The average bus between Lake Arrowhead and Diamond Bar takes 4h 37m and the fastest bus takes 4h 13m. The bus service runs several times per day from Lake Arrowhead to Diamond Bar. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Buses run 3 times a day between Lake Arrowhead and Diamond Bar. The earliest departure is at 5:15 AM in the morning, and the last departure from Lake Arrowhead is at 6:14 PM which arrives into Diamond Bar at 10:27 PM. All services require a transfer at San Bernardino and take an average of 4h 37m. The schedules shown below are for the next available departures.



4h 18m • 3 changes



5h 14m • 3 changes



4h 43m • 3 changes



4h 13m • 3 changes



4h 18m • 3 changes



5h 14m • 3 changes



4h 43m • 3 changes



4h 13m • 3 changes
Want to know about travelling from Lake Arrowhead to Diamond Bar? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.
No, there is no direct bus from Lake Arrowhead to Diamond Bar. However, there are services departing from Lake Arrowhead station and arriving at Diamond Bar station via San Bernardino. The journey, including transfers, takes approximately 4h 37m.
Lake Arrowhead to Diamond Bar bus services, operated by Mountain Transit, depart from Stater Bros / Arrowhead Village - Hwy 189 station.
Lake Arrowhead to Diamond Bar bus services, operated by Mountain Transit, arrive at Montclair Transit Center station.
The distance between Lake Arrowhead and Diamond Bar is 62 km. The road distance is 110 km.
You can take a bus from Stater Bros / Arrowhead Village - Hwy 189 to Diamond Bar Blvd and Sunset Crossing Rd via San Bernardino, Montclair Transit Center, and Pomona Transit Center in around 4h 16m.