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Newport Beach to Diamond Bar buses

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Trip Overview

The average bus between Newport Beach and Diamond Bar takes 3h 21m and the fastest bus takes 2h 35m. There is a bus service every few hours from Newport Beach to Diamond Bar. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.

3h 21m
Duration
33 mi
Distance
$10
Average price
Hourly
Frequency

Line 55 bus, line 57 bus, line 286 bus

best
  1. Take the bus from Placentia-17Th to Bristol-Sunflowerbus bus 55
  2. Take the bus from Bristol-Sunflower to Ring-Brea Mallbus bus 57
  3. Take the bus from Brea Mall to Diamond Bar Blvd and Sunset Crossing Rdbus bus 286
3h 21m
$5–10

Newport Beach to Diamond Bar bus times

Buses run hourly between Newport Beach and Diamond Bar. The earliest departure is at 5:09 AM in the morning, and the last departure from Newport Beach is at 10:22 PM which arrives into Diamond Bar at 6:44 AM. All services require a transfer at Bristol-Sunflower and take an average of 3h 21m. The schedules shown below are for the next available departures.

Departing Saturday, October 10, 2026

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    Arrives next day

    OCTAOCTAFoothill Transit9h 59m • 2 changes

Departing Monday, October 12, 2026

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    OCTAOCTAFoothill Transit2h 35m • 2 changes

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    OCTAOCTAFoothill Transit2h 35m • 2 changes

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    OCTAOCTAFoothill Transit3h 6m • 2 changes

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    OCTAOCTAFoothill Transit3h 8m • 2 changes
  • Show more

Departing Tuesday, October 13, 2026

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    OCTAOCTAFoothill Transit2h 35m • 2 changes

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    OCTAOCTAFoothill Transit2h 35m • 2 changes

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    OCTAOCTAFoothill Transit3h 6m • 2 changes

  •  → 

    OCTAOCTAFoothill Transit3h 8m • 2 changes
  • Show more

Departing Wednesday, October 14, 2026

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    OCTAOCTAFoothill Transit2h 35m • 2 changes

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    OCTAOCTAFoothill Transit2h 35m • 2 changes

  •  → 

    OCTAOCTAFoothill Transit3h 6m • 2 changes

  •  → 

    OCTAOCTAFoothill Transit3h 8m • 2 changes
  • Show more

Frequently asked questions

Want to know about travelling from Newport Beach to Diamond Bar? 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.

Map of how to get from Newport Beach to Diamond Bar.ExpandLaunch map view
  • Distance: 32.8 mi
  • Duration: 3h 21m

What companies run services between Newport Beach, CA, USA and Diamond Bar, CA, USA?

You can take a bus from Placentia-17Th to Diamond Bar Blvd and Sunset Crossing Rd via Bristol-Sunflower, Ring-Brea Mall, and Brea Mall in around 3h 21m.

Operators