Originally Posted by
Fabo.sk
Normally Railjets also go to the airport... not sure why not now.
Maybe there is limited service due to works west of Salzburg. Instead there seem to be this "D" trains that go to Wien Hbf and losely connect to the railjets.
Be aware that the high-speed railway line to the west from Vienna is affected after the last flooding. It should be operational from the 15th of December.
Until that the timetable is messed up. Infos in German:
https://www.oebb.at/de/neuigkeiten/unwetterwarnung