Sometime this last year the major airlines changed their oversize freebie for military (my kid, I pay). I am complaining about the change, not their right to do it.
Weird though. They went from std 62" to 80" is free for military. Every airline varies, so a lot of reading.
United - on orders - Up to 115.0 linear inches (292cm) L + W + H
Not on orders - 62"
"On orders" is also a tricky.
So now I got to find smaller bags the existing were fee free.
https://postcarry.co/products/transfer-case