Prague to St. Moritz Road Trip: Alpine Highway Guide

The road trip from Prague to St. Moritz is a 700 km journey that crosses four countries and takes about 7‑9 hours of pure driving time without stops. The route follows the D5 from Prague to the German border, then the A6 and A8 through southern Germany, before entering Austria via the A1 near Salzburg, and finally the Swiss A13 and A3 into the Engadin valley. This drive includes the remarkable Arlberg Pass (formerly a toll road, now a tunnel) and the stunning approach to St. Moritz along the Inn River. The road is well‑maintained but includes sections with steep gradients and sharp curves, especially in the Alps. A unique local quirk: the Swiss section of the A13 near Chur features Europe's longest road tunnel, the San Bernardino Tunnel (16.9 km), which bypasses the historic pass. This route is a classic transalpine adventure with evolving landscapes from Bohemian plains to Alpine peaks.

Road quality is excellent throughout, but watch for speed cameras, especially in Austria and Switzerland where they are frequent and hidden. In winter, snow tires are mandatory in Austria and Switzerland from November to April. For families, the route offers many stops: the Karlovy Vary (Carlsbad) spa town (a slight detour north of Prague), the Legoland Germany theme park near Günzburg (off the A8), and the Swiss Miniature Park in Melide (if going via Lugano). For pets, many German rest stops have dog‑walking areas, and most Swiss hotels are pet‑friendly. Bring an EU pet passport for cross‑border travel.

• Rest zones: every 50 km on German Autobahns have service areas with playgrounds.
• Family tip: stop at the Swarovski Crystal Worlds in Wattens, Austria (near Innsbruck).
• Pet‑friendly: almost all Swiss rest stops are pet‑friendly, but keep dogs on a leash.

Fatigue management is crucial on this route, especially after Munich when the Alpine driving becomes more demanding. The best rest stops include the Irschenberg service area on the A8 south of Munich (with great views of the Alps) and the Schönbichl rest area in Austria near the A12 with a playground.

For a historical interlude, the Arlberg tunnel area has a museum about the tunnel construction. Another hidden gem is the Burgruine Ehrenberg castle ruin in Reutte, Tyrol, which offers a medieval fortress experience and a suspension bridge. The total drive time is about 7‑9 hours, so plan for at least 2 hours of breaks.

Using a tool like how to find the best stops and hidden gems between cities can help you discover off‑route spots like the Wieskirche pilgrimage church in Steingaden, a UNESCO World Heritage site, or the Ettal Abbey in Graswang, both near the A8.

The drive transitions from Bohemian rolling hills, through Bavarian forests and meadows, into the dramatic limestone Alps of Austria and Switzerland. The best stops along this route include the medieval town of Plzeň (Pilsen) just west of Prague, the Bavarian Forest near the German border, and the Alpine town of Landeck in Austria. The Swiss section from Thusis to St. Moritz follows the Via Mala gorge, a deep limestone canyon with sheer walls, and then the Julier Pass (2,284 m) which offers panoramic views of the Engadin valley. For nature lovers, a detour to the Swiss National Park near Zernez is recommended.

• Plzeň: home of Pilsner beer, with a historic square and brewery tours.
• Bavarian Forest: stop at the Baumwipfelpfad (treetop walk) near Neuschönau.
• Salzburg: optional detour to Mozart's birthplace, about 20 km off the route.
• Julier Pass: a high‑altitude pass with stunning lakes and views of Piz Bernina.

Local commerce along the route includes Christmas markets in the German towns (if traveling in winter) and cheese‑making demonstrations in Engadin. For souvenirs, look for Swiss chocolate, pocket knives, and traditional Engadin walnuts. The best place to buy authentic Swiss cheese is at a farm shop in the valley. For a more unique experience, consider a stop at the Sprüngli chocolate shop in Zurich airport (if you take the A3 route via Zurich).

Fuel costs vary significantly across countries. In June 2025, petrol prices average €1.55/L in Czech Republic, €1.75/L in Germany, €1.45/L in Austria, and €1.85/L in Switzerland. Diesel is slightly cheaper everywhere. Tolls are required on Czech D‑roads (electronic vignette, about €10 for 10 days), German highways are free for cars, Austrian motorways need a vignette (€9.50 for 10 days), and Swiss motorways require a vignette (€35 for a year, mandatory). To save money, fill up in Czech Republic or Austria before crossing into Switzerland. The most fuel‑efficient driving speed is around 100‑110 km/h, which also helps to avoid fatigue. The route has many service stations every 30‑50 km on major highways, but once you leave the A13 in Switzerland, gas stations become sparse – plan to fill up in Chur or Thusis before the final leg.

• Czech Republic: D5 from Prague to Rozvadov (border) – smooth, 130 km/h speed limit.
• Germany: A6 to Nuremberg, then A9 to Munich – mostly unlimited sections, but heavy traffic near cities.
• Austria: A1 from Salzburg to Innsbruck area – mountainous but well‑maintained.
• Switzerland: A13 from St. Margrethen to Thusis, then A3/A27 to Engadin – scenic but with tunnels.