Originally Posted by
RRDD
No one has mentioned the disadvantages:
* May not be able to change flights or change seats on-line after checking in.
* Imagine the chaos if everyone checked in on line. Poor home print quality, can't open airline app, phone dies, etc.
The airline I fly most regularly with allows you to cancel your online check in if you need to change flights, seats, number of bags, etc. and it is a very simple process. I know of a couple of others you can do it with to, although never had to do so with them.