Yea, definitly use a bag, but that doesn't guarantee anything. We just tried to bring a boat down from Denver and got denied even though it was in a boat bag with windsurfer stickers all over it, and no paddle to give it away. Denver is the worst place to fly out of with boats in the country! We only get kayaks on the plane about a third of the time from there. By the way the boating has been great down here in Ecuador, a little low but that should change any day. If they won't take your boat, I have lots for rent down here, including a seven 0. Just contact me at Larry@smallworldadventures.com
Good luck, see you down here.