Best Time to Drive from Rialto to Fountain Valley

Right now (3:21 pm PST): about 63 minutes via SR-91 West, usually 66 at this time.

Only 27% 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 Rialto 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	58	75	83	81	77	67	68	67	67	71	78	79	78	67	58	58	56
Tue	59	79	87	86	80	71	66	67	69	75	77	77	78	69	59	57	55
Wed	58	75	85	87	80	68	67	67	68	72	79	78	80	71	60	58	55
Thu	58	75	80	80	76	66	67	67	70	71	77	77	79	70	61	58	55
Fri	57	69	73	74	73	67	69	71	74	73	77	76	76	68	62	58	55
Sat	55	57	57	58	59	61	63	65	66	67	66	66	63	62	60	58	55
Sun	55	55	56	56	58	60	62	63	65	64	63	62	61	62	60	60	56

About this drive

On weekdays the 57-mile drive from Rialto to Fountain Valley (via SR-91 West) usually takes as little as 55 minutes and up to 87 minutes, when leaving around 7 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 pm on Saturdays (67 minutes).

About 47 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 10 miles surface streets (13 to 25 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Rialto 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 Rialto to Fountain Valley?

On weekdays, leave before 5:30 am or after 7 pm. The drive usually takes about 55 minutes then, versus up to 87 minutes at the worst times.

How long does it take to drive from Rialto to Fountain Valley?

The 57-mile drive usually takes 55 to 87 minutes on weekdays, depending on when you leave, and about 69 minutes midday.

When is traffic worst from Rialto to Fountain Valley?

Leaving around 7 am on Tuesdays is usually slowest, about 87 minutes.

Freeways on this drive

SR-91 West in Orange County (21 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) · SR-91 West in Inland Empire (4 miles) · I-215 South in Inland Empire (1.5 miles)

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

More drives

Fountain Valley to Rialto (return trip) · Rialto to Los Angeles · Rialto to Long Beach · Rialto to Anaheim · Rialto to Riverside · Rialto to Santa Ana · Rialto to Irvine · Rialto to Moreno Valley · Rialto to Huntington Beach · Rialto to Glendale · Rialto to Santa Clarita · Rialto to Oceanside

Open the live traffic map →

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	58	75	83	81	77	67	68	67	67	71	78	79	78	67	58	58	56
Tue	59	79	87	86	80	71	66	67	69	75	77	77	78	69	59	57	55
Wed	58	75	85	87	80	68	67	67	68	72	79	78	80	71	60	58	55
Thu	58	75	80	80	76	66	67	67	70	71	77	77	79	70	61	58	55
Fri	57	69	73	74	73	67	69	71	74	73	77	76	76	68	62	58	55
Sat	55	57	57	58	59	61	63	65	66	67	66	66	63	62	60	58	55
Sun	55	55	56	56	58	60	62	63	65	64	63	62	61	62	60	60	56

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	58	75	83	81	77	67	68	67	67	71	78	79	78	67	58	58	56
Tue	59	79	87	86	80	71	66	67	69	75	77	77	78	69	59	57	55
Wed	58	75	85	87	80	68	67	67	68	72	79	78	80	71	60	58	55
Thu	58	75	80	80	76	66	67	67	70	71	77	77	79	70	61	58	55
Fri	57	69	73	74	73	67	69	71	74	73	77	76	76	68	62	58	55
Sat	55	57	57	58	59	61	63	65	66	67	66	66	63	62	60	58	55
Sun	55	55	56	56	58	60	62	63	65	64	63	62	61	62	60	60	56

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	58	75	83	81	77	67	68	67	67	71	78	79	78	67	58	58	56
Tue	59	79	87	86	80	71	66	67	69	75	77	77	78	69	59	57	55
Wed	58	75	85	87	80	68	67	67	68	72	79	78	80	71	60	58	55
Thu	58	75	80	80	76	66	67	67	70	71	77	77	79	70	61	58	55
Fri	57	69	73	74	73	67	69	71	74	73	77	76	76	68	62	58	55
Sat	55	57	57	58	59	61	63	65	66	67	66	66	63	62	60	58	55
Sun	55	55	56	56	58	60	62	63	65	64	63	62	61	62	60	60	56