Best Time to Drive from Rancho Cucamonga to Fountain Valley

Right now (3:20 pm PST): about 63 minutes via I-15 South and SR-91 West, usually 57 at this time.

Only 29% 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 Rancho Cucamonga to Fountain Valley 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	65	74	74	67	58	55	55	56	57	60	67	65	57	52	52	50
Tue	49	68	78	77	70	59	55	55	55	57	61	68	66	62	53	52	49
Wed	49	64	72	78	70	59	56	56	56	57	62	66	65	60	53	52	49
Thu	50	65	73	71	64	57	55	56	57	58	60	63	63	58	53	51	49
Fri	49	59	61	61	58	56	55	55	57	58	61	64	63	57	54	52	49
Sat	49	51	51	52	52	54	56	57	59	59	58	56	57	56	52	51	49
Sun	49	50	50	51	51	53	55	55	59	57	57	55	54	56	53	53	50

About this drive

On weekdays the 53-mile drive from Rancho Cucamonga to Fountain Valley (via I-15 South and SR-91 West) usually takes as little as 49 minutes and up to 82 minutes, when leaving around 7:30 am on Tuesdays. The fastest times to leave are before 6 am or after 7 pm. Midday (11 am to 2 pm) it takes about 56 minutes. On weekends it is slowest around 12:30 pm on Saturdays (60 minutes).

About 47 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 6 miles surface streets (7 to 16 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Rancho Cucamonga to central Fountain Valley 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 Rancho Cucamonga to Fountain Valley?

On weekdays, leave before 6 am or after 7 pm. The drive usually takes about 49 minutes then, versus up to 82 minutes at the worst times.

How long does it take to drive from Rancho Cucamonga to Fountain Valley?

The 53-mile drive usually takes 49 to 82 minutes on weekdays, depending on when you leave, and about 56 minutes midday.

When is traffic worst from Rancho Cucamonga to Fountain Valley?

Leaving around 7:30 am on Tuesdays is usually slowest, about 82 minutes.

Freeways on this drive

I-15 South in Inland Empire (11 miles) · SR-91 West in Orange County (10 miles) · SR-261 South in Orange County (8 miles) · SR-241 South in Orange County (6 miles) · I-405 North in Orange County (6 miles) · I-15 South in Orange County (6 miles)

Inland Empire traffic right now · Inland Empire traffic tomorrow · Orange County traffic right now · Orange County traffic tomorrow

More drives

Fountain Valley to Rancho Cucamonga (return trip) · Rancho Cucamonga to Los Angeles · Rancho Cucamonga to Santa Monica · Rancho Cucamonga to Pasadena · Rancho Cucamonga to Long Beach · Rancho Cucamonga to West Covina · Rancho Cucamonga to Burbank · Rancho Cucamonga to Glendale · Rancho Cucamonga to Santa Clarita · Rancho Cucamonga to Van Nuys · Rancho Cucamonga to Torrance · Rancho Cucamonga 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	49	65	74	74	67	58	55	55	56	57	60	67	65	57	52	52	50
Tue	49	68	78	77	70	59	55	55	55	57	61	68	66	62	53	52	49
Wed	49	64	72	78	70	59	56	56	56	57	62	66	65	60	53	52	49
Thu	50	65	73	71	64	57	55	56	57	58	60	63	63	58	53	51	49
Fri	49	59	61	61	58	56	55	55	57	58	61	64	63	57	54	52	49
Sat	49	51	51	52	52	54	56	57	59	59	58	56	57	56	52	51	49
Sun	49	50	50	51	51	53	55	55	59	57	57	55	54	56	53	53	50

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	49	65	74	74	67	58	55	55	56	57	60	67	65	57	52	52	50
Tue	49	68	78	77	70	59	55	55	55	57	61	68	66	62	53	52	49
Wed	49	64	72	78	70	59	56	56	56	57	62	66	65	60	53	52	49
Thu	50	65	73	71	64	57	55	56	57	58	60	63	63	58	53	51	49
Fri	49	59	61	61	58	56	55	55	57	58	61	64	63	57	54	52	49
Sat	49	51	51	52	52	54	56	57	59	59	58	56	57	56	52	51	49
Sun	49	50	50	51	51	53	55	55	59	57	57	55	54	56	53	53	50

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	49	65	74	74	67	58	55	55	56	57	60	67	65	57	52	52	50
Tue	49	68	78	77	70	59	55	55	55	57	61	68	66	62	53	52	49
Wed	49	64	72	78	70	59	56	56	56	57	62	66	65	60	53	52	49
Thu	50	65	73	71	64	57	55	56	57	58	60	63	63	58	53	51	49
Fri	49	59	61	61	58	56	55	55	57	58	61	64	63	57	54	52	49
Sat	49	51	51	52	52	54	56	57	59	59	58	56	57	56	52	51	49
Sun	49	50	50	51	51	53	55	55	59	57	57	55	54	56	53	53	50