Hi
I'll be travelling Europe with an Osprey 65 litre backpack and will be taking six flights: To and from Paris and round trip from Rome to athens, round trip from Athens to an island. I've heard that backpacks can get damaged when they are checked due to the loose straps getting caught up on something. I have checked out backpack cases used for checking them on planes, however they seem bulky and I wouldn't want to carry it around with me, taking up valuable backpack space.
I'll be travelling with Air Canada to and from Europe and I know they will give you thick plastic to wrap up the backpack, but I'm not sure what, if anything, will be available once I'm in Europe. Any suggestions are appreciated!