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

Return flights

03 Sep - 10 Sep	Copa
08 Sep - 18 Sep	Copa
21 Sep - 03 Oct	Copa
12 Sep - 29 Sep	Copa
12 Sep - 19 Sep	Copa
17 Sep - 24 Sep	Copa
05 Sep - 19 Sep	Copa
05 Sep - 09 Sep	Copa
07 Sep - 21 Sep	United
08 Sep - 22 Sep	United
04 Sep - 18 Sep	United
10 Sep - 02 Oct	American Airlines
26 Sep - 19 Oct	American Airlines
29 Sep - 06 Oct	American Airlines
20 Sep - 02 Oct	American Airlines
27 Sep - 20 Oct	Delta
20 Sep - 03 Oct	Spirit Airlines
23 Sep - 07 Oct	United
18 Sep - 02 Oct	United
17 Sep - 01 Oct	United

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 $486

Return flights