I'm currently enjoying cheap wine with some friends in Saloniki. If you get a cheap ticket you can go to Volos from here with the bus (it is much more comfortable than the train). From the airport to the bus station you will have to travel to the other side of the city, which can take quite some time (there will be a munical bus numbered 78, which will go to both the bus (ΚΤΕΛ) and train station for 1€). Taxis are a bit expensive from the airport, but it's still affordable here. Here is the timetable for the munical bus: http://www.oasth.gr/routes/route_eng.php?route_num=78 The timetables for the ΚΤΕΛ busses will hopefully be updated in time: http://www.ktelvolou.gr/dromologia_ath_ther.html
I'm going to start studying in Germany in a few weeks, so I'm not sure if I'm able to come. Germans from NRW should try to get a germanwings ticket fast (they're still quite cheap; got one for under 100€). Perhaps some other guy could tell how to get to Volos from Athens...
