Best Time to Drive from Pittsburg to South San Francisco

Right now (12:51 am PDT): about 50 minutes via I-80 West and SR-4 West.

Only 68% 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 Pittsburg to South 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	49	66	95	90	70	61	58	56	56	57	59	56	59	52	51	50	49
Tue	48	67	105	101	77	64	60	55	54	56	58	57	64	56	51	50	49
Wed	48	66	100	97	76	65	61	56	55	55	58	60	68	58	51	50	49
Thu	48	67	102	99	75	65	61	58	56	58	63	67	73	61	52	50	49
Fri	48	58	76	76	61	56	56	57	58	59	62	61	68	60	55	51	49
Sat	49	49	50	50	52	55	63	66	65	65	66	65	66	61	57	53	51
Sun	49	49	49	49	50	52	57	61	67	66	66	64	65	62	59	54	49

About this drive

On weekdays the 55-mile drive from Pittsburg to South San Francisco (via I-80 West and SR-4 West) usually takes as little as 48 minutes and up to 106 minutes, when leaving around 7:30 am on Thursdays. The fastest times to leave are before 5:30 am or after 7 pm. Midday (11 am to 2 pm) it takes about 57 minutes. On weekends it is slowest around 1:30 pm on Sundays (68 minutes).

About 53 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 2 miles surface streets (2 to 5 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Pittsburg to central South 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 Pittsburg to South San Francisco?

On weekdays, leave before 5:30 am or after 7 pm. The drive usually takes about 48 minutes then, versus up to 106 minutes at the worst times.

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

The 55-mile drive usually takes 48 to 106 minutes on weekdays, depending on when you leave, and about 57 minutes midday.

When is traffic worst from Pittsburg to South San Francisco?

Leaving around 7:30 am on Thursdays is usually slowest, about 106 minutes.

Freeways on this drive

I-80 West in Bay Area (25 miles) · SR-4 West in Bay Area (22 miles) · US-101 South in Bay Area (5 miles)

Bay Area traffic right now · Bay Area traffic tomorrow

More drives

South San Francisco to Pittsburg (return trip) · Pittsburg to San Jose · Pittsburg to San Francisco · Pittsburg to Sacramento · Pittsburg to Oakland · Pittsburg to Stockton · Pittsburg to Fremont · Pittsburg to Modesto · Pittsburg to Santa Rosa · Pittsburg to Elk Grove · Pittsburg to Hayward · Pittsburg to Sunnyvale

Open the live traffic map →

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	49	66	95	90	70	61	58	56	56	57	59	56	59	52	51	50	49
Tue	48	67	105	101	77	64	60	55	54	56	58	57	64	56	51	50	49
Wed	48	66	100	97	76	65	61	56	55	55	58	60	68	58	51	50	49
Thu	48	67	102	99	75	65	61	58	56	58	63	67	73	61	52	50	49
Fri	48	58	76	76	61	56	56	57	58	59	62	61	68	60	55	51	49
Sat	49	49	50	50	52	55	63	66	65	65	66	65	66	61	57	53	51
Sun	49	49	49	49	50	52	57	61	67	66	66	64	65	62	59	54	49

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	49	66	95	90	70	61	58	56	56	57	59	56	59	52	51	50	49
Tue	48	67	105	101	77	64	60	55	54	56	58	57	64	56	51	50	49
Wed	48	66	100	97	76	65	61	56	55	55	58	60	68	58	51	50	49
Thu	48	67	102	99	75	65	61	58	56	58	63	67	73	61	52	50	49
Fri	48	58	76	76	61	56	56	57	58	59	62	61	68	60	55	51	49
Sat	49	49	50	50	52	55	63	66	65	65	66	65	66	61	57	53	51
Sun	49	49	49	49	50	52	57	61	67	66	66	64	65	62	59	54	49

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	49	66	95	90	70	61	58	56	56	57	59	56	59	52	51	50	49
Tue	48	67	105	101	77	64	60	55	54	56	58	57	64	56	51	50	49
Wed	48	66	100	97	76	65	61	56	55	55	58	60	68	58	51	50	49
Thu	48	67	102	99	75	65	61	58	56	58	63	67	73	61	52	50	49
Fri	48	58	76	76	61	56	56	57	58	59	62	61	68	60	55	51	49
Sat	49	49	50	50	52	55	63	66	65	65	66	65	66	61	57	53	51
Sun	49	49	49	49	50	52	57	61	67	66	66	64	65	62	59	54	49