Heidelberg to Siena: Road Trip Guide & Distance

How far is Heidelberg from Siena?

The distance from Heidelberg to Siena is 438.8 miles (706.1 km) as the crow flies. Siena is located SSE of Heidelberg. By car, the driving distance is approximately 526.5 miles, taking about 10h 35min. A direct flight would take roughly 1h 23min. Heidelberg is in Germany, while Siena is in Italy.

This is a solid day of driving. Be sure to take breaks every 2-3 hours to avoid driver fatigue, and plan your meals ahead of time. Heading East means you'll be driving into the sunrise if you start early. Keep your windshield clean for the best visibility. Keep in mind this route crosses international borders. Don't forget your passport, and check current border crossing times and vehicle insurance requirements.

Coordinates come from public place data for Heidelberg and Siena. The driving distance is estimated from straight-line distance with a road-factor model, so confirm the route in your navigation app. Fuel, flight, bus, and train values are planning estimates and can change by date, provider, road closures, and border rules.