Best Time to Drive from Santa Rosa to Brentwood

Right now (5:51 pm PDT): about 102 minutes via SR-4 East and US-101 South and SR-37 East, usually 98 at this time.

Only 46% 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 82-mile drive from Santa Rosa to Brentwood (via SR-4 East and US-101 South and SR-37 East) usually takes as little as 95 minutes and up to 118 minutes, when leaving around 4 pm on Fridays. The fastest times to leave are before 6 am or after 6:30 pm. Midday (11 am to 2 pm) it takes about 108 minutes. On weekends it is slowest around 2:30 pm on Sundays (105 minutes).

About 55 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 26 miles surface streets (37 to 51 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Santa Rosa to central Brentwood 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 Santa Rosa to Brentwood?

On weekdays, leave before 6 am or after 6:30 pm. The drive usually takes about 95 minutes then, versus up to 118 minutes at the worst times.

How long does it take to drive from Santa Rosa to Brentwood?

The 82-mile drive usually takes 95 to 118 minutes on weekdays, depending on when you leave, and about 108 minutes midday.

When is traffic worst from Santa Rosa to Brentwood?

Leaving around 4 pm on Fridays is usually slowest, about 118 minutes.

Freeways on this drive

SR-4 East in Bay Area (21 miles) · US-101 South in Bay Area (15 miles) · SR-37 East in Bay Area (12 miles) · I-680 South in Bay Area (5 miles)

Bay Area traffic right now · Bay Area traffic tomorrow

More drives

Brentwood to Santa Rosa (return trip) · Santa Rosa to San Francisco · Santa Rosa to Sacramento · Santa Rosa to Oakland · Santa Rosa to Hayward · Santa Rosa to Concord · Santa Rosa to Vallejo · Santa Rosa to Berkeley · Santa Rosa to Fairfield · Santa Rosa to Antioch · Santa Rosa to Richmond · Santa Rosa to Daly City

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