Best Time to Drive from Santa Rosa to Union City

Right now (6:03 pm PDT): about 99 minutes via US-101 South and I-880 South, usually 84 at this time.

Typical drive time by departure time

Minutes from Santa Rosa to Union City 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	102	118	107	96	89	89	87	87	89	90	90	88	78	75	74	73
Tue	76	113	144	120	103	89	86	85	86	89	94	97	95	81	75	74	73
Wed	76	114	130	114	99	90	87	86	88	89	96	99	97	83	75	74	74
Thu	76	113	141	119	101	91	88	87	89	94	102	106	100	83	76	74	73
Fri	74	90	102	94	86	84	86	88	91	94	99	96	94	84	78	74	74
Sat	73	72	74	74	76	80	89	94	91	93	93	93	92	84	79	77	73
Sun	73	73	73	73	74	78	83	91	92	92	92	92	88	84	80	76	72

About this drive

On weekdays the 80-mile drive from Santa Rosa to Union City (via US-101 South and I-880 South) usually takes as little as 73 minutes and up to 144 minutes, when leaving around 7 am on Tuesdays. The fastest times to leave are before 5:30 am or after 6:30 pm. Midday (11 am to 2 pm) it takes about 88 minutes. On weekends it is slowest around 4:30 pm on Saturdays (94 minutes).

About 76 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 4 miles surface streets (5 to 12 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 Union City 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 Union City?

On weekdays, leave before 5:30 am or after 6:30 pm. The drive usually takes about 73 minutes then, versus up to 144 minutes at the worst times.

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

The 80-mile drive usually takes 73 to 144 minutes on weekdays, depending on when you leave, and about 88 minutes midday.

When is traffic worst from Santa Rosa to Union City?

Leaving around 7 am on Tuesdays is usually slowest, about 144 minutes.

Freeways on this drive

US-101 South in Bay Area (36 miles) · I-880 South in Bay Area (21 miles) · I-580 West in Bay Area (13 miles) · I-80 West in Bay Area (5 miles)

Bay Area traffic right now · Bay Area traffic tomorrow

More drives

Union City 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

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	102	118	107	96	89	89	87	87	89	90	90	88	78	75	74	73
Tue	76	113	144	120	103	89	86	85	86	89	94	97	95	81	75	74	73
Wed	76	114	130	114	99	90	87	86	88	89	96	99	97	83	75	74	74
Thu	76	113	141	119	101	91	88	87	89	94	102	106	100	83	76	74	73
Fri	74	90	102	94	86	84	86	88	91	94	99	96	94	84	78	74	74
Sat	73	72	74	74	76	80	89	94	91	93	93	93	92	84	79	77	73
Sun	73	73	73	73	74	78	83	91	92	92	92	92	88	84	80	76	72

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	76	102	118	107	96	89	89	87	87	89	90	90	88	78	75	74	73
Tue	76	113	144	120	103	89	86	85	86	89	94	97	95	81	75	74	73
Wed	76	114	130	114	99	90	87	86	88	89	96	99	97	83	75	74	74
Thu	76	113	141	119	101	91	88	87	89	94	102	106	100	83	76	74	73
Fri	74	90	102	94	86	84	86	88	91	94	99	96	94	84	78	74	74
Sat	73	72	74	74	76	80	89	94	91	93	93	93	92	84	79	77	73
Sun	73	73	73	73	74	78	83	91	92	92	92	92	88	84	80	76	72

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	76	102	118	107	96	89	89	87	87	89	90	90	88	78	75	74	73
Tue	76	113	144	120	103	89	86	85	86	89	94	97	95	81	75	74	73
Wed	76	114	130	114	99	90	87	86	88	89	96	99	97	83	75	74	74
Thu	76	113	141	119	101	91	88	87	89	94	102	106	100	83	76	74	73
Fri	74	90	102	94	86	84	86	88	91	94	99	96	94	84	78	74	74
Sat	73	72	74	74	76	80	89	94	91	93	93	93	92	84	79	77	73
Sun	73	73	73	73	74	78	83	91	92	92	92	92	88	84	80	76	72