Turn Tickets to OPEN Date (The service is only available for the route Heraklion - Milos - Piraeus)
Fill in the Booking Number and Surname of one of the passengers and proceed to the next step
can be turned to open date only two times
. Make sure you read the info about open tickets before you proceed
Be careful if you turn your tickets to OPEN you cannot cancel them and you lose your accommodation on the trip you had booked the tickets for.