Big_MtnBoots weigh a lot. Carry them on.
Big_MtnAlso, if you must put them in your bag, take them out when they weigh the bag at the ticket counter and at some airports (it works great at PDX) you have to take the bag over to an oversize baggage area and then when you go there put your boots back in.
SkiBum.Just carry your skis onto the plane. Stick them in the isle n