Best Time to Drive from Fontana to Monrovia

Right now (7:49 pm PDT): about 41 minutes via I-210 West, usually 37 at this time.

Only 53% 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 Fontana to Monrovia 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	35	56	56	57	48	44	41	40	40	39	39	39	39	38	37	36	36
Tue	35	60	62	65	57	45	41	39	40	39	38	39	40	38	37	36	35
Wed	35	59	61	66	51	46	42	41	40	40	39	39	40	41	37	37	36
Thu	36	59	62	64	51	44	42	39	39	39	39	41	42	41	37	37	36
Fri	35	46	48	51	44	43	41	40	39	39	40	43	46	45	39	36	36
Sat	36	36	36	36	37	39	40	40	40	40	41	41	39	39	37	36	36
Sun	35	35	35	36	37	37	38	41	41	41	39	39	39	38	38	39	36

About this drive

On weekdays the 37-mile drive from Fontana to Monrovia (via I-210 West) usually takes as little as 35 minutes and up to 66 minutes, when leaving around 8 am on Wednesdays. The fastest times to leave are before 5:30 am or after 7 pm. Midday (11 am to 2 pm) it takes about 40 minutes. On weekends it is slowest around 12:30 pm on Sundays (41 minutes).

About 33 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 4 miles surface streets (6 to 13 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Fontana to central Monrovia 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 Fontana to Monrovia?

On weekdays, leave before 5:30 am or after 7 pm. The drive usually takes about 35 minutes then, versus up to 66 minutes at the worst times.

How long does it take to drive from Fontana to Monrovia?

The 37-mile drive usually takes 35 to 66 minutes on weekdays, depending on when you leave, and about 40 minutes midday.

When is traffic worst from Fontana to Monrovia?

Leaving around 8 am on Wednesdays is usually slowest, about 66 minutes.

Freeways on this drive

I-210 West in Los Angeles (18 miles) · I-210 West in Inland Empire (15 miles)

Inland Empire traffic right now · Inland Empire traffic tomorrow · Los Angeles traffic right now · Los Angeles traffic tomorrow

More drives

Monrovia to Fontana (return trip) · Fontana to Los Angeles · Fontana to Long Beach · Fontana to Anaheim · Fontana to Santa Ana · Fontana to Irvine · Fontana to San Bernardino · Fontana to Moreno Valley · Fontana to Huntington Beach · Fontana to Glendale · Fontana to Santa Clarita · Fontana to Oceanside

Open the live traffic map →

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	35	56	56	57	48	44	41	40	40	39	39	39	39	38	37	36	36
Tue	35	60	62	65	57	45	41	39	40	39	38	39	40	38	37	36	35
Wed	35	59	61	66	51	46	42	41	40	40	39	39	40	41	37	37	36
Thu	36	59	62	64	51	44	42	39	39	39	39	41	42	41	37	37	36
Fri	35	46	48	51	44	43	41	40	39	39	40	43	46	45	39	36	36
Sat	36	36	36	36	37	39	40	40	40	40	41	41	39	39	37	36	36
Sun	35	35	35	36	37	37	38	41	41	41	39	39	39	38	38	39	36

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	35	56	56	57	48	44	41	40	40	39	39	39	39	38	37	36	36
Tue	35	60	62	65	57	45	41	39	40	39	38	39	40	38	37	36	35
Wed	35	59	61	66	51	46	42	41	40	40	39	39	40	41	37	37	36
Thu	36	59	62	64	51	44	42	39	39	39	39	41	42	41	37	37	36
Fri	35	46	48	51	44	43	41	40	39	39	40	43	46	45	39	36	36
Sat	36	36	36	36	37	39	40	40	40	40	41	41	39	39	37	36	36
Sun	35	35	35	36	37	37	38	41	41	41	39	39	39	38	38	39	36

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	35	56	56	57	48	44	41	40	40	39	39	39	39	38	37	36	36
Tue	35	60	62	65	57	45	41	39	40	39	38	39	40	38	37	36	35
Wed	35	59	61	66	51	46	42	41	40	40	39	39	40	41	37	37	36
Thu	36	59	62	64	51	44	42	39	39	39	39	41	42	41	37	37	36
Fri	35	46	48	51	44	43	41	40	39	39	40	43	46	45	39	36	36
Sat	36	36	36	36	37	39	40	40	40	40	41	41	39	39	37	36	36
Sun	35	35	35	36	37	37	38	41	41	41	39	39	39	38	38	39	36