Traffic Predict
Best Time to Drive from Westminster to Diamond Bar
Right now (6:20 pm PDT): about 41 minutes via SR-57 North and SR-22 East, usually 32 at this time.
Only 65% of this drive is measured by working traffic sensors right now. The rest is estimated from nearby sensors, typical speeds and street traffic, so times can be off. Why so few sensors work.
Typical drive time by departure time
| Leave | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mon | 25 | 26 | 27 | 31 | 30 | 28 | 28 | 27 | 28 | 29 | 32 | 33 | 35 | 31 | 27 | 26 | 25 |
| Tue | 25 | 26 | 28 | 32 | 31 | 29 | 29 | 28 | 29 | 30 | 33 | 39 | 41 | 38 | 29 | 26 | 25 |
| Wed | 25 | 26 | 29 | 32 | 31 | 29 | 28 | 28 | 28 | 30 | 32 | 35 | 39 | 35 | 29 | 26 | 25 |
| Thu | 25 | 26 | 28 | 31 | 31 | 30 | 29 | 29 | 29 | 29 | 31 | 36 | 37 | 32 | 27 | 26 | 25 |
| Fri | 25 | 26 | 28 | 29 | 29 | 28 | 29 | 28 | 29 | 31 | 34 | 35 | 36 | 32 | 27 | 27 | 25 |
| Sat | 25 | 25 | 25 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 28 | 28 | 29 | 27 | 27 | 27 | 26 |
| Sun | 25 | 25 | 25 | 25 | 25 | 26 | 27 | 26 | 26 | 27 | 27 | 27 | 27 | 26 | 26 | 27 | 25 |
About this drive
On weekdays the 28-mile drive from Westminster to Diamond Bar (via SR-57 North and SR-22 East) usually takes as little as 25 minutes and up to 43 minutes, when leaving around 5:30 pm on Tuesdays. The fastest times to leave are before 7 am or after 7:30 pm. Midday (11 am to 2 pm) it takes about 29 minutes. On weekends it is slowest around 5 pm on Saturdays (29 minutes).
About 27 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 0.9 miles surface streets (1 to 2 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Westminster to central Diamond Bar along the route on the map. Starting or ending elsewhere in a big city can add or save several minutes.
Simulated from typical freeway speeds at each point of the drive for the time you would reach it, from every 5-minute reading we have recorded. We don't have sensors on surface streets yet, so the time on them is estimated from how congested the freeways around each end of the drive are at that time, in both directions: streets jam when the freeways do.
Questions
What is the best time to drive from Westminster to Diamond Bar?
On weekdays, leave before 7 am or after 7:30 pm. The drive usually takes about 25 minutes then, versus up to 43 minutes at the worst times.
How long does it take to drive from Westminster to Diamond Bar?
The 28-mile drive usually takes 25 to 43 minutes on weekdays, depending on when you leave, and about 29 minutes midday.
When is traffic worst from Westminster to Diamond Bar?
Leaving around 5:30 pm on Tuesdays is usually slowest, about 43 minutes.
Freeways on this drive
SR-57 North in Orange County (12 miles) · SR-22 East in Orange County (9 miles) · SR-57 North in Los Angeles (4 miles) · SR-60 East in Los Angeles (2 miles)
Orange County traffic right now · Orange County traffic tomorrow · Los Angeles traffic right now · Los Angeles traffic tomorrow
More drives
Diamond Bar to Westminster (return trip) · Westminster to Los Angeles · Westminster to Anaheim · Westminster to Santa Monica · Westminster to Long Beach · Westminster to Anaheim · Westminster to Riverside · Westminster to Santa Ana · Westminster to Irvine · Westminster to San Bernardino · Westminster to Fontana · Westminster to Moreno Valley