Originally Posted by
Aviatrix
For Austria your passport needs to be valid three months beyond the date of intended departure. As long as you have that the airline has no right to deny you boarding.
However, many airlines seem to have a blanket rule that six months' validity is needed - even sometimes when the only validity that is required is that the passport is still valid on the day of arrival at the destination.
The OP can try to argue the toss, although it's not clear whether that would be a successful strategy or not.
However, none of this answers the OP's question...
btw, welcome to FlyerTalk,
limpitip.