Update. We just came back from our beach vacation. I managed to find large clear heavy duty trash bags. I was able to fit all three boards together comfortably in one bag. We had the gate agent look at the bag to make sure they would accept it-- and it turns out it was no problem. We took SW so we had no worries if we needed to separate them into a few bags (and of course no extra baggage fees

). Thanks to those who mentioned looking at SW policy on sporting equipment. Lo and behold they had info on boogie boards. I would never have assumed that, so I guess I am not the only person to bring them on vacation.

We had a great time using the boogie boards !!!