Does anyone know if Olympic allow you to check in the night before your flight? We arrive into the airport on an Aegean flight from Mykonos at around 9.00pm, and are staying at the hotel at the airport simply for convenience. We then have a 7.00am flight back to London the next morning. It would be great to be able to check in the night before but I don't know if this is possible or not. Otherwise how late do you think we can leave it to go over to the terminal, would 6am be ok?