Best Time to Drive from Lake Forest to Rialto

Right now (8:52 pm PDT): about 56 minutes via SR-91 East and SR-241 North, usually 53 at this time.

Only 38% 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 Lake Forest to Rialto 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	52	54	60	61	59	58	59	60	62	66	71	72	70	61	57	56	52
Tue	52	55	64	63	60	58	58	60	61	67	74	74	73	61	58	57	53
Wed	52	55	63	65	60	58	58	60	61	68	70	70	71	60	57	56	53
Thu	52	55	63	62	59	58	58	59	62	66	72	75	72	63	59	56	52
Fri	52	54	57	60	57	59	60	62	68	72	77	75	70	65	61	56	53
Sat	51	52	53	54	55	56	57	57	57	58	59	59	59	57	56	55	51
Sun	51	51	52	52	53	54	56	56	56	55	56	55	54	54	54	55	51

About this drive

On weekdays the 51-mile drive from Lake Forest to Rialto (via SR-91 East and SR-241 North) usually takes as little as 52 minutes and up to 77 minutes, when leaving around 3 pm on Fridays. The fastest times to leave are before 6:30 am or after 8 pm. Midday (11 am to 2 pm) it takes about 62 minutes. On weekends it is slowest around 4:30 pm on Saturdays (60 minutes).

About 38 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 13 miles surface streets (18 to 25 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Lake Forest to central Rialto 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 Lake Forest to Rialto?

On weekdays, leave before 6:30 am or after 8 pm. The drive usually takes about 52 minutes then, versus up to 77 minutes at the worst times.

How long does it take to drive from Lake Forest to Rialto?

The 51-mile drive usually takes 52 to 77 minutes on weekdays, depending on when you leave, and about 62 minutes midday.

When is traffic worst from Lake Forest to Rialto?

Leaving around 3 pm on Fridays is usually slowest, about 77 minutes.

Freeways on this drive

SR-91 East in Orange County (20 miles) · SR-241 North in Orange County (12 miles) · SR-91 East in Inland Empire (5 miles) · SR-133 North in Orange County (1.6 miles)

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

More drives

Rialto to Lake Forest (return trip) · Lake Forest to Los Angeles · Lake Forest to Moreno Valley · Lake Forest to Long Beach · Lake Forest to Anaheim · Lake Forest to Riverside · Lake Forest to Santa Ana · Lake Forest to Irvine · Lake Forest to San Bernardino · Lake Forest to Fontana · Lake Forest to Huntington Beach · Lake Forest to Glendale

Open the live traffic map →

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	52	54	60	61	59	58	59	60	62	66	71	72	70	61	57	56	52
Tue	52	55	64	63	60	58	58	60	61	67	74	74	73	61	58	57	53
Wed	52	55	63	65	60	58	58	60	61	68	70	70	71	60	57	56	53
Thu	52	55	63	62	59	58	58	59	62	66	72	75	72	63	59	56	52
Fri	52	54	57	60	57	59	60	62	68	72	77	75	70	65	61	56	53
Sat	51	52	53	54	55	56	57	57	57	58	59	59	59	57	56	55	51
Sun	51	51	52	52	53	54	56	56	56	55	56	55	54	54	54	55	51

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	52	54	60	61	59	58	59	60	62	66	71	72	70	61	57	56	52
Tue	52	55	64	63	60	58	58	60	61	67	74	74	73	61	58	57	53
Wed	52	55	63	65	60	58	58	60	61	68	70	70	71	60	57	56	53
Thu	52	55	63	62	59	58	58	59	62	66	72	75	72	63	59	56	52
Fri	52	54	57	60	57	59	60	62	68	72	77	75	70	65	61	56	53
Sat	51	52	53	54	55	56	57	57	57	58	59	59	59	57	56	55	51
Sun	51	51	52	52	53	54	56	56	56	55	56	55	54	54	54	55	51

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	52	54	60	61	59	58	59	60	62	66	71	72	70	61	57	56	52
Tue	52	55	64	63	60	58	58	60	61	67	74	74	73	61	58	57	53
Wed	52	55	63	65	60	58	58	60	61	68	70	70	71	60	57	56	53
Thu	52	55	63	62	59	58	58	59	62	66	72	75	72	63	59	56	52
Fri	52	54	57	60	57	59	60	62	68	72	77	75	70	65	61	56	53
Sat	51	52	53	54	55	56	57	57	57	58	59	59	59	57	56	55	51
Sun	51	51	52	52	53	54	56	56	56	55	56	55	54	54	54	55	51