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

Return flights

16 Sep - 22 Sep	Ryanair
16 Sep - 23 Sep	Ryanair
26 Sep - 10 Oct	easyJet
01 Sep - 05 Sep	easyJet
17 Sep - 24 Sep	IndiGo
19 Sep - 23 Sep	IndiGo
20 Sep - 30 Sep	IndiGo
11 Sep - 24 Sep	IndiGo
21 Sep - 27 Sep	IndiGo
13 Sep - 18 Sep	IndiGo
28 Sep - 01 Oct	IndiGo
29 Sep - 12 Oct	IndiGo
13 Sep - 20 Sep	IndiGo

Also check the deals for one-way flights from Porto to Abu Dhabi 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 Abu Dhabi in September from $415

Return flights