Cheapest return flights from Boston to Sao Paulo in May from $401

AirHint found the following cheapest return flights from Boston (BOS) to Sao Paulo (GRU) in May 2026 (see full year).

Return flights

06 May - 27 May Avianca
14 May - 28 May Avianca
09 May - 18 May Avianca
14 May - 28 May Delta direct
01 May - 27 May Avianca
23 May - 28 Jun Avianca
22 May - 28 Jun Delta direct
22 May - 27 Jun Copa
22 May - 27 Jun Delta direct

Also check the deals for one-way flights from Boston to Sao Paulo in May.

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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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