Online check-in allows passengers to download their boarding passes to a computer or mobile device. It will often allow travelers to select their seats, review upgrade options, pay for baggage, etc.

It is a good idea to visit your airline’s website to review their online resources in preparation for your trip as well as to use online check-in, if available, as it might help reduce the time you spend in lines at the airport. [Many travelers find it a better experience to complete the check-in process and get their boarding passes in the comfort of their homes or hotel rooms.]