Besançon to Flensburg Road Trip Guide: Route 36 to E45

The drive from Besançon to Flensburg covers 895 kilometers, weaving through the Jura mountains, the Rhine rift, and the North German Plain. A peculiar fact: the route crosses the European watershed twice—first at the Col de Saverne (alt. 410 m) in the Vosges, then again near the Kaiser-Wilhelm-Koog in Schleswig-Holstein. The recommended highways are A36, A5, and finally the E45 (A7 in Germany). Estimated driving time is 9 hours without stops, but plan for 10–12 with breaks.

Road quality is generally excellent—German autobahns are smooth, well-lit, and marked. However, sections near construction zones (common between Kassel and Göttingen) require slower speeds. On the A36 in France, watch for deer at dawn/dusk between Besançon and Montbéliard.

• Child-friendly: The Erlebniswelt Steinau (exit 49 near Hanau) is a fairy-tale park with playgrounds and puppet shows. Open 10–18h.
• Pet stops: At Raststätte Dammer Berge (A1, km 325), there's a fenced dog run and water bowls. Most French rest areas require leashing.
• Fatigue tips: The 'Autohof Kirchheim' (A7, km 540) has a dedicated nap room with recliners. Also, park at the 'Parkplatz Kuhberg' (A5 near Heusweiler) – quiet, safe, with shade.
• Hidden off-route: The abandoned village of Baldenheim (5 min from A35 exit 17) – a ghost town from the 17th century, now a forest walk.

Fuel costs estimate €110–140 for a gasoline car (8 L/100 km, €1.70/L). Diesel brings this down to €90–115. The topography—hilly in the Jura and Rhine valley—adds 5–10% fuel consumption. Fuel stations are dense: every 20–30 km on German autobahns, less frequent on the A36 (every 40 km). Use apps like Tanken or Shell for best prices.

• Most expensive fuel: service stations near cities (Strasbourg, Frankfurt).
• Cheapest: Hypermarkets (E.Leclerc, Netto) in small towns off the highway.
• Toll roads: None between Besançon and Flensburg (French A36 toll-free; German autobahns free for cars).
• Highway exits: Well-numbered, but watch for the 'A5 km 245' system—gas stations often at odd-numbered kilometers.

The journey unfolds through four distinct geographical zones. Starting in Besançon, the A36 cuts through the Jura limestone plateaus, with abrupt cliffs and deep river gorges. Near Belfort, the Ballon d'Alsace massif appears to the east. After exiting the Vosges tunnel (tunnel de Saverne, 6.5 km), the landscape flattens into the Alsatian Rhine plain—a patchwork of vineyards and cornfields.

• Natural highlight: The Kaiserstuhl volcanic region (near Freiburg) offers terraced vineyards and a microclimate perfect for sunsets.
• Cultural stop: The Vieille Ville de Strasbourg (UNESCO) is a 5-minute detour off A5 at exit 48. Its half-timbered houses and cathédrale dominate the skyline.
• Vineyard tour: Stop at Riquewihr (exit 23) for Alsatian Gewürztraminer—buy a bottle at Caveau de l'Ami Fritz.
• Local crafts: In the Black Forest (near Offenburg), roadside stalls sell cuckoo clocks and kirsch liqueur.