Of course we love it when Airlines have a boards fly free policy, but for those that don't...you'll have to be a little more clever!
The Wheeled GO-LF Board bag is your best answer. It looks like a golf bag, feels like a golf bag, and flies free like a golf bag. A clean shirt and sun visor will complete your disguise for low price flying.
This board bag has a massive main compartment that will accommodate a few boards, bindings, life jackets, towels and ropes…depending on your packing skills, possibly more!