Cheapest return flights from Washington to Sao Paulo in March from $561

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

Return flights

06 Mar - 15 Mar Avianca
20 Mar - 22 Mar Avianca
26 Mar - 02 Apr Air Canada
06 Mar - 14 Mar Avianca
20 Mar - 31 Mar Avianca
19 Mar - 29 Mar Air Canada
06 Mar - 15 Mar United direct
20 Mar - 22 Mar United direct

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

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