Cheapest return flights from Washington to Sao Paulo in March from $480

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

Return flights

20 Mar - 24 Mar Copa
16 Mar - 23 Mar Copa
18 Mar - 23 Mar Copa
20 Mar - 29 Mar Copa
17 Mar - 22 Mar Copa
11 Mar - 29 Mar Frontier Airlines
21 Mar - 28 Mar Copa
19 Mar - 28 Mar Copa
19 Mar - 22 Mar Copa
20 Mar - 22 Mar Copa
31 Mar - 10 Apr Copa
27 Mar - 03 Apr Allegiant Air

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

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