All I know is the Thule Round Trip case I bought this fall, but it's been from Ohio to Texas and back, and from Ohio to Florida, via FedEx with no problem (touch wood for the next trip). It's a bit short on cushioning material though IMO, so if you go that way you'll want to have one sheet of foam for the wheels and your usual pipe insulation/bubble wrap/foam rubber to keep bits from rubbing.
It's a bit unwieldy but I doubt any hard case will be very easy to maneuver through an airport... just plan on renting a luggage cart at the airport I think. It does have wheels on the short end, which may not be apparent from the ad copy.