Best Time to Drive from Foster City to Santa Rosa

Right now (3:21 pm PST): about 88 minutes via US-101 North, usually 87 at this time.

Only 32% 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 Foster City to Santa Rosa 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	76	79	86	93	90	84	82	82	82	86	97	96	95	86	79	77	75
Tue	76	79	87	94	93	86	83	82	81	86	98	102	100	90	80	78	76
Wed	76	78	87	95	94	84	83	82	82	87	99	103	101	91	81	78	75
Thu	76	78	88	96	96	85	82	81	82	89	98	103	102	93	84	78	77
Fri	76	78	84	88	85	83	83	84	88	99	107	111	102	92	83	78	75
Sat	76	75	76	76	77	79	83	86	87	85	86	85	84	81	80	79	76
Sun	76	76	75	75	76	78	80	82	84	84	83	83	81	80	80	79	75

About this drive

On weekdays the 84-mile drive from Foster City to Santa Rosa (via US-101 North) usually takes as little as 75 minutes and up to 111 minutes, when leaving around 4 pm on Fridays. The fastest times to leave are before 7 am or after 7 pm. Midday (11 am to 2 pm) it takes about 84 minutes. On weekends it is slowest around 1 pm on Saturdays (87 minutes).

About 81 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 3 miles surface streets (4 to 7 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Foster City to central Santa Rosa 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 Foster City to Santa Rosa?

On weekdays, leave before 7 am or after 7 pm. The drive usually takes about 75 minutes then, versus up to 111 minutes at the worst times.

How long does it take to drive from Foster City to Santa Rosa?

The 84-mile drive usually takes 75 to 111 minutes on weekdays, depending on when you leave, and about 84 minutes midday.

When is traffic worst from Foster City to Santa Rosa?

Leaving around 4 pm on Fridays is usually slowest, about 111 minutes.

Freeways on this drive

US-101 North in Bay Area (56 miles) · I-80 East in Bay Area (14 miles) · I-580 East in Bay Area (9 miles) · SR-92 West in Bay Area (1.3 miles)

Bay Area traffic right now · Bay Area traffic tomorrow

More drives

Santa Rosa to Foster City (return trip) · Foster City to San Jose · Foster City to San Francisco · Foster City to Oakland · Foster City to Stockton · Foster City to Fremont · Foster City to Hayward · Foster City to Salinas · Foster City to Sunnyvale · Foster City to Concord · Foster City to Santa Clara · Foster City to Vallejo

Open the live traffic map →

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	76	79	86	93	90	84	82	82	82	86	97	96	95	86	79	77	75
Tue	76	79	87	94	93	86	83	82	81	86	98	102	100	90	80	78	76
Wed	76	78	87	95	94	84	83	82	82	87	99	103	101	91	81	78	75
Thu	76	78	88	96	96	85	82	81	82	89	98	103	102	93	84	78	77
Fri	76	78	84	88	85	83	83	84	88	99	107	111	102	92	83	78	75
Sat	76	75	76	76	77	79	83	86	87	85	86	85	84	81	80	79	76
Sun	76	76	75	75	76	78	80	82	84	84	83	83	81	80	80	79	75

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	76	79	86	93	90	84	82	82	82	86	97	96	95	86	79	77	75
Tue	76	79	87	94	93	86	83	82	81	86	98	102	100	90	80	78	76
Wed	76	78	87	95	94	84	83	82	82	87	99	103	101	91	81	78	75
Thu	76	78	88	96	96	85	82	81	82	89	98	103	102	93	84	78	77
Fri	76	78	84	88	85	83	83	84	88	99	107	111	102	92	83	78	75
Sat	76	75	76	76	77	79	83	86	87	85	86	85	84	81	80	79	76
Sun	76	76	75	75	76	78	80	82	84	84	83	83	81	80	80	79	75

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	76	79	86	93	90	84	82	82	82	86	97	96	95	86	79	77	75
Tue	76	79	87	94	93	86	83	82	81	86	98	102	100	90	80	78	76
Wed	76	78	87	95	94	84	83	82	82	87	99	103	101	91	81	78	75
Thu	76	78	88	96	96	85	82	81	82	89	98	103	102	93	84	78	77
Fri	76	78	84	88	85	83	83	84	88	99	107	111	102	92	83	78	75
Sat	76	75	76	76	77	79	83	86	87	85	86	85	84	81	80	79	76
Sun	76	76	75	75	76	78	80	82	84	84	83	83	81	80	80	79	75