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

Return flights

28 Aug - 04 Sep	TAP
30 Aug - 04 Sep	TAP
29 Aug - 04 Sep	TAP
26 Aug - 02 Sep	TAP
31 Aug - 08 Sep	TAP
29 Aug - 05 Sep	TAP
30 Aug - 05 Sep	TAP
24 Aug - 06 Sep	Ryanair
30 Aug - 06 Sep	TAP
31 Aug - 06 Sep	TAP
07 Aug - 11 Aug	easyJet	direct
07 Aug - 18 Aug	easyJet
07 Aug - 21 Aug	easyJet	direct
07 Aug - 18 Aug	easyJet	direct
12 Aug - 17 Aug	Ryanair
07 Aug - 16 Aug	easyJet
04 Aug - 07 Aug	Ryanair
07 Aug - 14 Aug	easyJet	direct
10 Aug - 18 Aug	British Airways
25 Aug - 28 Aug	Ryanair

Also check the deals for one-way flights from Porto to Amilcar Cabral 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 Porto to Amilcar Cabral in August from $298

Return flights