I have heard of a few riders doing this so I thought I would give it a shot. Basically its using a Maxfli Golf Bag as a bike bag instead of your conventional Bike Bag.

Its has so many benefits, its allot smaller than a normal Bike Bag, normal Bike Bikes are designed to fit large Bikes like Mountain Bikes and Road Bikes, these Maxfli bags fit BMX's perfectly, nice and tight. They are also well padded, easy to carry, and have wheels for easy transport. All you need to do is remove your wheels, handlebars and pedals.

The best thing about the whole deal is that the Airline will think you got a stack of Golf Clubs... not a BMX!

Easy travelling!