Metrolink San Bernardino Line
San Bernardino Line is a Metrolink route from San Bernardino to Los Angeles via Pomona Valley and San Gabriel Valley. This line has the most frequent service on the Metrolink system. Service runs all day, 7 days a week (excluding some holidays). Trains run every 20-30 minutes during peak hours in peak direction and every 1-2 hours during off-peak periods.