Fazenda Bela União Airport is a small private airstrip located near Chupinguaia, a municipality in the state of Rondônia, Brazil. It carries the ICAO designator SNU3 and has no assigned IATA code, indicating it does not handle scheduled commercial passenger services. The airstrip primarily serves agricultural and general aviation purposes, consistent with the fazenda (farm or ranch) designation in its name. Such facilities are common in the Brazilian interior, supporting private aircraft operations for landowners and rural businesses in remote areas of the Amazon region.