Best Time to Drive from Monrovia to Rialto

Right now (12:51 am PST): about 38 minutes via I-210 East.

Only 29% 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 Monrovia to Rialto 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	38	38	44	45	44	43	43	44	45	55	66	68	74	65	48	41	38
Tue	38	39	45	46	43	44	43	43	45	51	68	74	76	65	50	44	39
Wed	38	39	44	47	43	43	43	44	45	51	67	75	76	64	50	45	39
Thu	38	39	44	46	43	43	44	44	45	55	70	77	75	63	51	44	39
Fri	38	39	42	43	43	44	43	48	52	67	85	83	80	65	53	46	41
Sat	38	39	39	39	40	40	42	43	44	47	49	50	52	49	44	41	39
Sun	38	38	38	38	39	39	40	40	42	42	43	41	41	41	40	41	39

About this drive

On weekdays the 40-mile drive from Monrovia to Rialto (via I-210 East) usually takes as little as 38 minutes and up to 85 minutes, when leaving around 3 pm on Fridays. The fastest times to leave are before 6:30 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 36 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 4 miles surface streets (6 to 11 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Monrovia to central Rialto 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 Monrovia to Rialto?

On weekdays, leave before 6:30 am or after 9 pm. The drive usually takes about 38 minutes then, versus up to 85 minutes at the worst times.

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

The 40-mile drive usually takes 38 to 85 minutes on weekdays, depending on when you leave, and about 47 minutes midday.

When is traffic worst from Monrovia to Rialto?

Leaving around 3 pm on Fridays is usually slowest, about 85 minutes.

Freeways on this drive

I-210 East in Inland Empire (19 miles) · I-210 East in Los Angeles (18 miles)

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

More drives

Rialto to Monrovia (return trip) · Monrovia to Los Angeles · Monrovia to Long Beach · Monrovia to Anaheim · Monrovia to Riverside · Monrovia to Santa Ana · Monrovia to Irvine · Monrovia to San Bernardino · Monrovia to Fontana · Monrovia to Oxnard · Monrovia to Moreno Valley · Monrovia to Huntington Beach

Open the live traffic map →

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	38	38	44	45	44	43	43	44	45	55	66	68	74	65	48	41	38
Tue	38	39	45	46	43	44	43	43	45	51	68	74	76	65	50	44	39
Wed	38	39	44	47	43	43	43	44	45	51	67	75	76	64	50	45	39
Thu	38	39	44	46	43	43	44	44	45	55	70	77	75	63	51	44	39
Fri	38	39	42	43	43	44	43	48	52	67	85	83	80	65	53	46	41
Sat	38	39	39	39	40	40	42	43	44	47	49	50	52	49	44	41	39
Sun	38	38	38	38	39	39	40	40	42	42	43	41	41	41	40	41	39

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	38	38	44	45	44	43	43	44	45	55	66	68	74	65	48	41	38
Tue	38	39	45	46	43	44	43	43	45	51	68	74	76	65	50	44	39
Wed	38	39	44	47	43	43	43	44	45	51	67	75	76	64	50	45	39
Thu	38	39	44	46	43	43	44	44	45	55	70	77	75	63	51	44	39
Fri	38	39	42	43	43	44	43	48	52	67	85	83	80	65	53	46	41
Sat	38	39	39	39	40	40	42	43	44	47	49	50	52	49	44	41	39
Sun	38	38	38	38	39	39	40	40	42	42	43	41	41	41	40	41	39

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	38	38	44	45	44	43	43	44	45	55	66	68	74	65	48	41	38
Tue	38	39	45	46	43	44	43	43	45	51	68	74	76	65	50	44	39
Wed	38	39	44	47	43	43	43	44	45	51	67	75	76	64	50	45	39
Thu	38	39	44	46	43	43	44	44	45	55	70	77	75	63	51	44	39
Fri	38	39	42	43	43	44	43	48	52	67	85	83	80	65	53	46	41
Sat	38	39	39	39	40	40	42	43	44	47	49	50	52	49	44	41	39
Sun	38	38	38	38	39	39	40	40	42	42	43	41	41	41	40	41	39