Best Time to Drive from San Bernardino to Lake Forest

Right now (8:43 pm PST): about 51 minutes via SR-91 West and SR-241 South, usually 51 at this time.

Only 49% 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 San Bernardino to Lake Forest 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	54	67	80	82	70	59	59	58	58	61	67	65	68	59	52	52	50
Tue	54	74	88	91	77	62	58	57	58	62	68	66	68	61	52	51	49
Wed	53	69	87	94	75	61	58	57	59	60	66	67	73	63	53	51	49
Thu	53	69	78	81	70	59	59	58	61	60	67	66	71	64	52	51	50
Fri	51	61	64	69	64	58	59	60	63	64	65	66	66	59	54	51	49
Sat	50	51	51	52	53	54	56	58	59	58	58	59	57	55	53	51	49
Sun	49	50	50	51	52	54	56	56	57	56	55	55	54	55	53	53	50

About this drive

On weekdays the 54-mile drive from San Bernardino to Lake Forest (via SR-91 West and SR-241 South) usually takes as little as 49 minutes and up to 94 minutes, when leaving around 8 am on Wednesdays. The fastest times to leave are before 5:30 am or after 7 pm. Midday (11 am to 2 pm) it takes about 59 minutes. On weekends it is slowest around 3:30 pm on Saturdays (59 minutes).

About 50 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 4 miles surface streets (5 to 9 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central San Bernardino to central Lake Forest 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 San Bernardino to Lake Forest?

On weekdays, leave before 5:30 am or after 7 pm. The drive usually takes about 49 minutes then, versus up to 94 minutes at the worst times.

How long does it take to drive from San Bernardino to Lake Forest?

The 54-mile drive usually takes 49 to 94 minutes on weekdays, depending on when you leave, and about 59 minutes midday.

When is traffic worst from San Bernardino to Lake Forest?

Leaving around 8 am on Wednesdays is usually slowest, about 94 minutes.

Freeways on this drive

SR-91 West in Orange County (21 miles) · SR-241 South in Orange County (16 miles) · I-215 South in Inland Empire (9 miles) · SR-91 West in Inland Empire (4 miles)

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

More drives

Lake Forest to San Bernardino (return trip) · San Bernardino to Los Angeles · San Bernardino to Santa Monica · San Bernardino to Pasadena · San Bernardino to Long Beach · San Bernardino to West Covina · San Bernardino to Burbank · San Bernardino to Glendale · San Bernardino to Van Nuys · San Bernardino to Torrance · San Bernardino to LAX · San Bernardino to Hollywood

Open the live traffic map →

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	54	67	80	82	70	59	59	58	58	61	67	65	68	59	52	52	50
Tue	54	74	88	91	77	62	58	57	58	62	68	66	68	61	52	51	49
Wed	53	69	87	94	75	61	58	57	59	60	66	67	73	63	53	51	49
Thu	53	69	78	81	70	59	59	58	61	60	67	66	71	64	52	51	50
Fri	51	61	64	69	64	58	59	60	63	64	65	66	66	59	54	51	49
Sat	50	51	51	52	53	54	56	58	59	58	58	59	57	55	53	51	49
Sun	49	50	50	51	52	54	56	56	57	56	55	55	54	55	53	53	50

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	54	67	80	82	70	59	59	58	58	61	67	65	68	59	52	52	50
Tue	54	74	88	91	77	62	58	57	58	62	68	66	68	61	52	51	49
Wed	53	69	87	94	75	61	58	57	59	60	66	67	73	63	53	51	49
Thu	53	69	78	81	70	59	59	58	61	60	67	66	71	64	52	51	50
Fri	51	61	64	69	64	58	59	60	63	64	65	66	66	59	54	51	49
Sat	50	51	51	52	53	54	56	58	59	58	58	59	57	55	53	51	49
Sun	49	50	50	51	52	54	56	56	57	56	55	55	54	55	53	53	50

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	54	67	80	82	70	59	59	58	58	61	67	65	68	59	52	52	50
Tue	54	74	88	91	77	62	58	57	58	62	68	66	68	61	52	51	49
Wed	53	69	87	94	75	61	58	57	59	60	66	67	73	63	53	51	49
Thu	53	69	78	81	70	59	59	58	61	60	67	66	71	64	52	51	50
Fri	51	61	64	69	64	58	59	60	63	64	65	66	66	59	54	51	49
Sat	50	51	51	52	53	54	56	58	59	58	58	59	57	55	53	51	49
Sun	49	50	50	51	52	54	56	56	57	56	55	55	54	55	53	53	50