The cheapest way in. Nothing listed is quicker.
S-Bahn S2 or S3
S2S3 · S-Bahn Stuttgart (DB Regio), VVS tariffPickup, hours & luggage
Boards at. Station Stuttgart Flughafen/Messe, at Terminals 1–3
A two-zone single is EUR 4.90 at the machine or from a driver, EUR 4.45 in the app (child 6–14: EUR 2.10 / EUR 1.99; under 6 free). The GruppenTagesTicket for two zones is EUR 18.90, or EUR 17.80 in the app, for up to five people until 07:00 next morning.
Luggage. A commuter train with standing room by the doors.
Hours. Monday to Friday from 05:08, last 00:38. Friday and Saturday nights the S2 carries on hourly all night (01:08, 02:08, 03:08, 04:08). Every 15 minutes most of the day; every 30 minutes early, late and on Sunday evenings.