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

Return flights

18 Sep - 25 Sep	Spirit Airlines
18 Sep - 15 Oct	Spirit Airlines
24 Sep - 03 Oct	Spirit Airlines
04 Sep - 08 Sep	Spirit Airlines
01 Sep - 07 Sep	Spirit Airlines
30 Sep - 04 Oct	Spirit Airlines
25 Sep - 02 Oct	United	direct
25 Sep - 09 Oct	United	direct
14 Sep - 21 Sep	United	direct
18 Sep - 25 Sep	United	direct
18 Sep - 29 Sep	United
22 Sep - 05 Oct	United	direct
29 Sep - 10 Oct	United
04 Sep - 17 Sep	Spirit Airlines
10 Sep - 17 Sep	United
03 Sep - 18 Sep	United
03 Sep - 19 Sep	United
27 Sep - 11 Oct	Delta
28 Sep - 04 Oct	United	direct
30 Sep - 04 Oct	United	direct

Also check the deals for one-way flights from Newark 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.

Book a cheap hotel in Sao Paulo

Cheap car rent in Sao Paulo

Cheapest return flights from Newark to Sao Paulo in September from 402€

Return flights