AirHint found the following cheapest return flights from Rome (CIA) to Porto (OPO) in May 2026 (see full year).

Return flights

03 May - 07 May	Ryanair
07 May - 12 May	Ryanair
05 May - 12 May	Ryanair
11 May - 13 May	Ryanair
12 May - 13 May	Ryanair
05 May - 06 May	Ryanair
11 May - 12 May	Ryanair
05 May - 07 May	Ryanair
11 May - 15 May	Ryanair
18 May - 20 May	Ryanair
31 May - 04 Jun	Ryanair
30 May - 10 Jun	Ryanair
31 May - 03 Jun	Ryanair
30 May - 04 Jun	Ryanair
28 May - 02 Jun	Ryanair
30 May - 03 Jun	Ryanair
31 May - 02 Jun	Ryanair
25 May - 02 Jun	Ryanair
30 May - 02 Jun	Ryanair
29 May - 02 Jun	Ryanair

Also check the deals for one-way flights from Rome to Porto 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 Porto in May from $160

Return flights