I am trying to get info on booking the following:
16 October - from Mykonos to Athens
I used http://www.openseas.gr/ and see that on 13 October, there is only 1 ferry showing service on SeaJet.
On 16 October I see 1 ferry to Piraeus on Blue Star and 3 to Rafina on Fast Ferries  and Golden Star. Schedule wise, I prefer the Fast Ferries departure times over Gold Star.
1.Will more ferry show up on the schedule closer to dates of travel? If so, when? OR are these likely to be the only ferries due to it being past prime season? If there will be other ferries, how far out will they show up in schedule - 60 days?
2. Do I need to book now or can I wait until we are in Santorini and Mykonos? I have read some not so favorable posts here about Sea Jet but if they are the only ones doing the ferry in October, I guess there isn't a choice.
3. Ticket class - is the extra 5 euros or so per ticket worth the cost for better ticket? I will need 2 tickets.
Thanks in advance for you help figuring this out.