Cheapest return flights from Chicago to Sao Paulo in September from 504€

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

Return flights

04 Sep - 14 Sep Spirit Airlines
01 Sep - 22 Sep Frontier Airlines
25 Sep - 29 Sep Frontier Airlines
10 Sep - 15 Sep Spirit Airlines
28 Sep - 05 Oct Spirit Airlines
06 Sep - 17 Sep Frontier Airlines
11 Sep - 18 Sep United direct
07 Sep - 21 Sep United direct
08 Sep - 22 Sep United direct
09 Sep - 23 Sep United direct
10 Sep - 24 Sep United direct
28 Sep - 12 Oct United direct
17 Sep - 01 Oct United direct
18 Sep - 02 Oct United direct
29 Sep - 13 Oct United direct
30 Sep - 14 Oct United
22 Sep - 06 Oct United direct
21 Sep - 05 Oct United
23 Sep - 07 Oct United
26 Sep - 10 Oct United

Also check the deals for one-way flights from Chicago to Sao Paulo in September.

Skyscanner

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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