Lugano to Davos: Alpine Road Trip Guide via San Bernardino

The drive from Lugano to Davos covers 285 kilometers (177 miles) and takes approximately 3.5 to 4.5 hours without major traffic. This route crosses the Swiss Alps via the A2 motorway up to Bellinzona, then continues on the A13 through the San Bernardino Pass tunnel. The road network is well-maintained, but winter conditions can significantly affect travel times.

The San Bernardino Pass (Passo del San Bernardino) opened as a road pass in 1821, and the 6.6 km tunnel was completed in 1967. It connects the canton of Ticino with Graubünden, offering a direct link between the Italian-speaking and Romansh-speaking regions. The tunnel eliminates the need to traverse the summit at 2,066 meters, but in winter, the pass road is often closed.

The A2 and A13 are Swiss motorways with excellent surfaces, barriers, and lane marking. The San Bernardino Tunnel has a speed limit of 100 km/h and is monitored. Winter requires winter tires (legally mandatory in conditions) and chains may be needed on the pass road. Avalanche danger is managed with barriers.

• Family: Bellinzona castles offer interactive exhibits; Swissminiatur in Melide (south of Lugano) is a large miniatures park – a great starter stop.
• Pet-friendly: Most rest stops allow dogs on leash; the Splügen village has a dog-friendly meadow. The San Bernardino tunnel does not require pet restrictions, but keep dogs comfortable.
• Rest zones: A13 has service stations at Bellinzona Sud, Roveredo, and San Bernardino (with a restaurant and large parking). Plan a 15-minute break every 2 hours. The village of Splügen has a picnic area by the river.
• Hidden off-route spots: From Bellinzona, detour 15 minutes to the Verzasca Valley (crystal-clear river and contra dam); from Splügen, drive 10 minutes to the Viamala gorge viewpoint.

The best time for this drive is June to September when mountain roads are snow-free. October can have stunning fall colors. Winter offers snowy landscapes but requires careful driving. Check how to find the best stops and hidden gems between cities for more tips. Allow at least one full day for the trip to enjoy all stops.

The entire route uses Swiss motorways requiring a vignette (CHF 40 for 2025, valid 14 months from December 1). The A2 and A13 are toll-free aside from the vignette. Fuel prices average CHF 1.85/liter, with cheaper options in Ticino (e.g., Lugano) than in Graubünden. A typical car consumes about 25 liters for the 285 km, costing around CHF 46.60.

• Fuel stations: Coop Pronto in Bellinzona, Agip in Roveredo, BP in Splügen (expensive), Migrol in Chur.
• Electric vehicle charging: Fast-chargers along A13 at San Bernardino junction (Ionity) and Chur (Tesla Supercharger).
• Tunnel toll: The San Bernardino Tunnel is free (part of A13).
• Time variance: Winter conditions can add 30-90 minutes; check road conditions on Viamala's website.

For budget planning, factor in a lunch stop (CHF 20-30 per person) and potential coffee breaks. The how to find the best stops and hidden gems between cities approach can save money by detouring to local villages.

The route transitions from the subalpine lakes of Lugano (273 m) to the high alpine valley of Davos (1,560 m). The first section along Lake Lugano and Lake Maggiore offers views of steep vine-covered slopes. The A2 climbs to Bellinzona (230 m), a UNESCO World Heritage site since 2000 for its three castles: Castelgrande, Montebello, and Sasso Corbaro.

• Natural highlights: The Moesa Valley after San Bernardino features gorges and waterfalls; the Viamala gorge near Splügen is a must-see.
• UNESCO: Bellinzona castles are a 1-hour stop; wander through the old town's covered alleys.
• Local commerce: In Bellinzona, shop for Ticinese salami and Merlot wine; in Splügen, try Viamala cheese at the local dairy.
• Best stops Lugano to Davos: Bellinzona castles, San Bernardino historic hospice (if pass open), Splügen village, and Landwasser viaduct viewpoint.

Beyond Chur, the road climbs the Schanfigg valley. The route passes through villages like Langwies and reaches the Landwasser viaduct (a UNESCO World Heritage railway site) – a short detour to Filisur offers the classic view. The final stretch descends into the Davos valley, surrounded by the peaks of the Albula Alps.