AirHint found the following cheapest return flights from Athens (ATH) to Lisbon (LIS) in September 2026 (see full year).

Return flights

22 Sep - 04 Oct	Volotea	direct
16 Sep - 04 Oct	Vueling Airlines
15 Sep - 21 Sep	easyJet
30 Sep - 07 Oct	easyJet
22 Sep - 08 Oct	Volotea	direct
17 Sep - 04 Oct	Vueling Airlines
22 Sep - 29 Sep	Volotea
16 Sep - 21 Sep	Vueling Airlines
02 Sep - 24 Sep	easyJet
16 Sep - 22 Sep	Vueling Airlines
16 Sep - 29 Sep	Vueling Airlines
22 Sep - 24 Sep	Volotea
22 Sep - 28 Sep	Volotea
17 Sep - 22 Sep	easyJet
15 Sep - 20 Sep	easyJet
30 Sep - 07 Oct	Aegean Airlines	direct
30 Sep - 04 Oct	Volotea	direct
29 Sep - 04 Oct	Volotea	direct
28 Sep - 04 Oct	Volotea	direct
18 Sep - 04 Oct	Volotea	direct

Also check the deals for one-way flights from Athens to Lisbon 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 Athens to Lisbon in September from 167€

Return flights