Cheapest return ORD–GRU flights, August

AirHint found the following cheapest return flights from Chicago (ORD) to Sao Paulo (GRU) in August 2026 (see full year).

Return flights

15 Aug - 27 Aug Arajet
17 Aug - 27 Aug Frontier Airlines
18 Aug - 25 Aug Frontier Airlines
18 Aug - 28 Aug Frontier Airlines
15 Aug - 21 Aug Arajet
19 Aug - 02 Sep Frontier Airlines
07 Aug - 14 Aug Arajet
07 Aug - 06 Sep Arajet
22 Aug - 01 Sep Frontier Airlines
13 Aug - 24 Aug Frontier Airlines
17 Aug - 29 Aug Copa
18 Aug - 25 Aug United direct
15 Aug - 21 Aug United direct

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

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