Best Time to Drive from Diamond Bar to Lancaster

Right now (3:20 pm PST): about 110 minutes via I-210 West and SR-14 North, usually 135 at this time.

Only 17% 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.

About this drive

On weekdays the 84-mile drive from Diamond Bar to Lancaster (via I-210 West and SR-14 North) usually takes as little as 98 minutes and up to 254 minutes, when leaving around 7 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 126 minutes. On weekends it is slowest around 1:30 pm on Saturdays (142 minutes).

About 46 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 38 miles surface streets (55 to 172 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Diamond Bar to central Lancaster 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 Diamond Bar to Lancaster?

On weekdays, leave before 5:30 am or after 7 pm. The drive usually takes about 98 minutes then, versus up to 254 minutes at the worst times.

How long does it take to drive from Diamond Bar to Lancaster?

The 84-mile drive usually takes 98 to 254 minutes on weekdays, depending on when you leave, and about 126 minutes midday.

When is traffic worst from Diamond Bar to Lancaster?

Leaving around 7 am on Tuesdays is usually slowest, about 254 minutes.

Freeways on this drive

I-210 West in Los Angeles (28 miles) · SR-14 North in Los Angeles (10 miles) · SR-57 North in Los Angeles (7 miles)

Los Angeles traffic right now · Los Angeles traffic tomorrow

More drives

Lancaster to Diamond Bar (return trip) · Diamond Bar to Los Angeles · Diamond Bar to Long Beach · Diamond Bar to Anaheim · Diamond Bar to Riverside · Diamond Bar to Santa Ana · Diamond Bar to Irvine · Diamond Bar to San Bernardino · Diamond Bar to Fontana · Diamond Bar to Moreno Valley · Diamond Bar to Huntington Beach · Diamond Bar to Glendale

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