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

Return flights

11 Dec - 14 Dec	JetSmart
01 Dec - 12 Dec	Flybondi
30 Dec - 06 Jan	Flybondi
20 Dec - 28 Jan	Sky Airline
25 Dec - 01 Jan	JetSmart
07 Dec - 14 Dec	JetSmart
20 Dec - 30 Dec	Sky Airline
30 Dec - 30 Jan	Flybondi
11 Dec - 14 Dec	GOL Linhas Aéreas	direct
25 Dec - 01 Jan	GOL Linhas Aéreas	direct
29 Dec - 30 Jan	Flybondi
07 Dec - 14 Dec	GOL Linhas Aéreas	direct
30 Dec - 06 Jan	GOL Linhas Aéreas	direct

Also check the deals for one-way flights from Mendoza 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 Mendoza to Sao Paulo in December from 279€

Return flights