Best Time to Drive from Ontario to Altadena

Right now (6:49 pm PDT): about 41 minutes via I-210 West, usually 42 at this time.

Only 35% 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 Ontario 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	38	60	70	68	56	50	50	48	48	48	50	51	48	42	41	40	39
Tue	38	65	81	73	63	55	49	46	48	49	53	53	53	47	41	40	39
Wed	38	65	79	73	61	54	51	48	50	53	59	57	55	49	42	41	40
Thu	38	57	72	68	56	51	46	46	48	50	55	57	56	48	42	40	39
Fri	38	50	57	54	51	50	48	53	56	59	62	61	57	51	44	40	39
Sat	38	39	40	40	41	43	45	47	49	50	51	47	47	44	41	39	39
Sun	39	39	38	39	39	41	40	43	44	45	43	43	42	41	41	41	39

About this drive

On weekdays the 35-mile drive from Ontario to Altadena (via I-210 West) usually takes as little as 38 minutes and up to 82 minutes, when leaving around 6:30 am on Tuesdays. The fastest times to leave are before 6 am or after 7:30 pm. Midday (11 am to 2 pm) it takes about 49 minutes. On weekends it is slowest around 3 pm on Saturdays (51 minutes).

About 23 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 12 miles surface streets (18 to 38 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Ontario 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 Ontario to Altadena?

On weekdays, leave before 6 am or after 7:30 pm. The drive usually takes about 38 minutes then, versus up to 82 minutes at the worst times.

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

The 35-mile drive usually takes 38 to 82 minutes on weekdays, depending on when you leave, and about 49 minutes midday.

When is traffic worst from Ontario to Altadena?

Leaving around 6:30 am on Tuesdays is usually slowest, about 82 minutes.

Freeways on this drive

I-210 West in Los Angeles (23 miles)

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

More drives

Altadena to Ontario (return trip) · Ontario to Los Angeles · Ontario to Santa Monica · Ontario to Pasadena · Ontario to Long Beach · Ontario to West Covina · Ontario to Burbank · Ontario to Glendale · Ontario to Santa Clarita · Ontario to Van Nuys · Ontario to Torrance · Ontario to LAX

Open the live traffic map →

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	38	60	70	68	56	50	50	48	48	48	50	51	48	42	41	40	39
Tue	38	65	81	73	63	55	49	46	48	49	53	53	53	47	41	40	39
Wed	38	65	79	73	61	54	51	48	50	53	59	57	55	49	42	41	40
Thu	38	57	72	68	56	51	46	46	48	50	55	57	56	48	42	40	39
Fri	38	50	57	54	51	50	48	53	56	59	62	61	57	51	44	40	39
Sat	38	39	40	40	41	43	45	47	49	50	51	47	47	44	41	39	39
Sun	39	39	38	39	39	41	40	43	44	45	43	43	42	41	41	41	39

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	38	60	70	68	56	50	50	48	48	48	50	51	48	42	41	40	39
Tue	38	65	81	73	63	55	49	46	48	49	53	53	53	47	41	40	39
Wed	38	65	79	73	61	54	51	48	50	53	59	57	55	49	42	41	40
Thu	38	57	72	68	56	51	46	46	48	50	55	57	56	48	42	40	39
Fri	38	50	57	54	51	50	48	53	56	59	62	61	57	51	44	40	39
Sat	38	39	40	40	41	43	45	47	49	50	51	47	47	44	41	39	39
Sun	39	39	38	39	39	41	40	43	44	45	43	43	42	41	41	41	39

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	38	60	70	68	56	50	50	48	48	48	50	51	48	42	41	40	39
Tue	38	65	81	73	63	55	49	46	48	49	53	53	53	47	41	40	39
Wed	38	65	79	73	61	54	51	48	50	53	59	57	55	49	42	41	40
Thu	38	57	72	68	56	51	46	46	48	50	55	57	56	48	42	40	39
Fri	38	50	57	54	51	50	48	53	56	59	62	61	57	51	44	40	39
Sat	38	39	40	40	41	43	45	47	49	50	51	47	47	44	41	39	39
Sun	39	39	38	39	39	41	40	43	44	45	43	43	42	41	41	41	39