Two extra American airways have joined United and Delta in banning the transport of searching trophies.
US Airways and American Airways have now adopted the coverage, prompted by on-line worldwide outrage over the killing of Cecil the lion.
In addition to lions the ban covers leopards, elephants, rhinos and buffalos.
Public stress on the airways grew when a Delta buyer began petition on-line calling on the airline to cease delivery wildlife trophies. Round 400 000 folks signed it.