AirHint found the following cheapest return flights from Rio De Janeiro (GIG) to Porto (OPO) in May 2026 (see full year).

Return flights

04 May - 18 May	Iberia
13 May - 03 Jun	Iberia
29 May - 05 Jun	Iberia
06 May - 18 May	Iberia
08 May - 22 May	Iberia
08 May - 12 Jun	Iberia
06 May - 11 May	TAP
06 May - 20 May	TAP
05 May - 09 Jun	TAP
28 May - 11 Jun	TAP
04 May - 01 Jun	TAP
11 May - 22 Jun	Iberia
04 May - 18 May	TAP	direct
11 May - 01 Jun	TAP	direct
18 May - 01 Jun	TAP	direct
15 May - 25 May	Iberia
24 May - 11 Jun	GOL Linhas Aéreas
10 May - 31 May	TAP
11 May - 21 May	Iberia

Also check the deals for one-way flights from Rio De Janeiro 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.

Book a cheap hotel in Porto

Cheap car rent in Porto

Cheapest return flights from Rio De Janeiro to Porto in May from $764

Return flights