Best Time to Drive from Diamond Bar to Rialto

Right now (7:04 pm PDT): about 33 minutes via I-10 East, usually 32 at this time.

Only 44% 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 Diamond Bar 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	29	31	32	34	33	34	36	35	37	38	41	47	42	39	36	34	31
Tue	30	31	32	36	33	34	34	35	35	37	41	42	41	40	35	34	31
Wed	29	31	33	35	33	34	35	35	36	37	39	43	43	38	33	35	30
Thu	30	31	32	34	33	33	34	34	35	37	40	41	40	37	33	32	30
Fri	30	31	32	32	34	35	35	36	37	41	43	48	47	41	37	36	31
Sat	30	30	31	31	31	31	31	31	32	33	33	33	34	33	33	31	30
Sun	30	30	30	30	30	30	31	31	31	31	31	31	30	31	32	31	30

About this drive

On weekdays the 31-mile drive from Diamond Bar to Rialto (via I-10 East) usually takes as little as 29 minutes and up to 48 minutes, when leaving around 4 pm on Fridays. The fastest times to leave are before 7 am or after 9 pm. Midday (11 am to 2 pm) it takes about 36 minutes. On weekends it is slowest around 5 pm on Saturdays (34 minutes).

About 28 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 3 miles surface streets (4 to 6 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Diamond Bar 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 Diamond Bar to Rialto?

On weekdays, leave before 7 am or after 9 pm. The drive usually takes about 29 minutes then, versus up to 48 minutes at the worst times.

How long does it take to drive from Diamond Bar to Rialto?

The 31-mile drive usually takes 29 to 48 minutes on weekdays, depending on when you leave, and about 36 minutes midday.

When is traffic worst from Diamond Bar to Rialto?

Leaving around 4 pm on Fridays is usually slowest, about 48 minutes.

Freeways on this drive

I-10 East in Inland Empire (19 miles) · I-10 East in Los Angeles (5 miles) · SR-57 North in Los Angeles (4 miles)

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

More drives

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

Open the live traffic map →

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	29	31	32	34	33	34	36	35	37	38	41	47	42	39	36	34	31
Tue	30	31	32	36	33	34	34	35	35	37	41	42	41	40	35	34	31
Wed	29	31	33	35	33	34	35	35	36	37	39	43	43	38	33	35	30
Thu	30	31	32	34	33	33	34	34	35	37	40	41	40	37	33	32	30
Fri	30	31	32	32	34	35	35	36	37	41	43	48	47	41	37	36	31
Sat	30	30	31	31	31	31	31	31	32	33	33	33	34	33	33	31	30
Sun	30	30	30	30	30	30	31	31	31	31	31	31	30	31	32	31	30

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	29	31	32	34	33	34	36	35	37	38	41	47	42	39	36	34	31
Tue	30	31	32	36	33	34	34	35	35	37	41	42	41	40	35	34	31
Wed	29	31	33	35	33	34	35	35	36	37	39	43	43	38	33	35	30
Thu	30	31	32	34	33	33	34	34	35	37	40	41	40	37	33	32	30
Fri	30	31	32	32	34	35	35	36	37	41	43	48	47	41	37	36	31
Sat	30	30	31	31	31	31	31	31	32	33	33	33	34	33	33	31	30
Sun	30	30	30	30	30	30	31	31	31	31	31	31	30	31	32	31	30

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	29	31	32	34	33	34	36	35	37	38	41	47	42	39	36	34	31
Tue	30	31	32	36	33	34	34	35	35	37	41	42	41	40	35	34	31
Wed	29	31	33	35	33	34	35	35	36	37	39	43	43	38	33	35	30
Thu	30	31	32	34	33	33	34	34	35	37	40	41	40	37	33	32	30
Fri	30	31	32	32	34	35	35	36	37	41	43	48	47	41	37	36	31
Sat	30	30	31	31	31	31	31	31	32	33	33	33	34	33	33	31	30
Sun	30	30	30	30	30	30	31	31	31	31	31	31	30	31	32	31	30