AirHint found the following cheapest return flights from Bilbao (BIO) to Sao Paulo (GRU) in December 2025 (see full year).

Return flights

04 Dec - 09 Dec	TAP
01 Dec - 09 Dec	ITA Airways
04 Dec - 10 Dec	Vueling Airlines
06 Dec - 10 Dec	LATAM Airlines Group
10 Dec - 12 Dec	Air Europa
13 Dec - 24 Jan	Iberia
19 Dec - 31 Jan	Iberia
16 Dec - 28 Dec	easyJet
29 Dec - 10 Jan	TAP
15 Dec - 01 Jan	LATAM Airlines Group
03 Dec - 12 Jan	Air Europa
20 Dec - 01 Jan	ITA Airways
19 Dec - 14 Jan	ITA Airways
23 Dec - 02 Jan	Vueling Airlines
12 Dec - 09 Jan	easyJet
19 Dec - 04 Jan	LATAM Airlines Group

Also check the deals for one-way flights from Bilbao to Sao Paulo in December.

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 December from 560€

Return flights