An alpine adventure for PostBus enthusiasts across two passes and through three holiday destinations in the Grisons region. When it comes to variety, the trip from Chur to Zernez via Lenzerheide and Davos is hard to beat.

The PostBus meanders through the villages of Malix, Churwalden and Parpan up to the Lenzerheide high valley. After passing the summit in Valbella, the PostBus continues along the shimmering Heidsee lake and through picturesque villages to the Landwasser Valley and to Davos. Davos has a wide variety of activities in store for you - on the lake and in the mountains, or you could visit the Kirchner Museum.

The second part of this delightful trip takes you from Davos across the Flüela Pass (2383 m). Now since the Vereina Tunnel has been completed, the Flüela Pass is open only in the summer. The mountain panorama on the last section on the way down to Susch and Zernez in the Engadine will take your breath away.

Additional information

Buy ticket

Buy your ticket from the SBB Shop or SBB Mobile app. You can also buy a ticket from the driver, at all ticket terminals, PostBus sales offices and at the counter of your nearest railway station.

Additional ticketing apps and online shops can be found in our overview.

Timetable / travel information

You will find the entire Swiss public transport timetable online here.

Timetable no. 90.183

Timetable no. 90.331

Route not open all year

Special comments:
Service between Davos and Zernez is available in the summer season


Timetable no. 90.183
for groups of 10 people and more, reservations through
Tel. +41 58 341 34 87.

Timetable no. 90.331
for groups of 8 people and more, reservations through
Tel. +41 58 341 34 88.

Bicycle transport

Bicycle transport fixtures available in/on the vehicle.
You can find more information at Biking and Postbus.

Special comments:
The transportation of bikes is restricted. There is no guarantee of transportation It is not possible to make reservations for bikes

Wheelchair accessibility

Limited wheelchair access to the postbus

Special comments:

Timetable no. 90.183
not all services are wheelchair-accessible. For information, please call +41 58 341 34 87

Timetable no. 90.331
all services are not wheelchair-accessible. For information, please call +41 58 341 34 88

Contact details


PostBus Ltd
Sales Office Chur
Gürtelstrasse 14
7003 Chur

Opening hours

Mondays through Fridays
8.00–12.00 h and 14.00–17.00 h