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

Return flights

24 Sep - 08 Oct	Ryanair	direct
17 Sep - 24 Sep	Ryanair	direct
24 Sep - 04 Oct	Ryanair	direct
27 Sep - 08 Oct	Ryanair	direct
17 Sep - 04 Oct	Ryanair	direct
24 Sep - 30 Sep	Ryanair
09 Sep - 17 Sep	Ryanair
17 Sep - 01 Oct	Ryanair	direct
17 Sep - 22 Sep	Ryanair
04 Sep - 17 Sep	Ryanair
27 Sep - 01 Oct	Ryanair
24 Sep - 29 Sep	Ryanair
20 Sep - 08 Oct	Ryanair	direct
10 Sep - 17 Sep	Ryanair	direct
17 Sep - 27 Sep	Ryanair	direct
13 Sep - 17 Sep	Ryanair	direct
27 Sep - 10 Oct	Ryanair
10 Sep - 24 Sep	Ryanair	direct
24 Sep - 09 Oct	Ryanair
27 Sep - 03 Oct	Ryanair

Also check the deals for one-way flights from Hahn 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 Hahn to Porto in September from 81€

Return flights