The average bus between Garden Grove and San Marcos takes 5h 12m and the fastest bus takes 3h 30m. The bus service runs several times per day from Garden Grove to San Marcos. 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 Garden Grove and San Marcos. The earliest departure is at 6:58 AM in the morning, and the last departure from Garden Grove is at 6:58 PM which arrives into San Marcos at 5:52 AM. All services require a transfer at Santa Ana and take an average of 5h 12m. The schedules shown below are for the next available departures.



3h 30m • 3 changes



3h 31m • 3 changes



3h 41m • 3 changes
Arrives next day



9h 54m • 3 changes



3h 30m • 3 changes



3h 31m • 3 changes



3h 41m • 3 changes
Arrives next day



9h 54m • 3 changes



3h 30m • 3 changes



3h 31m • 3 changes



3h 41m • 3 changes
Arrives next day



9h 54m • 3 changes
Want to know about travelling from Garden Grove to San Marcos? 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 Garden Grove to San Marcos. However, there are services departing from Garden Grove station and arriving at San Marcos station via Oceanside. The journey, including transfers, takes approximately 5h 12m.
Garden Grove to San Marcos bus services, operated by OCTA, depart from Santa Ana station.
Garden Grove to San Marcos bus services, operated by OCTA, arrive at Vista Transit Center Stall 5 station.
The distance between Garden Grove and San Marcos is 100.4 km. The road distance is 127 km.
You can take a bus from Westminster-Euclid to Mission Rd & Pico Av via Santa Ana, Oceanside, Oceanside Transit Center Stall 10, and Vista Transit Center Stall 7 in around 4h 26m.