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

Return flights

16 Sep - 02 Oct	SWISS
18 Sep - 02 Oct	SWISS
18 Sep - 04 Oct	SWISS
22 Sep - 28 Sep	SWISS
18 Sep - 25 Sep	SWISS
20 Sep - 25 Sep	SWISS
28 Sep - 05 Oct	Austrian Airlines
12 Sep - 21 Sep	SWISS
16 Sep - 23 Sep	EgyptAir
11 Sep - 16 Sep	SWISS
25 Sep - 28 Sep	Vueling Airlines
18 Sep - 01 Oct	Vueling Airlines
20 Sep - 01 Oct	Vueling Airlines
12 Sep - 17 Sep	SWISS
16 Sep - 01 Oct	Vueling Airlines
18 Sep - 08 Oct	Vueling Airlines
20 Sep - 08 Oct	Vueling Airlines
09 Sep - 14 Sep	Vueling Airlines
18 Sep - 26 Sep	Vueling Airlines
15 Sep - 01 Oct	Vueling Airlines

Also check the deals for one-way flights from Cairo 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 Cairo to Porto in September from 183€

Return flights