Are there nonstop flights from Rio de Janeiro (SDU) to Boston (BOS)?

No. The fastest connection is via São Paulo, about 10h 30m of total flying time.

What is the fastest connection from Rio de Janeiro (SDU) to Boston (BOS)?

via São Paulo ≈ 10h 30m (estimated flying time, excluding layovers).

Santos Dumont Airport (SDU) to Boston Logan International Airport (BOS)・7,801 km

No nonstop flights. The fastest connection is via São Paulo (GRU), about 10h 30m of flying time (layover not included).

None.

1 one-stop options, sorted by estimated flying time. Tap one to see the airlines on each leg and booking links.

Times are estimated from distance. Check schedules, frequency and availability with the airline or a booking site.