Cootamundra's location midway on Sydney-Melbourne railway line made it the final stop on the 1934 UK-Australia air mail service. Flying mail direct to these major cities was seen as a threat to the railways, which were owned by the states and unionised. Butler Air Transport DH84s picked up the mail from Qantas at Charleville. The arrival of Empire flying boats on the route in 1938 ended Cootamundra's (and Charleville's) role.

VH-TAV was reregistered VH-SBJ in 1961 for operations on TAA's Sunbird Services in Papua New Guinea.