Best Time to Drive from Lancaster to Diamond Bar

Right now (6:06 pm PDT): about 124 minutes via I-210 East and SR-14 South, usually 110 at this time.

Only 16% 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 Lancaster 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	112	115	113	112	112	113	113	113	119	126	130	131	120	110	109	107	107
Tue	112	114	114	112	113	112	113	114	119	127	129	130	123	114	109	107	107
Wed	112	115	113	113	114	114	114	115	122	128	130	132	123	115	110	107	107
Thu	112	115	114	113	114	113	113	116	125	132	134	136	125	115	110	107	107
Fri	111	114	112	114	114	115	120	126	134	139	138	135	124	116	111	108	107
Sat	108	108	109	109	111	113	115	115	119	120	120	114	112	109	109	107	107
Sun	108	108	108	108	109	110	110	111	112	110	112	110	108	109	110	107	107

About this drive

On weekdays the 86-mile drive from Lancaster to Diamond Bar (via I-210 East and SR-14 South) usually takes as little as 107 minutes and up to 139 minutes, when leaving around 2 pm on Fridays. The fastest times to leave are before 12:30 pm or after 6 pm. Midday (11 am to 2 pm) it takes about 121 minutes. On weekends it is slowest around 1:30 pm on Saturdays (120 minutes).

About 40 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 46 miles surface streets (about 65 minutes), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Lancaster 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 Lancaster to Diamond Bar?

On weekdays, leave before 12:30 pm or after 6 pm. The drive usually takes about 107 minutes then, versus up to 139 minutes at the worst times.

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

The 86-mile drive usually takes 107 to 139 minutes on weekdays, depending on when you leave, and about 121 minutes midday.

When is traffic worst from Lancaster to Diamond Bar?

Leaving around 2 pm on Fridays is usually slowest, about 139 minutes.

Freeways on this drive

I-210 East in Los Angeles (25 miles) · SR-14 South in Los Angeles (9 miles) · SR-57 South in Los Angeles (7 miles)

Los Angeles traffic right now · Los Angeles traffic tomorrow

More drives

Diamond Bar to Lancaster (return trip) · Lancaster to Los Angeles · Lancaster to Long Beach · Lancaster to Anaheim · Lancaster to Riverside · Lancaster to Santa Ana · Lancaster to Oxnard · Lancaster to Glendale · Lancaster to Santa Clarita · Lancaster to Garden Grove · Lancaster to Hollywood · Lancaster to Corona

Open the live traffic map →

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	112	115	113	112	112	113	113	113	119	126	130	131	120	110	109	107	107
Tue	112	114	114	112	113	112	113	114	119	127	129	130	123	114	109	107	107
Wed	112	115	113	113	114	114	114	115	122	128	130	132	123	115	110	107	107
Thu	112	115	114	113	114	113	113	116	125	132	134	136	125	115	110	107	107
Fri	111	114	112	114	114	115	120	126	134	139	138	135	124	116	111	108	107
Sat	108	108	109	109	111	113	115	115	119	120	120	114	112	109	109	107	107
Sun	108	108	108	108	109	110	110	111	112	110	112	110	108	109	110	107	107

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	112	115	113	112	112	113	113	113	119	126	130	131	120	110	109	107	107
Tue	112	114	114	112	113	112	113	114	119	127	129	130	123	114	109	107	107
Wed	112	115	113	113	114	114	114	115	122	128	130	132	123	115	110	107	107
Thu	112	115	114	113	114	113	113	116	125	132	134	136	125	115	110	107	107
Fri	111	114	112	114	114	115	120	126	134	139	138	135	124	116	111	108	107
Sat	108	108	109	109	111	113	115	115	119	120	120	114	112	109	109	107	107
Sun	108	108	108	108	109	110	110	111	112	110	112	110	108	109	110	107	107

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	112	115	113	112	112	113	113	113	119	126	130	131	120	110	109	107	107
Tue	112	114	114	112	113	112	113	114	119	127	129	130	123	114	109	107	107
Wed	112	115	113	113	114	114	114	115	122	128	130	132	123	115	110	107	107
Thu	112	115	114	113	114	113	113	116	125	132	134	136	125	115	110	107	107
Fri	111	114	112	114	114	115	120	126	134	139	138	135	124	116	111	108	107
Sat	108	108	109	109	111	113	115	115	119	120	120	114	112	109	109	107	107
Sun	108	108	108	108	109	110	110	111	112	110	112	110	108	109	110	107	107