Is Simi Valley near Los Angeles?

Yes, it is located in the southeastern corner of Ventura County, adjacent to the San Fernando Valley.

How long does it take to drive?

It usually takes 5.5 hours depending on traffic.

Are there trains to Simi Valley?

You can take an Amtrak train to Chatsworth and a short taxi to Simi Valley, but driving is faster.

What is the best route?

US-395 South to CA-14 South is the standard and most efficient route.

Is it safe to drive alone?

Yes, the route is well-traveled, but ensure your vehicle is in good condition.

Mammoth Lakes

Simi Valley

Driving

Mammoth Lakes to Simi Valley

Updated: 28 May 2026

Traveling from Mammoth Lakes to Simi Valley involves a 520-kilometer drive south through the heart of California's desert and mountain corridors. You will navigate US-395 South, connecting to CA-14 South, and eventually merging onto the I-5 and CA-118 West. The journey typically takes 5.5 hours, though traffic near the San Fernando Valley can add significant time. This route is favored by those seeking a direct path from the high Sierra to the suburban landscapes of Ventura County. Ensure your vehicle is prepared for significant elevation changes and temperature fluctuations.

Total Distance: 520 km driving distance; 400 km straight-line air distance.

Fastest Way

Driving is the only practical mode, taking 5.5 hours.

Cheapest Way

Driving your own car is the most economical option, costing roughly 65 USD in fuel.

Compare Mammoth Lakes to Simi Valley Routes

Driving

Direct

Duration

5 hours 30 mins

Avg Price

65 USD

Operator

Personal Vehicle

Route

US-395 S to CA-14 S to I-5 S to CA-118 W

Use the CA-118 West exit from I-5 to avoid downtown Los Angeles traffic.

Travel Tips

Avoid Rush Hour
The CA-118 freeway experiences heavy congestion between 3 PM and 6 PM.
Check Weather
Winter storms can close US-395 near Mammoth; always check Caltrans before departing.
Snacks
Stock up on food in Lancaster, as options become limited once you hit the mountain passes.
Tire Pressure
Check your tire pressure before leaving, as the temperature drop from the desert to the coast affects it.
Navigation
Download offline maps, as cellular service is unreliable in the desert sections of CA-14.

Safety Tips

Brake Safety
Use lower gears on the steep grades of the Sierra Nevada descent.
Desert Safety
Carry extra water in case of a breakdown in the Mojave Desert.
Night Driving
Avoid driving the CA-14 mountain passes at night due to limited lighting and wildlife.
Emergency Contact
Keep a physical map in your glove box in case your GPS fails.