Will airlines allow charged air cylinders...
Will airlines allow charged air cylinders onboard, as either checked baggage or as carry-on?
no you can't have them in your carry-on and you might run into problems even checking them in. the best way is to mail them to your destination or just buy them when you get there from a ski shop.
I have flown from the middle east to the US via Germany and they allowed me to have inflatable life jackets in my checked bag (had CO2 canisters attached). When I got home, I found a note in my checked luggage stating that they inspected my bags. I am sure they were just taking extra precautions to make sure that I wasn't carrying some sort of explosive. Just check with the airlines first if any doubts.