The cheapest way in. Nothing listed is quicker.
City Airport Train
CAT · CAT, currently operated as a coach by Blaguss ReisenPickup, hours & luggage
Boards at. Coach stands outside the terminal, not the station
EUR 14.90 one way and EUR 24.90 return, unchanged even though the service is currently a bus rather than a train. That is roughly three times the ordinary VOR fare for the same corridor.
Luggage. Hold luggage carried; city check-in is suspended for the duration.
Hours. It runs 06:07 to 23:37 — a shorter day than either ordinary train, and it covers none of the night. The operator states 16 minutes and the airport states 21; while it is running as a coach neither is a train time.