Best Time to Drive from Diamond Bar to Redlands

Right now (12:51 am PST): about 36 minutes via I-10 East.

Only 13% 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 Redlands 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	35	37	38	40	40	40	41	41	42	44	49	64	64	51	44	41	37
Tue	35	36	39	41	39	39	40	40	41	46	60	69	69	54	44	41	37
Wed	35	37	39	40	40	40	41	41	41	47	55	64	64	52	41	41	37
Thu	36	37	39	41	40	40	40	41	42	50	62	65	65	54	43	40	37
Fri	36	37	39	40	40	42	42	44	46	54	69	71	68	58	49	43	38
Sat	36	37	37	37	38	38	38	40	41	43	43	42	44	42	42	39	37
Sun	37	36	36	37	37	37	38	38	39	39	39	38	39	39	40	39	37

About this drive

On weekdays the 40-mile drive from Diamond Bar to Redlands (via I-10 East) usually takes as little as 35 minutes and up to 72 minutes, when leaving around 3:30 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 43 minutes. On weekends it is slowest around 5:30 pm on Saturdays (45 minutes).

About 39 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 0.9 miles surface streets (1 to 2 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 Redlands 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 Redlands?

On weekdays, leave before 7 am or after 9 pm. The drive usually takes about 35 minutes then, versus up to 72 minutes at the worst times.

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

The 40-mile drive usually takes 35 to 72 minutes on weekdays, depending on when you leave, and about 43 minutes midday.

When is traffic worst from Diamond Bar to Redlands?

Leaving around 3:30 pm on Fridays is usually slowest, about 72 minutes.

Freeways on this drive

I-10 East in Inland Empire (30 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

Redlands 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	35	37	38	40	40	40	41	41	42	44	49	64	64	51	44	41	37
Tue	35	36	39	41	39	39	40	40	41	46	60	69	69	54	44	41	37
Wed	35	37	39	40	40	40	41	41	41	47	55	64	64	52	41	41	37
Thu	36	37	39	41	40	40	40	41	42	50	62	65	65	54	43	40	37
Fri	36	37	39	40	40	42	42	44	46	54	69	71	68	58	49	43	38
Sat	36	37	37	37	38	38	38	40	41	43	43	42	44	42	42	39	37
Sun	37	36	36	37	37	37	38	38	39	39	39	38	39	39	40	39	37

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	35	37	38	40	40	40	41	41	42	44	49	64	64	51	44	41	37
Tue	35	36	39	41	39	39	40	40	41	46	60	69	69	54	44	41	37
Wed	35	37	39	40	40	40	41	41	41	47	55	64	64	52	41	41	37
Thu	36	37	39	41	40	40	40	41	42	50	62	65	65	54	43	40	37
Fri	36	37	39	40	40	42	42	44	46	54	69	71	68	58	49	43	38
Sat	36	37	37	37	38	38	38	40	41	43	43	42	44	42	42	39	37
Sun	37	36	36	37	37	37	38	38	39	39	39	38	39	39	40	39	37

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	35	37	38	40	40	40	41	41	42	44	49	64	64	51	44	41	37
Tue	35	36	39	41	39	39	40	40	41	46	60	69	69	54	44	41	37
Wed	35	37	39	40	40	40	41	41	41	47	55	64	64	52	41	41	37
Thu	36	37	39	41	40	40	40	41	42	50	62	65	65	54	43	40	37
Fri	36	37	39	40	40	42	42	44	46	54	69	71	68	58	49	43	38
Sat	36	37	37	37	38	38	38	40	41	43	43	42	44	42	42	39	37
Sun	37	36	36	37	37	37	38	38	39	39	39	38	39	39	40	39	37