B RNAV
Basic Area Navigation
BAR
Board of Airline Representatives
BARO
Barometric indication, setting or pressure
BC
Back Course
BCBP
Bar Coded Boarding Passes
BCRS
Back Course
BDI
Bearing Distance Indicator
BFH
Big F Hammer
BG
Board of Governors (IATA)
BGAN
Broadcast Global Area Network
BITA
Bilateral Interline Traffic Agreement