I have varied experience shipping and traveling with my bike as I go from Virginia to Colorado every summer. I have shipped UPS (not good!) & FedEx (a little better), and finally purchased a hard case - the one from Performance. The price was right and the case has survived plane travel with no problem. However, the Performance case does not have outside straps or handles except on the end. It is awkward to pick up and load into a car or truck because of that. The rollers and handle on the end are great. If I had to do it over, I would look for a case with handles on the sides, too.
I have flown on both United and Frontier with the bike. Frontier is GREAT to work with and the charge is $50. No comment on United...
"When I'm on my bike I forget about things like age. I just have fun." Kathy Sessler
2006 Independent Fabrication Custom Ti Crown Jewel (Road, though she has been known to go just about anywhere)/Specialized Jett