Interlaken to Linz Road Trip Guide: Scenic Alps to Danube

Did you know that the route from Interlaken to Linz passes through the narrowest part of Switzerland at only 2 kilometers wide near Lake Brienz? This road trip of roughly 6.5 hours (600 km) takes you from the Jungfrau region to the Danube River city of Linz, crossing three countries and four distinct geographic zones.

The highway sequence begins with the A8 from Interlaken to Bern, then switches to the A1 towards Zurich, continues on the A1/A3 past St. Gallen, enters Germany on the A96, merges onto the A7 and A8 near Ulm, then follows the A93 and A3 toward Passau, and finally the A8 into Austria. The drive is a masterclass in how to find the best stops and hidden gems between cities, as covered in our guide how to find the best stops and hidden gems between cities.

Road quality is excellent throughout: Swiss and Austrian highways are smooth; German sections have occasional repaired stretches. The A96 in Germany has limited lighting at night, so high beam is essential. Toll collection is via vignettes, with no barriers except at the Passau border crossing.

For families, the Swiss Transport Museum in Lucerne (20 min detour from A2) is great. The Legoland Deutschland Resort near Günzburg (exit on A8) is a major attraction for children.

Pet-Friendly Framework

• Rest stops: Swiss Autobahnraststätte always have grassy areas for dogs.
• In Germany, the Raststätte Harthausen has a designated dog walking area.
• Pet-friendly cafe: Café Sperl in Linz allows dogs inside.

Fatigue Management and Rest Zones

• Switzerland: service area Aarebrücke near Lenzburg (quiet parking).
• Germany: Raststätte Illertal (clean toilets, coffee).
• Austria: Raststation Suben (just after border, good for naps).

Hidden off-route spots: the abandoned Kiechlersmühle mill near the A7 in Germany (5-min detour) and the ruined castle Burg Strechau near the A8 in Austria (restored, walkable).

The drive begins in the Bernese Oberland with dramatic limestone peaks and turquoise lakes. Near Interlaken, the average altitude is 570 meters. As you cross into central Switzerland, the terrain transitions to rolling hills and farmland.

By the time you reach Lake Constance (Bodensee), the landscape opens into vast orchards and vineyards. The German Allgäu region offers views of the Alps from a distance, then the Austrian Mühlviertel features gentle hills and dense forests before descending into the Danube valley at Linz.

UNESCO World Heritage Sites Along the Route

• Old City of Bern (UNESCO): a 30-minute detour from the highway, featuring medieval arcades and the Zytglogge clock tower.
• Monastery of St. Gallen (UNESCO): about 10 km from the A1 near St. Gallen, with its renowned library.
• Würzburg Residence (UNESCO): a 40 km detour from the A3, but worth it for the grand palace.
• Semmering Railway (UNESCO): 150 km detour, not recommended for this trip.

Local commerce along the route includes Swiss cheese shops in Brienz, German beer gardens near Memmingen, and Austrian pumpkin seed oil stands in the Mühlviertel. At the Raststätte Würmsee in Germany, you can buy crystal from the Bavarian Forest.

Fuel costs along this route range from €60–80 depending on consumption. In Switzerland, petrol averages CHF 1.80/liter; in Germany, €1.70/liter; in Austria, €1.50/liter. To minimize costs, fill up just before leaving Switzerland at the last Swiss station near St. Margrethen.

Fuel station density is high: every 30–40 km on highways. Notable stations include the Raststätte Lützelburg near Zurich and the Tank & Rast service area at Allgäu-Oberallgäu.

• Swiss highway vignette: mandatory (CHF 40).
• German sections are toll-free except for some tunnels.
• Austrian vignette: required from Passau onward (10-day €9.90).
• Speed limits: Switzerland 120 km/h, Germany unlimited (with recommendations), Austria 130 km/h.