Flagstaff to Simi Valley: Road Trip Guide & Distance

How far is Flagstaff from Simi Valley?

The distance from Flagstaff to Simi Valley is 409.8 miles (659.5 km) as the crow flies. Simi Valley is located W of Flagstaff. By car, the driving distance is approximately 491.8 miles, taking about 9h 54min. A direct flight would take roughly 1h 19min. Both are located in United States — Flagstaff in Arizona and Simi Valley in California.

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 Flagstaff and Simi Valley. 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.