The average bus between Costa Mesa and Lake Forest takes 1h 58m and the fastest bus takes 1h 30m. The bus service runs several times per day from Costa Mesa to Lake Forest. 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 2 hours between Costa Mesa and Lake Forest. The earliest departure is at 5:15 AM in the morning, and the last departure from Costa Mesa is at 6:51 PM which arrives into Lake Forest at 8:43 PM. All services require a transfer at Bristol-Sunflower and take an average of 1h 58m. The schedules shown below are for the next available departures.

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2h • 1 changeWant to know about travelling from Costa Mesa to Lake Forest? 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 Lake Forest. However, there are services departing from Harbor-Bernard station and arriving at Jeronimo-Heidi station via Bristol-Sunflower station. The journey, including transfers, takes approximately 1h 58m.
Costa Mesa to Lake Forest bus services, operated by OCTA, depart from Harbor-Bernard station.
Costa Mesa to Lake Forest bus services, operated by OCTA, arrive at Jeronimo-Heidi station.
The distance between Costa Mesa and Lake Forest is 21.3 km. The road distance is 26 km.
You can take a bus from Harbor-Bernard to Jeronimo-Heidi via Bristol-Sunflower and Sunflower-Bristol in around 2h 32m.