AirHint found the following cheapest return flights from Los Angeles (LAX) to Sao Paulo (GRU) in September 2025 (see full year).

Return flights

15 Sep - 24 Sep	Copa
05 Sep - 09 Sep	Copa
04 Sep - 09 Sep	Copa
17 Sep - 24 Sep	Copa
19 Sep - 26 Sep	Copa
01 Sep - 04 Sep	Copa
16 Sep - 26 Sep	Copa
14 Sep - 24 Sep	Copa
12 Sep - 15 Sep	United
15 Sep - 22 Sep	United
06 Sep - 01 Oct	United
17 Sep - 01 Oct	United
25 Sep - 02 Oct	LATAM Airlines Group
26 Sep - 03 Oct	LATAM Airlines Group
30 Sep - 07 Oct	Copa
29 Sep - 08 Oct	Delta
19 Sep - 03 Oct	LATAM Airlines Group

Also check the deals for one-way flights from Los Angeles to Sao Paulo 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 Los Angeles to Sao Paulo in September from 416€

Return flights