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

Return flights

07 May - 11 May	Aegean Airlines	direct
03 May - 07 May	Aegean Airlines	direct
01 May - 06 May	SKY express	direct
13 May - 20 May	easyJet
01 May - 05 May	Aegean Airlines	direct
21 May - 25 May	easyJet
21 May - 25 May	Aegean Airlines	direct

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 $197

Return flights