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

Return flights

18 Mar - 25 Mar	GOL Linhas Aéreas
03 Mar - 20 Mar	GOL Linhas Aéreas
03 Mar - 17 Mar	GOL Linhas Aéreas
03 Mar - 18 Mar	GOL Linhas Aéreas
03 Mar - 19 Mar	GOL Linhas Aéreas
04 Mar - 13 Mar	GOL Linhas Aéreas
19 Mar - 01 Apr	GOL Linhas Aéreas
26 Mar - 02 Apr	Air Canada
04 Mar - 13 Mar	United	direct
16 Mar - 24 Mar	United	direct
26 Mar - 02 Apr	United	direct
18 Mar - 25 Mar	United	direct
03 Mar - 17 Mar	United	direct
19 Mar - 01 Apr	United	direct
27 Mar - 04 Apr	United

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

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 Chicago to Sao Paulo in March from $484

Return flights