I got this bag for a trip to Whistler that I'm going on soon. My board is a 147 and because the sizes on here said the 146 cm bag is actually 150 in length I decided to try it. It fits in pretty perfectly, with the board (and bindings) stuffed in the bag I have room for my boots to stick in between the bindings and room on the front and back to stuff in extra clothes( Jacket, goggles,etc..) it is a somewhat tight squeeze but you can definitely fit most of your snowboard gear in this bad boy. if you have any doubt you can always get a size bigger to have extra room on the ends to stuff anything else into the bag if you're taking it on a flight.
The only con that I see is that it doesn't give a whole lot of protection to the board as there is no padding. I will be using some bubble wrap to protect my board before taking it on the plane.