AirHint found the following cheapest return flights from Bilbao (BIO) to Sao Paulo (GRU) in May 2026 (see full year).

Return flights

27 May - 06 Jun	Air Europa
27 May - 07 Jun	Iberia
25 May - 08 Jun	Lufthansa
26 May - 08 Jun	Lufthansa
14 May - 21 May	TAP
02 May - 15 May	Iberia
08 May - 29 May	Air Europa
30 May - 09 Jun	Iberia
02 May - 22 May	Vueling Airlines
02 May - 23 May	Iberia
01 May - 30 May	TAP

Also check the deals for one-way flights from Bilbao to Sao Paulo 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 Bilbao to Sao Paulo in May from $739

Return flights