Italy to Athens

Ruttweiler, we are really sorry for a late answer, were traveling, so had no possibility to answer your question earlier, we apologize

Regarding Italy to Athens, then obviously you have more or less three options to consider: a) catch a direct/with change flight from Rome to Athens by Aegean or EasyJet, as of now ticket fares aren't extremely good, but it's hard to wait much better one for the peak season; b) it is as well possible to fly only part of the route, like Rome to Thessaloniki with cheaper low-cost RyanAir, while from Thessaloniki simply to take a train to Athens (from 9 euro if purchased in advance) or from Rome to Corfu by Aegean (for Aug. 5 they have an ok price) and then ferry to the mainland and train/bus from there to Athens; c) and probably most fun, however time consuming option, is to get by train from Rome to Bari or Brindisi and from there use the ferry to Greek Patras. If the weather is good (should be during August), then the journey is really nice. Going from Patras to Athens is rather easy and cheap by train or bus

If neither of the above seems much appealing to you, then it is also possible to consider going all the way by land via Balkans, but it's long and at the end not very cheap journey, so makes sense only if you have time and want to see something interesting on the way