The average bus between Ontario and Irvine Spectrum takes 4h 59m and the fastest bus takes 4h 11m. The bus service runs several times per day from Ontario to Irvine Spectrum. 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 4 hours between Ontario and Irvine Spectrum. The earliest departure is at 5:45 AM in the morning, and the last departure from Ontario is at 9:32 PM which arrives into Irvine Spectrum at 6:20 AM. All services require a transfer at Pomona Transit Center and take an average of 4h 59m. The schedules shown below are for the next available departures.



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4h 16m • 3 changes
Want to know about travelling from Ontario to Irvine Spectrum? 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 Ontario to Irvine Spectrum. However, there are services departing from Ontario station and arriving at Irvine Spectrum station via Brea Mall. The journey, including transfers, takes approximately 4h 59m.
Ontario to Irvine Spectrum bus services, operated by Omnitrans, depart from Pomona Transit Center station.
Ontario to Irvine Spectrum bus services, operated by Omnitrans, arrive at Alton-Irvine Center station.
The distance between Ontario and Irvine Spectrum is 46.4 km. The road distance is 83 km.
You can take a bus from Holt @ Lemon to Alton-Irvine Center via Pomona Transit Center, Brea Mall, Ring-Brea Mall, Bristol-Sunflower, and Sunflower-Bristol in around 5h 32m.