If you searched for ZDT expecting an airport, here is the truth: ZDT is the booking-system code for Chur's railway station in Switzerland - there is no ZDT airport - and car rental at Chur works exactly the way that implies, with station-area offices bookable through the major brokers and Switzerland's rail-plus-car pattern doing the rest. Chur makes a superb collection point: the Graubunden capital anchors the Glacier Express and Bernina Express lines, so travellers ride in by train and drive out to the valleys - Lenzerheide 20 minutes up the hill, Flims and Laax half an hour, the Via Mala gorge south toward the San Bernardino route. Swiss rentals include the motorway vignette; in winter the fleets ride winter tyres and the passes demand them. Book the station pickup ahead - Chur offices keep business hours, not airport ones.
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