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

Return flights

11 Sep - 15 Sep	Ethiopian Airlines
09 Sep - 22 Sep	Ethiopian Airlines
13 Sep - 24 Sep	Ethiopian Airlines
18 Sep - 28 Sep	Ethiopian Airlines
11 Sep - 21 Sep	Ethiopian Airlines
25 Sep - 28 Sep	Air France
17 Sep - 21 Sep	KLM
27 Sep - 14 Oct	Air France
30 Sep - 03 Oct	Ethiopian Airlines
17 Sep - 28 Sep	KLM
10 Sep - 14 Sep	KLM
10 Sep - 21 Sep	KLM
08 Sep - 05 Oct	KLM
28 Sep - 05 Oct	TAP
07 Sep - 10 Oct	Lufthansa
14 Sep - 19 Oct	KLM

Also check the deals for one-way flights from Porto to Luanda 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 Porto to Luanda in September from 535€

Return flights