Best Time to Drive from San Francisco to Fremont

Right now (12:33 pm PDT): about 46 minutes via I-880 South, usually 46 at this time.

Only 52% 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 San Francisco to Fremont 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	48	66	65	58	53	50	51	48	47	50	54	54	49	44	41	40
Tue	36	54	67	68	57	53	49	46	45	46	50	55	60	52	45	42	38
Wed	36	49	66	65	54	49	47	45	44	46	48	54	58	50	43	41	39
Thu	37	50	67	68	54	52	50	48	47	50	51	55	60	55	42	40	38
Fri	37	44	49	51	48	46	46	46	47	49	51	56	58	53	45	40	38
Sat	37	38	38	38	39	41	46	46	47	48	49	51	52	48	44	41	38
Sun	38	38	38	39	39	42	44	46	45	47	46	45	47	45	43	42	38

About this drive

On weekdays the 38-mile drive from San Francisco to Fremont (via I-880 South) usually takes as little as 36 minutes and up to 68 minutes, when leaving around 7:30 am on Tuesdays. The fastest times to leave are before 5:30 am or after 9 pm. Midday (11 am to 2 pm) it takes about 47 minutes. On weekends it is slowest around 5 pm on Saturdays (52 minutes).

About 32 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 6 miles surface streets (10 to 18 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from downtown San Francisco (Market Street) to central Fremont (Mowry Avenue) 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 San Francisco to Fremont?

On weekdays, leave before 5:30 am or after 9 pm. The drive usually takes about 36 minutes then, versus up to 68 minutes at the worst times.

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

The 38-mile drive usually takes 36 to 68 minutes on weekdays, depending on when you leave, and about 47 minutes midday.

When is traffic worst from San Francisco to Fremont?

Leaving around 7:30 am on Tuesdays is usually slowest, about 68 minutes.

Freeways on this drive

I-880 South in Bay Area (26 miles) · I-80 East in Bay Area (5 miles)

Bay Area traffic right now · Bay Area traffic tomorrow

More drives

Fremont to San Francisco (return trip) · San Francisco to San Jose · San Francisco to Palo Alto · San Francisco to Berkeley · San Francisco to Walnut Creek · San Francisco to San Mateo · San Francisco to Hayward · San Francisco to Mountain View · San Francisco to Pleasanton · San Francisco to Santa Clara · San Francisco to Richmond · San Francisco to Sacramento

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	48	66	65	58	53	50	51	48	47	50	54	54	49	44	41	40
Tue	36	54	67	68	57	53	49	46	45	46	50	55	60	52	45	42	38
Wed	36	49	66	65	54	49	47	45	44	46	48	54	58	50	43	41	39
Thu	37	50	67	68	54	52	50	48	47	50	51	55	60	55	42	40	38
Fri	37	44	49	51	48	46	46	46	47	49	51	56	58	53	45	40	38
Sat	37	38	38	38	39	41	46	46	47	48	49	51	52	48	44	41	38
Sun	38	38	38	39	39	42	44	46	45	47	46	45	47	45	43	42	38

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	37	48	66	65	58	53	50	51	48	47	50	54	54	49	44	41	40
Tue	36	54	67	68	57	53	49	46	45	46	50	55	60	52	45	42	38
Wed	36	49	66	65	54	49	47	45	44	46	48	54	58	50	43	41	39
Thu	37	50	67	68	54	52	50	48	47	50	51	55	60	55	42	40	38
Fri	37	44	49	51	48	46	46	46	47	49	51	56	58	53	45	40	38
Sat	37	38	38	38	39	41	46	46	47	48	49	51	52	48	44	41	38
Sun	38	38	38	39	39	42	44	46	45	47	46	45	47	45	43	42	38

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	37	48	66	65	58	53	50	51	48	47	50	54	54	49	44	41	40
Tue	36	54	67	68	57	53	49	46	45	46	50	55	60	52	45	42	38
Wed	36	49	66	65	54	49	47	45	44	46	48	54	58	50	43	41	39
Thu	37	50	67	68	54	52	50	48	47	50	51	55	60	55	42	40	38
Fri	37	44	49	51	48	46	46	46	47	49	51	56	58	53	45	40	38
Sat	37	38	38	38	39	41	46	46	47	48	49	51	52	48	44	41	38
Sun	38	38	38	39	39	42	44	46	45	47	46	45	47	45	43	42	38