I have been traveling for years with dive gear and have had absolutely no problem carrying on my gear. I have the Aqua Lung dive bag that can be worn as a large backpack. I don't have any little travel BCD either (Oceanic Excursion BCD). I carry on a full size BDC, full size fins, mask, reg set, dive boots and wet suit and have NEVER been stopped or asked about it by airline personnel. I'm able to stuff it in an over head bin no problem.
Now if the OP is asking if it's possible to carry on all the dive gear AND all of the rest of his clothes, etc., I would say that might be difficult. But as I mentioned before, I HAVE NEVER HAD A PROBLEM CARRYING ONTO THE AIRPLANE MY DIVE BAG WITH ALL OF MY DIVE GEAR. Probably close to 20+ flights over the past couple of years.
Joe - -
Now if the OP is asking if it's possible to carry on all the dive gear AND all of the rest of his clothes, etc., I would say that might be difficult. But as I mentioned before, I HAVE NEVER HAD A PROBLEM CARRYING ONTO THE AIRPLANE MY DIVE BAG WITH ALL OF MY DIVE GEAR. Probably close to 20+ flights over the past couple of years.
Joe - -