You can definitely fit a pair of poles in there. Can't answer your question about airline travel though, sorry.

I wouldn't use this for airline travel it's not padded and your skis may bounce around. I use mine to protect them in the back of our truck, but you never know what those TAA people do to stuff :(

Poles will fit no problem, but do not use this for airline travel, spend the extra money for a bag with padding. Both you and the airline will be happy.