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

Return flights

12 May - 16 May	easyJet
31 May - 09 Jun	SKY express
22 May - 09 Jun	SKY express
20 May - 09 Jun	SKY express
13 May - 18 May	Vueling Airlines
13 May - 19 May	Vueling Airlines
06 May - 19 May	SKY express
06 May - 18 May	SKY express
06 May - 07 May	SKY express
02 May - 09 May	Air Serbia
13 May - 17 May	SKY express
06 May - 12 May	easyJet
06 May - 17 May	SKY express
31 May - 16 Jun	SKY express
27 May - 09 Jun	SKY express
31 May - 08 Jun	SKY express
22 May - 08 Jun	SKY express
20 May - 08 Jun	SKY express
30 May - 06 Jun	easyJet
28 May - 02 Jun	Air Serbia

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

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 May from $181

Return flights