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

Return flights

07 Aug - 14 Aug	easyJet
05 Aug - 12 Aug	TAP
11 Aug - 18 Aug	TUI fly Belgium
04 Aug - 11 Aug	easyJet
07 Aug - 14 Aug	easyJet	direct
04 Aug - 11 Aug	easyJet	direct
20 Aug - 27 Aug	easyJet
13 Aug - 20 Aug	easyJet
08 Aug - 15 Aug	TAP
12 Aug - 19 Aug	easyJet
30 Aug - 06 Sep	Vueling Airlines
30 Aug - 13 Sep	Vueling Airlines
16 Aug - 06 Sep	Vueling Airlines
23 Aug - 06 Sep	Vueling Airlines
23 Aug - 13 Sep	Vueling Airlines

Also check the deals for one-way flights from Amilcar Cabral 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 Amilcar Cabral to Porto in August from $681

Return flights