Best Time to Drive from Brentwood to San Francisco

Right now (7:32 pm PDT): about 77 minutes via SR-4 West and I-80 West, usually 60 at this time.

Only 70% 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

Minutes from Brentwood to San Francisco by day and time you leave (local time)
Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	58	79	100	87	75	72	68	66	64	65	65	64	63	59	57	57	56
Tue	56	84	110	97	79	73	67	63	63	64	65	66	75	62	57	57	56
Wed	56	83	112	98	80	75	68	63	63	63	65	69	73	62	58	57	57
Thu	56	84	116	101	79	73	70	65	65	68	71	83	84	64	58	58	57
Fri	56	69	83	78	66	64	63	65	66	67	67	71	74	65	60	58	56
Sat	56	56	57	57	59	64	76	80	78	76	74	73	75	68	63	60	56
Sun	56	56	56	57	57	61	65	68	79	74	74	71	69	64	61	59	56

About this drive

On weekdays the 62-mile drive from Brentwood to San Francisco (via SR-4 West and I-80 West) usually takes as little as 56 minutes and up to 116 minutes, when leaving around 7 am on Thursdays. The fastest times to leave are before 5:30 am or after 6:30 pm. Midday (11 am to 2 pm) it takes about 65 minutes. On weekends it is slowest around 12 pm on Saturdays (80 minutes).

About 58 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 4 miles surface streets (5 to 6 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Brentwood to downtown San Francisco 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 Brentwood to San Francisco?

On weekdays, leave before 5:30 am or after 6:30 pm. The drive usually takes about 56 minutes then, versus up to 116 minutes at the worst times.

How long does it take to drive from Brentwood to San Francisco?

The 62-mile drive usually takes 56 to 116 minutes on weekdays, depending on when you leave, and about 65 minutes midday.

When is traffic worst from Brentwood to San Francisco?

Leaving around 7 am on Thursdays is usually slowest, about 116 minutes.

Freeways on this drive

SR-4 West in Bay Area (35 miles) · I-80 West in Bay Area (23 miles)

Bay Area traffic right now · Bay Area traffic tomorrow

More drives

San Francisco to Brentwood (return trip) · Brentwood to San Jose

Open the live traffic map →

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	58	79	100	87	75	72	68	66	64	65	65	64	63	59	57	57	56
Tue	56	84	110	97	79	73	67	63	63	64	65	66	75	62	57	57	56
Wed	56	83	112	98	80	75	68	63	63	63	65	69	73	62	58	57	57
Thu	56	84	116	101	79	73	70	65	65	68	71	83	84	64	58	58	57
Fri	56	69	83	78	66	64	63	65	66	67	67	71	74	65	60	58	56
Sat	56	56	57	57	59	64	76	80	78	76	74	73	75	68	63	60	56
Sun	56	56	56	57	57	61	65	68	79	74	74	71	69	64	61	59	56

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	58	79	100	87	75	72	68	66	64	65	65	64	63	59	57	57	56
Tue	56	84	110	97	79	73	67	63	63	64	65	66	75	62	57	57	56
Wed	56	83	112	98	80	75	68	63	63	63	65	69	73	62	58	57	57
Thu	56	84	116	101	79	73	70	65	65	68	71	83	84	64	58	58	57
Fri	56	69	83	78	66	64	63	65	66	67	67	71	74	65	60	58	56
Sat	56	56	57	57	59	64	76	80	78	76	74	73	75	68	63	60	56
Sun	56	56	56	57	57	61	65	68	79	74	74	71	69	64	61	59	56

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	58	79	100	87	75	72	68	66	64	65	65	64	63	59	57	57	56
Tue	56	84	110	97	79	73	67	63	63	64	65	66	75	62	57	57	56
Wed	56	83	112	98	80	75	68	63	63	63	65	69	73	62	58	57	57
Thu	56	84	116	101	79	73	70	65	65	68	71	83	84	64	58	58	57
Fri	56	69	83	78	66	64	63	65	66	67	67	71	74	65	60	58	56
Sat	56	56	57	57	59	64	76	80	78	76	74	73	75	68	63	60	56
Sun	56	56	56	57	57	61	65	68	79	74	74	71	69	64	61	59	56