Are there nonstop flights from Miami (MIA) to Rio de Janeiro (SDU)?

No. The fastest connection is via Brasília, about 8h 56m of total flying time.

What is the fastest connection from Miami (MIA) to Rio de Janeiro (SDU)?

via Brasília ≈ 8h 56m, via São Paulo ≈ 9h 8m (estimated flying time, excluding layovers).

Miami International Airport (MIA) to Santos Dumont Airport (SDU)・6,732 km

No nonstop flights. The fastest connection is via Brasília (BSB), about 8h 56m of flying time (layover not included).

None.

2 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.