AirHint found the following cheapest return flights from Athens (ATH) to Lisbon (LIS) in October 2025 (see full year).

Return flights

15 Oct - 23 Oct	Vueling Airlines
14 Oct - 23 Oct	easyJet
16 Oct - 23 Oct	easyJet
15 Oct - 21 Oct	Vueling Airlines
20 Oct - 23 Oct	easyJet
14 Oct - 21 Oct	easyJet
06 Oct - 14 Oct	easyJet
06 Oct - 09 Oct	easyJet
20 Oct - 23 Oct	easyJet	direct
14 Oct - 30 Oct	easyJet
15 Oct - 04 Nov	Vueling Airlines
15 Oct - 03 Nov	Vueling Airlines
30 Oct - 03 Nov	easyJet
20 Oct - 30 Nov	easyJet
15 Oct - 01 Nov	Vueling Airlines
29 Oct - 14 Nov	Aegean Airlines
29 Oct - 05 Nov	Aegean Airlines
27 Oct - 01 Nov	easyJet
31 Oct - 03 Nov	Wizz Air Malta
29 Oct - 03 Nov	SKY express

Also check the deals for one-way flights from Athens to Lisbon in October.

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 October from $121

Return flights