AirHint found the following cheapest return flights from Sao Paulo (GRU) to Bangkok (BKK) in September 2026 (see full year).

Return flights

07 Sep - 20 Sep	Japan Airlines
07 Sep - 13 Sep	Japan Airlines
01 Sep - 08 Sep	Japan Airlines
01 Sep - 07 Sep	Air China
07 Sep - 17 Sep	Air China
03 Sep - 07 Sep	ANA
04 Sep - 17 Sep	Air China
08 Sep - 17 Sep	Air China
01 Sep - 17 Sep	Air China
18 Sep - 25 Sep	LATAM Airlines Group
21 Sep - 05 Oct	Air France
14 Sep - 20 Oct	KLM
23 Sep - 08 Oct	Qatar Airways
20 Sep - 06 Oct	Qatar Airways
22 Sep - 08 Oct	Qatar Airways
28 Sep - 12 Oct	Air France
21 Sep - 16 Oct	Turkish Airlines
01 Sep - 05 Oct	Turkish Airlines
26 Sep - 11 Oct	Air France

Also check the deals for one-way flights from Sao Paulo to Bangkok in September.

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 September from $1036

Return flights