Best Time to Drive from Ontario to San Dimas

Right now (3:21 pm PST): about 17 minutes via I-10 West, usually 17 at this time.

Only 52% 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 15-mile drive from Ontario to San Dimas (via I-10 West) usually takes as little as 15 minutes and up to 22 minutes, when leaving around 6:30 am on Tuesdays. The fastest times to leave are before 6 am or after 7:30 pm. Midday (11 am to 2 pm) it takes about 18 minutes. On weekends it is slowest around 1:30 pm on Saturdays (18 minutes).

About 11 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 3 miles surface streets (6 to 7 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Ontario to central San Dimas 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 Ontario to San Dimas?

On weekdays, leave before 6 am or after 7:30 pm. The drive usually takes about 15 minutes then, versus up to 22 minutes at the worst times.

How long does it take to drive from Ontario to San Dimas?

The 15-mile drive usually takes 15 to 22 minutes on weekdays, depending on when you leave, and about 18 minutes midday.

When is traffic worst from Ontario to San Dimas?

Leaving around 6:30 am on Tuesdays is usually slowest, about 22 minutes.

Freeways on this drive

I-10 West in Los Angeles (6 miles) · I-10 West in Inland Empire (3 miles) · SR-57 North in Los Angeles (1.9 miles)

Inland Empire traffic right now · Inland Empire traffic tomorrow · Los Angeles traffic right now · Los Angeles traffic tomorrow

More drives

San Dimas to Ontario (return trip) · Ontario to Los Angeles · Ontario to Santa Monica · Ontario to Pasadena · Ontario to Long Beach · Ontario to West Covina · Ontario to Burbank · Ontario to Glendale · Ontario to Santa Clarita · Ontario to Van Nuys · Ontario to Torrance · Ontario to LAX

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