No way you are carrying your gear on-board with you. The kiteboard itself is too big and then all all the supporting gear....Sorry gotta check it in.
Like the guy above said, check it in and tell them a fib if they ask what's inside. I usually say golfing stuff, but camping stuff works too. Goodluck!
Adrien - 773-208-3443
7,12 Epic Screamers
2014 7,9,10,12,17 Blade Triggers
2014 132x41 Axis Vanguard