Best Time to Drive from Riverside to Altadena

Right now (6:35 pm PST): about 87 minutes via SR-91 West and I-210 West and SR-71 South, usually 64 at this time.

Only 46% 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 Riverside to Altadena 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	56	93	108	96	83	70	66	63	64	69	75	77	73	63	57	56	55
Tue	57	108	119	102	87	73	67	63	67	72	77	80	78	69	58	56	54
Wed	57	99	113	104	87	72	66	65	68	75	85	84	82	71	60	56	55
Thu	56	91	108	94	81	72	66	65	70	75	85	85	82	71	60	56	55
Fri	55	77	81	76	73	69	68	74	81	86	89	87	80	71	61	56	54
Sat	55	56	57	57	58	61	67	69	70	71	71	70	69	64	59	56	54
Sun	54	54	54	55	56	59	62	64	65	64	62	61	61	60	58	57	54

About this drive

On weekdays the 58-mile drive from Riverside to Altadena (via SR-91 West and I-210 West and SR-71 South) usually takes as little as 54 minutes and up to 122 minutes, when leaving around 6:30 am on Tuesdays. The fastest times to leave are before 5:30 am or after 7 pm. Midday (11 am to 2 pm) it takes about 69 minutes. On weekends it is slowest around 2:30 pm on Saturdays (72 minutes).

About 51 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 6 miles surface streets (9 to 28 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Riverside to central Altadena 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 Riverside to Altadena?

On weekdays, leave before 5:30 am or after 7 pm. The drive usually takes about 54 minutes then, versus up to 122 minutes at the worst times.

How long does it take to drive from Riverside to Altadena?

The 58-mile drive usually takes 54 to 122 minutes on weekdays, depending on when you leave, and about 69 minutes midday.

When is traffic worst from Riverside to Altadena?

Leaving around 6:30 am on Tuesdays is usually slowest, about 122 minutes.

Freeways on this drive

SR-91 West in Orange County (18 miles) · I-210 West in Los Angeles (15 miles) · SR-71 South in Los Angeles (9 miles) · SR-57 North in Los Angeles (4 miles) · SR-71 South in Inland Empire (2 miles) · SR-71 South in Orange County (2 miles)

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

More drives

Altadena to Riverside (return trip) · Riverside to Los Angeles · Riverside to Santa Monica · Riverside to Pasadena · Riverside to Long Beach · Riverside to West Covina · Riverside to Burbank · Riverside to Glendale · Riverside to Van Nuys · Riverside to Torrance · Riverside to LAX · Riverside 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	56	93	108	96	83	70	66	63	64	69	75	77	73	63	57	56	55
Tue	57	108	119	102	87	73	67	63	67	72	77	80	78	69	58	56	54
Wed	57	99	113	104	87	72	66	65	68	75	85	84	82	71	60	56	55
Thu	56	91	108	94	81	72	66	65	70	75	85	85	82	71	60	56	55
Fri	55	77	81	76	73	69	68	74	81	86	89	87	80	71	61	56	54
Sat	55	56	57	57	58	61	67	69	70	71	71	70	69	64	59	56	54
Sun	54	54	54	55	56	59	62	64	65	64	62	61	61	60	58	57	54

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	56	93	108	96	83	70	66	63	64	69	75	77	73	63	57	56	55
Tue	57	108	119	102	87	73	67	63	67	72	77	80	78	69	58	56	54
Wed	57	99	113	104	87	72	66	65	68	75	85	84	82	71	60	56	55
Thu	56	91	108	94	81	72	66	65	70	75	85	85	82	71	60	56	55
Fri	55	77	81	76	73	69	68	74	81	86	89	87	80	71	61	56	54
Sat	55	56	57	57	58	61	67	69	70	71	71	70	69	64	59	56	54
Sun	54	54	54	55	56	59	62	64	65	64	62	61	61	60	58	57	54

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	56	93	108	96	83	70	66	63	64	69	75	77	73	63	57	56	55
Tue	57	108	119	102	87	73	67	63	67	72	77	80	78	69	58	56	54
Wed	57	99	113	104	87	72	66	65	68	75	85	84	82	71	60	56	55
Thu	56	91	108	94	81	72	66	65	70	75	85	85	82	71	60	56	55
Fri	55	77	81	76	73	69	68	74	81	86	89	87	80	71	61	56	54
Sat	55	56	57	57	58	61	67	69	70	71	71	70	69	64	59	56	54
Sun	54	54	54	55	56	59	62	64	65	64	62	61	61	60	58	57	54