Best Time to Drive from Diamond Bar to San Bernardino

Right now (5:33 pm PDT): about 38 minutes via SR-60 East and I-215 North, usually 38 at this time.

Only 76% 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 San Bernardino 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	33	36	40	43	40	39	40	41	41	46	50	59	55	41	37	36	34
Tue	33	36	42	46	41	42	42	42	43	42	51	57	57	43	37	36	35
Wed	33	36	45	48	42	41	40	40	41	45	52	55	56	44	37	36	34
Thu	33	36	42	46	40	41	40	41	42	46	56	57	64	47	39	40	35
Fri	33	35	38	40	39	39	41	42	43	51	58	61	55	49	42	37	35
Sat	34	34	35	35	35	36	37	37	36	38	39	42	38	39	37	35	34
Sun	34	34	35	35	35	35	37	36	37	35	36	35	36	35	35	36	34

About this drive

On weekdays the 37-mile drive from Diamond Bar to San Bernardino (via SR-60 East and I-215 North) usually takes as little as 33 minutes and up to 64 minutes, when leaving around 5 pm on Thursdays. The fastest times to leave are before 6:30 am or after 8:30 pm. Midday (11 am to 2 pm) it takes about 42 minutes. On weekends it is slowest around 4 pm on Saturdays (42 minutes).

About 36 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 1.3 miles surface streets (2 to 3 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 San Bernardino 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 San Bernardino?

On weekdays, leave before 6:30 am or after 8:30 pm. The drive usually takes about 33 minutes then, versus up to 64 minutes at the worst times.

How long does it take to drive from Diamond Bar to San Bernardino?

The 37-mile drive usually takes 33 to 64 minutes on weekdays, depending on when you leave, and about 42 minutes midday.

When is traffic worst from Diamond Bar to San Bernardino?

Leaving around 5 pm on Thursdays is usually slowest, about 64 minutes.

Freeways on this drive

SR-60 East in Inland Empire (21 miles) · I-215 North in Inland Empire (8 miles) · SR-60 East in Los Angeles (7 miles)

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

More drives

San Bernardino 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 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	33	36	40	43	40	39	40	41	41	46	50	59	55	41	37	36	34
Tue	33	36	42	46	41	42	42	42	43	42	51	57	57	43	37	36	35
Wed	33	36	45	48	42	41	40	40	41	45	52	55	56	44	37	36	34
Thu	33	36	42	46	40	41	40	41	42	46	56	57	64	47	39	40	35
Fri	33	35	38	40	39	39	41	42	43	51	58	61	55	49	42	37	35
Sat	34	34	35	35	35	36	37	37	36	38	39	42	38	39	37	35	34
Sun	34	34	35	35	35	35	37	36	37	35	36	35	36	35	35	36	34

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	33	36	40	43	40	39	40	41	41	46	50	59	55	41	37	36	34
Tue	33	36	42	46	41	42	42	42	43	42	51	57	57	43	37	36	35
Wed	33	36	45	48	42	41	40	40	41	45	52	55	56	44	37	36	34
Thu	33	36	42	46	40	41	40	41	42	46	56	57	64	47	39	40	35
Fri	33	35	38	40	39	39	41	42	43	51	58	61	55	49	42	37	35
Sat	34	34	35	35	35	36	37	37	36	38	39	42	38	39	37	35	34
Sun	34	34	35	35	35	35	37	36	37	35	36	35	36	35	35	36	34

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	33	36	40	43	40	39	40	41	41	46	50	59	55	41	37	36	34
Tue	33	36	42	46	41	42	42	42	43	42	51	57	57	43	37	36	35
Wed	33	36	45	48	42	41	40	40	41	45	52	55	56	44	37	36	34
Thu	33	36	42	46	40	41	40	41	42	46	56	57	64	47	39	40	35
Fri	33	35	38	40	39	39	41	42	43	51	58	61	55	49	42	37	35
Sat	34	34	35	35	35	36	37	37	36	38	39	42	38	39	37	35	34
Sun	34	34	35	35	35	35	37	36	37	35	36	35	36	35	35	36	34