It looks like you're new here. If you want to get involved, click one of these buttons!
One other thing to keep in mind is your right to bring an instrument on board rather than checking it as baggage.
About 75% they'll let you bring it on....but the problem is the other 25% of the time. If you're stuck in the boarding area without a flight case and they won't let you bring it on you have two choices:
1) Risk almost certain damage to your guitar by checking it in
2) Cancel the flight
I almost had my honeymoon canned by a bitchy airline employee who was determined to not let me take my guitar on. I finally was able to talk to a stewardess on the plane and they found a place for it. But for about an hour I thought my honeymoon was over....
It's not worth the stress...just get a good flight case!