Best Time to Drive from Rialto to Monrovia

Right now (12:51 am PST): about 37 minutes via I-210 West.

Only 27% 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 Rialto 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	37	59	60	64	52	46	43	42	41	41	40	39	40	40	38	38	37
Tue	37	63	64	67	57	46	43	41	41	41	40	40	40	40	38	38	37
Wed	37	62	63	69	54	47	44	42	42	41	41	40	41	40	39	38	37
Thu	37	58	61	64	52	45	42	41	41	41	41	40	41	42	38	38	37
Fri	37	46	48	49	45	44	44	42	42	41	41	41	43	46	40	38	38
Sat	37	38	38	38	39	40	41	41	42	42	42	42	42	41	39	38	37
Sun	37	37	37	37	38	38	40	42	43	42	41	41	42	41	40	40	37

About this drive

On weekdays the 40-mile drive from Rialto to Monrovia (via I-210 West) usually takes as little as 37 minutes and up to 69 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 42 minutes. On weekends it is slowest around 1 pm on Sundays (43 minutes).

About 37 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 3 miles surface streets (4 to 11 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Rialto 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 Rialto to Monrovia?

On weekdays, leave before 5:30 am or after 7 pm. The drive usually takes about 37 minutes then, versus up to 69 minutes at the worst times.

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

The 40-mile drive usually takes 37 to 69 minutes on weekdays, depending on when you leave, and about 42 minutes midday.

When is traffic worst from Rialto to Monrovia?

Leaving around 8 am on Wednesdays is usually slowest, about 69 minutes.

Freeways on this drive

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

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

More drives

Monrovia to Rialto (return trip) · Rialto to Los Angeles · Rialto to Long Beach · Rialto to Anaheim · Rialto to Riverside · Rialto to Santa Ana · Rialto to Irvine · Rialto to Moreno Valley · Rialto to Huntington Beach · Rialto to Glendale · Rialto to Santa Clarita · Rialto 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	37	59	60	64	52	46	43	42	41	41	40	39	40	40	38	38	37
Tue	37	63	64	67	57	46	43	41	41	41	40	40	40	40	38	38	37
Wed	37	62	63	69	54	47	44	42	42	41	41	40	41	40	39	38	37
Thu	37	58	61	64	52	45	42	41	41	41	41	40	41	42	38	38	37
Fri	37	46	48	49	45	44	44	42	42	41	41	41	43	46	40	38	38
Sat	37	38	38	38	39	40	41	41	42	42	42	42	42	41	39	38	37
Sun	37	37	37	37	38	38	40	42	43	42	41	41	42	41	40	40	37

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	37	59	60	64	52	46	43	42	41	41	40	39	40	40	38	38	37
Tue	37	63	64	67	57	46	43	41	41	41	40	40	40	40	38	38	37
Wed	37	62	63	69	54	47	44	42	42	41	41	40	41	40	39	38	37
Thu	37	58	61	64	52	45	42	41	41	41	41	40	41	42	38	38	37
Fri	37	46	48	49	45	44	44	42	42	41	41	41	43	46	40	38	38
Sat	37	38	38	38	39	40	41	41	42	42	42	42	42	41	39	38	37
Sun	37	37	37	37	38	38	40	42	43	42	41	41	42	41	40	40	37

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	37	59	60	64	52	46	43	42	41	41	40	39	40	40	38	38	37
Tue	37	63	64	67	57	46	43	41	41	41	40	40	40	40	38	38	37
Wed	37	62	63	69	54	47	44	42	42	41	41	40	41	40	39	38	37
Thu	37	58	61	64	52	45	42	41	41	41	41	40	41	42	38	38	37
Fri	37	46	48	49	45	44	44	42	42	41	41	41	43	46	40	38	38
Sat	37	38	38	38	39	40	41	41	42	42	42	42	42	41	39	38	37
Sun	37	37	37	37	38	38	40	42	43	42	41	41	42	41	40	40	37