I have tried searching this but couldn't find anything definitive.
I would like to send a box to from NY to UK. The dimension of the box is 66 inches (weight - 17 pounds). The official limit (on AA - not sure about all airlines) is 62 inches.
1) How strict are they if it's just a few inches over?
2) In general do they allow cardboard boxes to be checked in no problem?
Anyone with any advice?