Trying to help somebody to travel from Vienna to BUD airports.
Thats Easy!
1) From VIE take the Bus to "Wien Meidling" ->
http://www.postbus.at/_downloads/Flu...ehrsspinne.pdf
2) From Meidling zu Budapest the Railhjet ->
https://ticketing.oebb.at/inet/pub/en/ticket
You can save money when you buy the Ticket in Advance!