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

Return flights

17 May - 28 May	Ryanair
17 May - 20 May	Ryanair
17 May - 18 May	Ryanair
17 May - 19 May	Ryanair
17 May - 02 Jun	Ryanair
17 May - 06 Jun	Ryanair
17 May - 26 May	Ryanair	direct
17 May - 20 May	Ryanair	direct
17 May - 23 May	Ryanair	direct
17 May - 25 May	Ryanair	direct
17 May - 19 May	Ryanair	direct
17 May - 04 Jun	Ryanair	direct
17 May - 22 May	Ryanair	direct
17 May - 02 Jun	Ryanair	direct
17 May - 03 Jun	Ryanair	direct
21 May - 09 Jun	Ryanair
21 May - 10 Jun	Ryanair
21 May - 02 Jun	Ryanair
21 May - 06 Jun	Ryanair
14 May - 02 Jun	Ryanair

Also check the deals for one-way flights from Rome 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 Rome to Lisbon in May from 106€

Return flights