Best Time to Drive from San Bernardino to Diamond Bar

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

Only 77% 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 San Bernardino to Diamond Bar 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	34	46	56	61	50	43	44	43	43	44	49	45	47	40	35	35	34
Tue	34	47	56	62	51	45	44	41	40	42	47	47	46	40	34	34	33
Wed	35	48	58	69	56	45	55	47	41	42	46	46	52	45	35	34	33
Thu	35	45	54	65	51	44	42	42	43	42	49	48	51	45	36	35	34
Fri	33	39	45	50	47	43	43	43	45	44	47	47	46	41	36	34	34
Sat	34	35	35	35	36	37	39	39	39	39	38	38	37	37	36	35	34
Sun	34	34	34	35	35	36	38	39	39	37	37	36	36	36	36	36	34

About this drive

On weekdays the 37-mile drive from San Bernardino to Diamond Bar (via SR-60 West and I-215 South) usually takes as little as 33 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 43 minutes. On weekends it is slowest around 12:30 pm on Saturdays (40 minutes).

About 36 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 0.9 miles surface streets (1 to 3 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central San Bernardino to central Diamond Bar 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 San Bernardino to Diamond Bar?

On weekdays, leave before 5:30 am or after 7 pm. The drive usually takes about 33 minutes then, versus up to 69 minutes at the worst times.

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

The 37-mile drive usually takes 33 to 69 minutes on weekdays, depending on when you leave, and about 43 minutes midday.

When is traffic worst from San Bernardino to Diamond Bar?

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

Freeways on this drive

SR-60 West in Inland Empire (18 miles) · I-215 South in Inland Empire (11 miles) · SR-60 West in Los Angeles (7 miles)

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

More drives

Diamond Bar to San Bernardino (return trip) · San Bernardino to Los Angeles · San Bernardino to Santa Monica · San Bernardino to Pasadena · San Bernardino to Long Beach · San Bernardino to West Covina · San Bernardino to Burbank · San Bernardino to Glendale · San Bernardino to Van Nuys · San Bernardino to Torrance · San Bernardino to LAX · San Bernardino to Hollywood

Open the live traffic map →

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	34	46	56	61	50	43	44	43	43	44	49	45	47	40	35	35	34
Tue	34	47	56	62	51	45	44	41	40	42	47	47	46	40	34	34	33
Wed	35	48	58	69	56	45	55	47	41	42	46	46	52	45	35	34	33
Thu	35	45	54	65	51	44	42	42	43	42	49	48	51	45	36	35	34
Fri	33	39	45	50	47	43	43	43	45	44	47	47	46	41	36	34	34
Sat	34	35	35	35	36	37	39	39	39	39	38	38	37	37	36	35	34
Sun	34	34	34	35	35	36	38	39	39	37	37	36	36	36	36	36	34

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	34	46	56	61	50	43	44	43	43	44	49	45	47	40	35	35	34
Tue	34	47	56	62	51	45	44	41	40	42	47	47	46	40	34	34	33
Wed	35	48	58	69	56	45	55	47	41	42	46	46	52	45	35	34	33
Thu	35	45	54	65	51	44	42	42	43	42	49	48	51	45	36	35	34
Fri	33	39	45	50	47	43	43	43	45	44	47	47	46	41	36	34	34
Sat	34	35	35	35	36	37	39	39	39	39	38	38	37	37	36	35	34
Sun	34	34	34	35	35	36	38	39	39	37	37	36	36	36	36	36	34

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	34	46	56	61	50	43	44	43	43	44	49	45	47	40	35	35	34
Tue	34	47	56	62	51	45	44	41	40	42	47	47	46	40	34	34	33
Wed	35	48	58	69	56	45	55	47	41	42	46	46	52	45	35	34	33
Thu	35	45	54	65	51	44	42	42	43	42	49	48	51	45	36	35	34
Fri	33	39	45	50	47	43	43	43	45	44	47	47	46	41	36	34	34
Sat	34	35	35	35	36	37	39	39	39	39	38	38	37	37	36	35	34
Sun	34	34	34	35	35	36	38	39	39	37	37	36	36	36	36	36	34