Best Time to Drive from Altadena to Fontana

Right now (6:06 pm PDT): about 96 minutes via I-210 East, usually 75 at this time.

Only 37% 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 Altadena to Fontana 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	49	50	58	58	55	54	55	55	58	72	93	100	93	75	58	52	50
Tue	49	50	59	63	55	55	55	57	60	73	93	97	97	82	62	54	50
Wed	49	50	61	65	56	56	58	57	61	79	97	103	101	86	64	55	49
Thu	49	50	58	62	57	56	55	57	63	80	106	109	106	90	65	55	50
Fri	49	51	53	56	56	56	58	69	87	109	120	117	104	85	67	58	51
Sat	49	50	51	51	51	52	55	57	61	68	71	71	66	62	54	51	50
Sun	49	49	49	50	50	51	51	51	53	54	54	53	53	51	52	53	50

About this drive

On weekdays the 46-mile drive from Altadena to Fontana (via I-210 East) usually takes as little as 49 minutes and up to 121 minutes, when leaving around 3:30 pm on Fridays. The fastest times to leave are before 7 am or after 8:30 pm. Midday (11 am to 2 pm) it takes about 65 minutes. On weekends it is slowest around 3:30 pm on Saturdays (75 minutes).

About 34 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 12 miles surface streets (19 to 51 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Altadena to central Fontana 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 Altadena to Fontana?

On weekdays, leave before 7 am or after 8:30 pm. The drive usually takes about 49 minutes then, versus up to 121 minutes at the worst times.

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

The 46-mile drive usually takes 49 to 121 minutes on weekdays, depending on when you leave, and about 65 minutes midday.

When is traffic worst from Altadena to Fontana?

Leaving around 3:30 pm on Fridays is usually slowest, about 121 minutes.

Freeways on this drive

I-210 East in Los Angeles (22 miles) · I-210 East in Inland Empire (12 miles)

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

More drives

Fontana to Altadena (return trip) · Altadena to Los Angeles · Altadena to Long Beach · Altadena to Anaheim · Altadena to Riverside · Altadena to Santa Ana · Altadena to Irvine · Altadena to San Bernardino · Altadena to Oxnard

Open the live traffic map →

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	49	50	58	58	55	54	55	55	58	72	93	100	93	75	58	52	50
Tue	49	50	59	63	55	55	55	57	60	73	93	97	97	82	62	54	50
Wed	49	50	61	65	56	56	58	57	61	79	97	103	101	86	64	55	49
Thu	49	50	58	62	57	56	55	57	63	80	106	109	106	90	65	55	50
Fri	49	51	53	56	56	56	58	69	87	109	120	117	104	85	67	58	51
Sat	49	50	51	51	51	52	55	57	61	68	71	71	66	62	54	51	50
Sun	49	49	49	50	50	51	51	51	53	54	54	53	53	51	52	53	50

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	49	50	58	58	55	54	55	55	58	72	93	100	93	75	58	52	50
Tue	49	50	59	63	55	55	55	57	60	73	93	97	97	82	62	54	50
Wed	49	50	61	65	56	56	58	57	61	79	97	103	101	86	64	55	49
Thu	49	50	58	62	57	56	55	57	63	80	106	109	106	90	65	55	50
Fri	49	51	53	56	56	56	58	69	87	109	120	117	104	85	67	58	51
Sat	49	50	51	51	51	52	55	57	61	68	71	71	66	62	54	51	50
Sun	49	49	49	50	50	51	51	51	53	54	54	53	53	51	52	53	50

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	49	50	58	58	55	54	55	55	58	72	93	100	93	75	58	52	50
Tue	49	50	59	63	55	55	55	57	60	73	93	97	97	82	62	54	50
Wed	49	50	61	65	56	56	58	57	61	79	97	103	101	86	64	55	49
Thu	49	50	58	62	57	56	55	57	63	80	106	109	106	90	65	55	50
Fri	49	51	53	56	56	56	58	69	87	109	120	117	104	85	67	58	51
Sat	49	50	51	51	51	52	55	57	61	68	71	71	66	62	54	51	50
Sun	49	49	49	50	50	51	51	51	53	54	54	53	53	51	52	53	50