Simi Valley to Vacaville: Road Trip Guide & Distance

How far is Simi Valley from Vacaville?

The distance from Simi Valley to Vacaville is 334 miles (537.6 km) as the crow flies. Vacaville is located NNW of Simi Valley. By car, the driving distance is approximately 400.8 miles, taking about 8h 4min. A direct flight would take roughly 1h 10min. Both are located in United States.

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. Since you'll be heading mostly West, pack a good pair of sunglasses if you plan to drive during the late afternoon to avoid the harsh sun glare.

Coordinates come from public place data for Simi Valley and Vacaville. 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.