Originally Posted by
eigenvector
Your best bet would trying to buy some in the airside area of the airport (from a restaurant, perhaps) and carrying onboard with you.
Placing any carbonated beverage in the cargo hold of an airplane is likely to result in trouble either from the pressure difference (lower ambient pressure increases the forces on the can's walls) or freezing.
False, the cargo area is in the same pressurized area as the cabin. My friend likes to bring wine for clients pretty much every trip. Been a complete non issue for him. I live at an altitude similar to what airplanes pressurized to, do you think they make special carbonated beverages for us?
For the OP, I would do the plastic option, and pack it in the middle of the bag.