Hi tacogirl... Yes, I can understand not wanting someone to show up at the airport only to find out there that they can't take it with them. The Signature Vacations website has some information about oversized things like sporting equipment, etc... If they only charge $100 to ship a windsurf board or a kayak I can't imagine it would cost that much extra to ship an odd sized box. There is an email address on the actual Skyservice website that you can use to email them any specific baggage questions (pre-flight_inquiries@skyservice.com)... if you can give them the exact weight and dimensions of the package, they should be able to tell you if they'll take it and what, if any, over-size/weight charges might apply.