Colmar to Ulm Road Trip: Scenic Drive Through Alsace & Black Forest

Between the half-timbered charm of Colmar and the Gothic spire of Ulm Minster lies a 220-kilometer road trip that crosses three countries—France, Germany, and Switzerland—via the A35, A5, and A8 highways. The route passes through the southern Black Forest, where the Rhine River shapes both the landscape and the border. A quirky fact: near Freiburg, you can stand in three countries at once at the Dreiländereck (three-country corner).

Estimated driving time without stops: 2 hours 40 minutes. But plan for at least 5 hours to enjoy the journey. This guide answers how long to drive Colmar to Ulm and is it worth driving Colmar to Ulm—yes, absolutely. For tips on planning stops, see how to find the best stops and hidden gems between cities.

The drive offers a dramatic shift from the Alsatian vineyards to the dense pine forests of the Black Forest, then to the open Swabian Jura. UNESCO World Heritage: the only site directly on route is the old town of Regensburg (40-minute detour from Ulm), but the best stops Colmar to Ulm include the Vauban fortifications of Neuf-Brisach (10 min detour) and the Maulbronn Monastery (30 min detour).

Climatic conditions: the Rhine valley often has fog in winter; the Black Forest section can be rainy or snowy from November to March. Sunset views over the Danube from Ulm's Wilhelmsburg bastion are spectacular. For local commerce, stop at a Hofladen (farm shop) near Freiburg for Black Forest ham and kirschwasser.

• Geographical highlights: Kaiserstuhl volcanic hills, Titisee lake, Wutach Gorge (short hike).
• Regional delights: Münsterkäse cheese from Freiburg, Ulmer Zwiebelstange (onion pastries).
• Market days: Freiburg's Münsterplatz market (daily except Sunday), Ulm's Christmas market (December).

The journey starts on the A35 in Colmar, heading south towards Basel, then switches to the German A5 at the border (no toll on French side, but Germany requires a vignette for some sections). From Freiburg, take the B31 towards Titisee, then the A8 east to Ulm. Fuel stations are plentiful: every 20–30 km along the A5 and A8, but less frequent on the B31. Expect fuel costs around €35–€45 for a petrol car.

Topography: the route climbs from the Rhine plain (200 m) to the Black Forest highlands (900 m) around Titisee, then descends to the Danube valley in Ulm (480 m). Fuel efficiency: use engine braking on descents and avoid cruise control on winding sections. For best stops Colmar to Ulm, consider the Freiburg Bächle (water channels) and the Titisee lake.

• Highway quality: Excellent on A5/A8; B31 is two-lane and twisty, but well-maintained.
• Rest areas: Every 30 km on highways; Raststätte Baden-Baden and Raststätte Ulm have 24/7 services.
• Toll: None in Germany; France A35 is toll-free south of Colmar.

Road quality on the A5 and A8 is top-notch, but the B31 through the Black Forest has sharp curves and occasional wildlife crossings. Use dipped beam in tunnels and at dusk. Night illumination is good on highways; the B31 has limited lighting. Safety tip: watch for cyclists on the B31 near Freiburg.

Family suitability: the Europapark Rust (50 km detour) is Europe's second-largest theme park. For quiet moments, the Titisee lake offers paddleboats and a playground at Strandbad Titisee. Pet-friendly: most Biergartens in the Black Forest allow dogs; the Rastplatz Buchenberg on A8 has a designated dog run.

Fatigue management: ideal rest stops are the Rasthof Dreyeckland on A5 (panoramic view), the Parkplatz Kandel on B31 (short hiking path), and the Raststätte Dornstadt on A8 (quiet parking). For a nap, use the Parkplatz Loh (A8, near Ulm). Hidden off-route: the abandoned Hotel Roter Ochsen near Glottertal (5-min detour) is a photographer's spot.

Culinary infrastructure: in Breisach, try the Flammkuchen at Weinstube Krone. In Titisee, Seehotel Krummen serves trout from the lake. For a quick bite on A8, the Raststätte Ilmenau has Swabian Maultaschen. For things to do between Colmar and Ulm: hike to the All Saints Abbey ruins in Schaffhausen (15-min detour).

• Emergency numbers: 112 (EU-wide), roadside assistance: ADAC (Germany) +49 89 22 22 22.
• Parking: Ulm city center has park-and-ride (P&R Ulm) for €1.50/day.
• EV charging: rapid chargers at all Autobahn rest stops.