FS2004 NHT Linhas Aereas Winter 2009 Flight Plans. NHT Linhas Aereas is a small airline based at Salgado Filho International Airport It operates regional services to 16 cities in three Brazilian states. This winter 2009-2010 flight plan includes 218 weekly flights tested (CH-Aviation, Flightstats) and fully functional. Developed using MRAI Compiler. By Vuqar Quliyev.