It is understood that at least two agencies have been approached for the proposed pitch, believed to be BGB & Associates and McCluskey & Associates International.
APRO members are due to vote at the body's AGM this week on whether or not to go ahead with the agency pitch.
APRO chairman Marie Rix, of Sri Lankan Airlines, was unavailable as PRWeek went to press, but sources close to APRO suggest the body is considering the move in a bid to 'revitalise' itself.
It is understood APRO is also considering developing closer links with its sister marcoms organisations, although speculation suggests members are divided on both the need to work closely with other bodies and to hire an external agency.
The organisation's PR is currently handled as part of the secretariat's remit, a post held by member Pauline Kirkman.
APRO members comprise around 60 airlines, 20 airports, and associated members, such as Rolls Royce.
The body is also launching its 2003/2004 annual directory this week, published by Air and Business Travel News.