Check-in at the airport using the Self Check-in, which you and your travel companions can use to check in at the airport from 24 hours to 30 minutes before the scheduled departure time of your flight.
You can check-in for your Olympic Air flight online using your computer, tablet or smartphone via the website. Online check-in saves you time as you can do it from 48 hours to 30 minutes before your flight and you have the option to choose your preferred seat and receive your boarding pass.