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

Return flights

06 May - 11 May	Ryanair
14 May - 20 May	Ryanair
12 May - 20 May	Ryanair
07 May - 11 May	Ryanair
05 May - 13 May	Vueling Airlines
12 May - 13 May	Vueling Airlines
14 May - 19 May	Air Serbia
14 May - 18 May	Ryanair
11 May - 13 May	Ryanair
09 May - 13 May	Wizz Air UK
29 May - 05 Jun	Air Serbia
30 May - 04 Jun	Air Serbia
31 May - 16 Jun	SKY express
31 May - 17 Jun	SKY express
28 May - 16 Jun	Vueling Airlines
28 May - 17 Jun	Vueling Airlines
31 May - 10 Jun	SKY express
19 May - 07 Jun	Vueling Airlines
19 May - 02 Jun	Vueling Airlines
31 May - 11 Jun	SKY express

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 144€

Return flights