Best Time to Drive from South San Francisco to Vallejo

Right now (6:49 pm PDT): about 57 minutes via I-80 East and US-101 North, usually 41 at this time.

Only 69% 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 South San Francisco to Vallejo 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	37	38	39	46	47	42	41	41	40	43	53	55	59	50	40	39	38
Tue	37	38	39	46	48	42	41	41	40	42	54	61	68	58	41	40	38
Wed	37	38	40	47	51	45	41	41	41	43	55	65	72	59	43	40	38
Thu	37	38	39	47	49	45	41	41	41	44	54	67	75	62	45	40	38
Fri	37	38	39	43	43	41	42	43	45	51	66	73	73	58	45	40	38
Sat	37	37	37	37	38	40	43	44	45	46	47	45	45	41	40	39	38
Sun	37	37	37	37	38	38	39	41	43	44	42	42	41	39	40	40	38

About this drive

On weekdays the 39-mile drive from South San Francisco to Vallejo (via I-80 East and US-101 North) usually takes as little as 36 minutes and up to 76 minutes, when leaving around 4:30 pm on Fridays. The fastest times to leave are before 7:30 am or after 8 pm. Midday (11 am to 2 pm) it takes about 42 minutes. On weekends it is slowest around 3 pm on Saturdays (47 minutes).

About 34 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 5 miles surface streets (7 to 11 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central South San Francisco to central Vallejo 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 South San Francisco to Vallejo?

On weekdays, leave before 7:30 am or after 8 pm. The drive usually takes about 36 minutes then, versus up to 76 minutes at the worst times.

How long does it take to drive from South San Francisco to Vallejo?

The 39-mile drive usually takes 36 to 76 minutes on weekdays, depending on when you leave, and about 42 minutes midday.

When is traffic worst from South San Francisco to Vallejo?

Leaving around 4:30 pm on Fridays is usually slowest, about 76 minutes.

Freeways on this drive

I-80 East in Bay Area (24 miles) · US-101 North in Bay Area (10 miles)

Bay Area traffic right now · Bay Area traffic tomorrow

More drives

Vallejo to South San Francisco (return trip) · South San Francisco to Stockton · South San Francisco to Santa Rosa · South San Francisco to Concord

Open the live traffic map →

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	37	38	39	46	47	42	41	41	40	43	53	55	59	50	40	39	38
Tue	37	38	39	46	48	42	41	41	40	42	54	61	68	58	41	40	38
Wed	37	38	40	47	51	45	41	41	41	43	55	65	72	59	43	40	38
Thu	37	38	39	47	49	45	41	41	41	44	54	67	75	62	45	40	38
Fri	37	38	39	43	43	41	42	43	45	51	66	73	73	58	45	40	38
Sat	37	37	37	37	38	40	43	44	45	46	47	45	45	41	40	39	38
Sun	37	37	37	37	38	38	39	41	43	44	42	42	41	39	40	40	38

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	37	38	39	46	47	42	41	41	40	43	53	55	59	50	40	39	38
Tue	37	38	39	46	48	42	41	41	40	42	54	61	68	58	41	40	38
Wed	37	38	40	47	51	45	41	41	41	43	55	65	72	59	43	40	38
Thu	37	38	39	47	49	45	41	41	41	44	54	67	75	62	45	40	38
Fri	37	38	39	43	43	41	42	43	45	51	66	73	73	58	45	40	38
Sat	37	37	37	37	38	40	43	44	45	46	47	45	45	41	40	39	38
Sun	37	37	37	37	38	38	39	41	43	44	42	42	41	39	40	40	38

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	37	38	39	46	47	42	41	41	40	43	53	55	59	50	40	39	38
Tue	37	38	39	46	48	42	41	41	40	42	54	61	68	58	41	40	38
Wed	37	38	40	47	51	45	41	41	41	43	55	65	72	59	43	40	38
Thu	37	38	39	47	49	45	41	41	41	44	54	67	75	62	45	40	38
Fri	37	38	39	43	43	41	42	43	45	51	66	73	73	58	45	40	38
Sat	37	37	37	37	38	40	43	44	45	46	47	45	45	41	40	39	38
Sun	37	37	37	37	38	38	39	41	43	44	42	42	41	39	40	40	38