The average bus between Fontana and Costa Mesa takes 4h 37m and the fastest bus takes 3h 32m. The bus service runs several times per day from Fontana to Costa Mesa. 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 every 3 hours between Fontana and Costa Mesa. The earliest departure is at 6:36 AM in the morning, and the last departure from Fontana is at 8:13 PM which arrives into Costa Mesa at 6:31 AM. All services require a transfer at San Bernardino Transit Center and take an average of 4h 37m. The schedules shown below are for the next available departures.


4h 14m • 2 changes


3h 52m • 2 changes


4h 17m • 2 changes


3h 32m • 2 changes


3h 47m • 2 changes


3h 47m • 2 changes


4h 11m • 2 changes


4h 21m • 2 changes


4h 31m • 2 changes


4h 1m • 2 changes


5h 1m • 2 changes


4h 31m • 2 changes


3h 47m • 2 changes


3h 47m • 2 changes


4h 11m • 2 changes


4h 21m • 2 changes


3h 47m • 2 changes


3h 47m • 2 changes


4h 11m • 2 changes


4h 21m • 2 changes
Want to know about travelling from Fontana to Costa Mesa? 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 Fontana to Costa Mesa. However, there are services departing from Fontana station and arriving at Costa Mesa station via Harbor + Katella. The journey, including transfers, takes approximately 4h 37m.
Fontana to Costa Mesa bus services, operated by Omnitrans, depart from San Bernardino station.
Fontana to Costa Mesa bus services, operated by Omnitrans, arrive at Harbor-19Th station.
The distance between Fontana and Costa Mesa is 67.2 km. The road distance is 120 km.
You can take a bus from Merrill @ Sierra Avenue to Harbor-19Th via San Bernardino Transit Center, San Bernardino, Harbor + Katella, and Harbor-Katella in around 4h 12m.