Avg. for September
Select dates to see prices and availability
Avg. for September
Nightly prices at Best Western Diamond Bar Hotel & Suites average US$94 in the cheapest month (September) and US$118 in the most expensive month (March), based on the last 12 months.
| Month | Average price |
|---|---|
| January | US$102 |
| February | US$116 |
| March | US$118 |
| April | US$109 |
| May | US$116 |
| June | US$108 |
| July | US$101 |
| September | US$94 |
| October | US$98 |
| November | US$100 |
| December | US$98 |
Most expensive: March (~US$118)
Cheapest: September (~US$94)
Parking
Swimming pool
Non-smoking rooms
Business centre
Housekeeping
Banquet facilities
California State Polytechnic University, Pomona (2.7 Miles)
Mount San Antonio College (5.2 Miles)
The Fox Theater Pomona (5.4 Miles)
Western University of Health Sciences (5.5 Miles)
The Glass House Concert Hall (5.5 Miles)
Fairplex (5.8 Miles)
5
Room details
Sleeps 4
4
Room details
Sleeps 2
4
Room details
Sleeps 2
4
Room details
Sleeps 2
4
Room details
Sleeps 4
4
Room details
Sleeps 4
Based on 1,014 verified reviews
AI-generated summary based on recent guest reviews
At Best Western Diamond Bar Hotel & Suites, guests frequently note spacious, recently updated rooms and convenient freeway access with walkable dining, alongside recurring complaints about freeway noise, uneven cleanliness, and inconsistent front-desk service and check-in times.
Read moreWas this helpful?
Melissa
3 weeks ago
·
Stayed 1 night
Hsin Wha
3 weeks ago
·
Stayed 2 nights
Hsin Wha
4 weeks ago
·
Stayed 2 nights
Mosi
4 weeks ago
·
Stayed 3 nights
Dionisio
20 Aug 2026
·
Stayed 1 night
Check-in
Check-out
From 16:00 to 00:00
Before 11:00
Free self-parking is available on-site, but it is limited.
A complimentary buffet breakfast is served on weekdays from 6:00 AM to 9:00 AM and on weekends from 6:00 AM to 9:30 AM.
Check-in is at 4:00 PM and check-out is at 11:00 AM. Early or late check-in/check-out may be available upon request but cannot be guaranteed.
The property offers step-free entrances and wheelchair-accessible facilities, including the registration desk, public areas, and rooms.
The hotel is centrally located in Diamond Bar, within a 15-minute drive of Brea Mall and California State University, Fullerton. It is approximately 14.5 miles from Ontario Convention Center and 3 miles from California State Polytechnic University, Pomona.
Yes, there is an outdoor swimming pool available, which is operational from 8:00 AM to 9:00 PM.
Children stay free when occupying the parent or guardian's room using existing bedding. However, children may not be eligible for complimentary breakfast.
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Average nightly price across deals, with taxes & fees.
Prices in USD for 2 guests, updated daily.