Cheapest return flights from Chicago to Sao Paulo in September from 442€

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

Return flights

09 Sep - 16 Sep Spirit Airlines
15 Sep - 29 Sep Spirit Airlines
08 Sep - 15 Sep Spirit Airlines
11 Sep - 15 Sep Spirit Airlines
11 Sep - 16 Sep Spirit Airlines
20 Sep - 27 Sep Spirit Airlines
04 Sep - 14 Sep Spirit Airlines
05 Sep - 14 Sep Spirit Airlines
05 Sep - 13 Sep Spirit Airlines
04 Sep - 28 Sep Frontier Airlines
23 Sep - 07 Oct United direct
17 Sep - 01 Oct United
18 Sep - 02 Oct United
22 Sep - 06 Oct United
29 Sep - 13 Oct United
30 Sep - 14 Oct United
25 Sep - 09 Oct United
24 Sep - 08 Oct United
20 Sep - 04 Oct United direct
28 Sep - 12 Oct United direct

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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