Traffic Predict
Best Time to Drive from Upland to Diamond Bar
Right now (5:06 pm PST): about 15 minutes via I-10 West and SR-57 South, usually 13 at this time.
Only 61% 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 | 11 | 17 | 21 | 22 | 18 | 15 | 15 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 |
| Tue | 12 | 17 | 22 | 22 | 18 | 16 | 15 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 |
| Wed | 12 | 17 | 22 | 21 | 19 | 15 | 15 | 14 | 13 | 14 | 13 | 13 | 13 | 14 | 12 | 12 | 12 |
| Thu | 11 | 17 | 21 | 20 | 17 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 13 | 12 | 12 |
| Fri | 12 | 14 | 15 | 16 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 12 | 12 |
| Sat | 12 | 12 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 12 |
| Sun | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 |
About this drive
On weekdays the 13-mile drive from Upland to Diamond Bar (via I-10 West and SR-57 South) usually takes as little as 11 minutes and up to 23 minutes, when leaving around 7:30 am on Tuesdays. The fastest times to leave are before 5:30 am or after 7 pm. Midday (11 am to 2 pm) it takes about 14 minutes. On weekends it is slowest around 2 pm on Saturdays (14 minutes).
About 12 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 0.6 miles surface streets (about 1 minutes), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Upland 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 Upland to Diamond Bar?
On weekdays, leave before 5:30 am or after 7 pm. The drive usually takes about 11 minutes then, versus up to 23 minutes at the worst times.
How long does it take to drive from Upland to Diamond Bar?
The 13-mile drive usually takes 11 to 23 minutes on weekdays, depending on when you leave, and about 14 minutes midday.
When is traffic worst from Upland to Diamond Bar?
Leaving around 7:30 am on Tuesdays is usually slowest, about 23 minutes.
Freeways on this drive
I-10 West in Los Angeles (6 miles) · I-10 West in Inland Empire (3 miles) · SR-57 South in Los Angeles (3 miles)
Inland Empire traffic right now · Inland Empire traffic tomorrow · Los Angeles traffic right now · Los Angeles traffic tomorrow
More drives
Diamond Bar to Upland (return trip) · Upland to Los Angeles · Upland to Long Beach · Upland to Anaheim · Upland to Santa Ana · Upland to Irvine · Upland to San Bernardino · Upland to Fontana · Upland to Moreno Valley · Upland to Huntington Beach · Upland to Glendale · Upland to Santa Clarita