Join Date: Nov 2013
Location: LAX, LGB, SNA
Programs: AA EXP OWE, DL DM ST+, AS MVPG, UA, BA, WN CP, Hyatt E, Ritz Plat, HH GM
Posts: 3,185
No problem taking a ball on, inflated or deflated. Deflated is best if you're not planning on playing with it on board and immediately post flight.
Have taken ball on board.