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

Return flights

02 Dec - 15 Dec	Air China
02 Dec - 19 Jan	Air China
15 Dec - 29 Jan	LATAM Airlines Group
09 Dec - 28 Dec	Air China
09 Dec - 08 Jan	Air China
02 Dec - 04 Jan	Air China
02 Dec - 25 Jan	Air France
09 Dec - 07 Jan	Air China
09 Dec - 05 Jan	Air China
06 Dec - 08 Jan	Air China
22 Dec - 29 Dec	Air China
16 Dec - 15 Jan	Air China
23 Dec - 26 Jan	Air China
08 Dec - 29 Dec	Air France
07 Dec - 29 Dec	Air France
01 Dec - 11 Dec	Qatar Airways
05 Dec - 29 Dec	Air France
01 Dec - 29 Dec	KLM
08 Dec - 20 Dec	Qatar Airways
17 Dec - 24 Dec	Qatar Airways

Also check the deals for one-way flights from Sao Paulo to Bangkok 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 Sao Paulo to Bangkok in December from $1195

Return flights