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

Return flights

25 May - 01 Jun	Air Europa
11 May - 25 May	Air Europa
25 May - 31 May	Air Europa
31 May - 20 Jun	Air Europa
10 May - 24 May	KLM
25 May - 13 Jun	Air Europa
24 May - 13 Jun	Air Europa
08 May - 17 May	Air Europa
17 May - 15 Jun	Air Europa
31 May - 12 Jun	Air Europa
24 May - 12 Jun	Air Europa
04 May - 14 May	LATAM Airlines Group
10 May - 26 May	KLM
10 May - 23 May	Air Europa
03 May - 17 May	Air Europa
19 May - 25 Jun	KLM
05 May - 19 May	KLM
03 May - 12 May	KLM
24 May - 05 Jun	GOL Linhas Aéreas
29 May - 07 Jun	Air Europa

Also check the deals for one-way flights from Sao Paulo 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 Sao Paulo to Porto in May from $903

Return flights