If you are traveling with Baleària, you should bear in mind that you won’t be able to go through the online check-in process if you are entitled to a discount. This is because you need to present proof of eligibility for the discount at the ticket office, which is usually located at the port of departure. If you are not able to check in online, there is no need to worry, as there is a terminal with a check-in desk at all ports.