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

Return flights

26 Sep - 03 Oct	United
19 Sep - 28 Sep	United
22 Sep - 07 Oct	United
21 Sep - 02 Oct	United
22 Sep - 03 Oct	United
22 Sep - 27 Sep	United
20 Sep - 23 Sep	United
20 Sep - 25 Sep	United
23 Sep - 28 Sep	United
22 Sep - 28 Sep	United
20 Sep - 07 Oct	United
28 Sep - 02 Oct	United
26 Sep - 27 Oct	United
27 Sep - 02 Oct	United
20 Sep - 27 Sep	United
28 Sep - 06 Oct	United
29 Sep - 07 Oct	United
19 Sep - 26 Sep	Delta	direct
20 Sep - 25 Sep	Delta	direct
22 Sep - 28 Sep	Delta	direct

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 414€

Return flights