For what it's worth, I flew yesterday from Spokane to Baltimore (connecting in Minneapolis) with six bottles of wine from Walla Walla. In the past, I'd always lugged them on board with me but with that option gone, I bought a shipping box from a winery with styrofoam slots for six bottles and checked it through. It seemed well-protected and insulated. and everything came out fine -- no breaks, no spills, no sign of too much heat (despite the 96 degree temperature in Spokane). Even if they change the rules to allow bottles on board, I'd probably go this route again. Easier on the back and shoulders, especially when you have to change planes that are half-a-mile away.