Festpreis (fixed price) is the alternative to the standard taxi tariff (Taxameter) — instead of starting a meter and accumulating cents per minute and metre, we agree a single price up-front. You see it for your exact address and Stuttgart Airport (or vice versa) before you book, and it is locked the moment you confirm.
For airport transfers the value is predictability: the taximeter keeps running every minute spent in B27 traffic and only settles at the destination — so its total swings with the day. The fixed price removes that variance. You see one number when you book, and you pay exactly that number — no surge, no surprises, whatever the traffic.
We don't play games with surge pricing — every customer who books the same route at the same time sees the same price, regardless of how busy our dispatch is. Traffic, detours, night hours or the airport itself do not change it.