27 Aug - 16 Sep	easyJet
27 Aug - 17 Sep	easyJet
26 Aug - 09 Sep	Vueling Airlines
27 Aug - 18 Sep	easyJet
28 Aug - 05 Sep	KLM
27 Aug - 09 Sep	KLM
26 Aug - 04 Sep	KLM
25 Aug - 04 Sep	KLM
30 Aug - 11 Sep	Ryanair
22 Aug - 04 Sep	Vueling Airlines
21 Aug - 28 Aug	Condor
26 Aug - 29 Aug	KLM
26 Aug - 28 Aug	Condor
26 Aug - 27 Aug	Vueling Airlines
25 Aug - 28 Aug	Scandinavian Airlines
22 Aug - 29 Aug	KLM
25 Aug - 26 Aug	Scandinavian Airlines
17 Aug - 27 Aug	Condor
27 Aug - 27 Aug	Vueling Airlines
24 Aug - 28 Aug	Condor

Also check the deals for one-way flights from Hamburg 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 Hamburg to Porto in August from 177€

Return flights