I once checked 5 IKEA Lack Tables from Nebraska to NY with Delta. Wrapped in most of a roll of 20 in. x 1000 ft. Stretch Wrap from Home Depot, they made the trip with only mild scratches on the two outside tables. I'd recommend using that wrap, it's similar to what you'd get from a luggage wrapping service. The check in agent may have you sign a damage waiver, but they should accept it, they've seen some strange things in their time (many from myself). Make sure to watch the size limits, when checking odd things they're much more apt to check weight and dimensions.