Cheapest return flights from Chicago to Sao Paulo in March from 434€

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

Return flights

10 Mar - 17 Mar Frontier Airlines
01 Mar - 10 Mar Frontier Airlines
04 Mar - 11 Mar Frontier Airlines
02 Mar - 06 Mar Avianca
18 Mar - 31 Mar Frontier Airlines
31 Mar - 14 Apr Frontier Airlines
06 Mar - 16 Mar Frontier Airlines
03 Mar - 20 Mar Spirit Airlines
05 Mar - 25 Mar Frontier Airlines
08 Mar - 15 Mar Spirit Airlines
11 Mar - 16 Mar GOL Linhas Aéreas
31 Mar - 10 Apr Copa
25 Mar - 06 Apr Copa
19 Mar - 01 Apr Copa
21 Mar - 21 Apr Arajet
21 Mar - 21 Apr United direct
26 Mar - 06 Apr Frontier Airlines
08 Mar - 08 Apr United direct
26 Mar - 05 Apr Frontier Airlines
26 Mar - 04 Apr Frontier Airlines

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

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