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

Return flights

08 Dec - 21 Dec	Air China
02 Dec - 07 Jan	Air China
02 Dec - 10 Dec	Air China
02 Dec - 03 Jan	Air China
02 Dec - 14 Dec	Air China
08 Dec - 20 Dec	Air China
08 Dec - 18 Dec	Air China
01 Dec - 10 Dec	Air China
08 Dec - 15 Dec	Air China
05 Dec - 29 Dec	Air China
01 Dec - 13 Dec	Air China
08 Dec - 08 Jan	Air China
01 Dec - 20 Dec	Air China
05 Dec - 03 Jan	Air China
06 Dec - 08 Jan	Air China
06 Dec - 03 Jan	Air China
22 Dec - 21 Jan	Air China
23 Dec - 14 Jan	Air China
30 Dec - 26 Jan	Air China
22 Dec - 08 Jan	Air China

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 958€

Return flights