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 - 29 Sep	United
07 Sep - 21 Sep	United
12 Sep - 26 Sep	United
11 Sep - 19 Sep	United
16 Sep - 26 Sep	United
08 Sep - 15 Sep	Copa
12 Sep - 03 Oct	Copa
14 Sep - 05 Oct	Copa
05 Sep - 06 Sep	Copa
02 Sep - 09 Sep	Delta
05 Sep - 12 Sep	Copa
01 Sep - 08 Sep	Delta
22 Sep - 03 Oct	Copa
20 Sep - 02 Oct	Delta
21 Sep - 03 Oct	Delta
22 Sep - 06 Oct	United
30 Sep - 14 Oct	United
26 Sep - 10 Oct	United
24 Sep - 08 Oct	United
29 Sep - 13 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 417€

Return flights