The average bus between Costa Mesa and Brea takes 2h 5m and the fastest bus takes 1h 46m. The bus service runs several times per day from Costa Mesa to Brea. 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 twice daily between Costa Mesa and Brea. The earliest departure is at 5:01 AM in the morning, and the last departure from Costa Mesa is at 5:47 PM which arrives into Brea at 7:41 PM. All services require a transfer, and take on average 2h 5m. The schedules shown below are for the next available departures.

2h 5m • 1 change

1h 57m • 1 change

1h 46m • 1 change

2h 5m • 1 change
Want to know about travelling from Costa Mesa to Brea? 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 Costa Mesa to Brea. However, there are services departing from Costa Mesa station and arriving at Brea station via Fullerton Trans Ctr Dock 2. The journey, including transfers, takes approximately 2h 5m.
Costa Mesa to Brea bus services, operated by OCTA, depart from Harbor-Bernard station.
Costa Mesa to Brea bus services, operated by OCTA, arrive at Fullerton Trans Ctr Dock 2 station.
The distance between Costa Mesa and Brea is 30.7 km. The road distance is 33 km.
OCTA operates a bus from Harbor-Bernard to Fullerton Trans Ctr Dock 2 every 30 minutes. Tickets cost $1–2 and the journey takes 1h 32m.