The average bus between Irvine and Ontario takes 3h 53m and the fastest bus takes 2h 57m. There is a bus service every few hours from Irvine to Ontario. 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 hourly between Irvine and Ontario. The earliest departure is at 4:31 AM at night, and the last departure from Irvine is at 8:22 PM which arrives into Ontario at 4:13 AM. All services require a transfer at Ring-Brea Mall and take an average of 3h 53m. The schedules shown below are for the next available departures.


3h 27m • 2 changes


3h 27m • 2 changes


3h 33m • 2 changes


3h 40m • 2 changes


2h 57m • 2 changes


3h 3m • 2 changes


3h 19m • 2 changes


3h 25m • 2 changes


2h 57m • 2 changes


3h 3m • 2 changes


3h 19m • 2 changes


3h 25m • 2 changes


2h 57m • 2 changes


3h 3m • 2 changes


3h 19m • 2 changes


3h 25m • 2 changes
Want to know about travelling from Irvine to Ontario? 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 Irvine to Ontario. However, there are services departing from Irvine station and arriving at Ontario station via Ring-Brea Mall. The journey, including transfers, takes approximately 3h 53m.
Irvine to Ontario bus services, operated by OCTA, depart from University-Ent 3773 Mariposa Villa station.
Irvine to Ontario bus services, operated by OCTA, arrive at Pomona Transit Center station.
The distance between Irvine and Ontario is 46.6 km. The road distance is 71 km.
You can take a bus from University-Ent 3773 Mariposa Villa to Holt @ Palm via Ring-Brea Mall, Brea Mall, and Pomona Transit Center in around 3h 58m.