Highway 330 → Highway 18 (Running Springs) Shortest distance from LA/OC Fastest and most direct for visitors from Los Angeles, Orange County, and points west. Can get very congested on peak weekends.
Highway 18 (Lucerne Valley) High Desert access, least mountain driving Quickest from Barstow, Las Vegas, and other High Desert areas. Easiest climb with the fewest mountain miles.
Highway 18 (Running Springs) Alternative that avoids 330 Good west-side option when 330 is slow or controlled. Connects through Running Springs straight to Big Bear Lake.
Highway 38 (Redlands) Scenic, fewer switchbacks About 20 minutes longer, often less congested than 330/18. The “back way” through Redlands with gentler curves.
September 18, 2025: Highway 38 is closed indefinitely due to a mudslide; use SR-330 to SR-18 via Running Springs or Lucerne Valley as an alternate route.
Best ways to check for closures and chain controls