Are there nonstop flights from Rio de Janeiro (SDU) to São Luís (SLZ)?

No. The fastest connection is via Belo Horizonte, about 3h 40m of total flying time.

What is the fastest connection from Rio de Janeiro (SDU) to São Luís (SLZ)?

via Belo Horizonte ≈ 3h 40m, via Brasília ≈ 3h 54m, via Salvador ≈ 3h 59m (estimated flying time, excluding layovers).

Santos Dumont Airport (SDU) to Marechal Cunha Machado International Airport (SLZ)・2,263 km

No nonstop flights. The fastest connection is via Belo Horizonte (CNF), about 3h 40m of flying time (layover not included).

None.

6 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.