Best Time to Drive from Pomona to Lake Forest

Right now (6:03 pm PDT): about 45 minutes via SR-241 South and SR-71 North, usually 42 at this time.

Only 39% 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 Pomona 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	40	43	44	45	45	43	43	42	43	42	42	43	42	42	41	40	39
Tue	39	44	44	45	45	43	43	42	42	42	41	43	42	41	41	40	38
Wed	39	45	43	45	45	44	43	42	42	42	43	42	42	42	40	39	38
Thu	39	44	43	44	44	43	43	42	42	42	42	42	42	42	40	39	38
Fri	39	44	43	42	42	43	42	42	42	42	43	43	42	42	40	40	38
Sat	38	40	40	40	41	41	40	41	42	41	41	41	41	41	39	39	38
Sun	38	39	39	40	40	41	41	41	41	40	40	40	39	39	39	40	38

About this drive

On weekdays the 40-mile drive from Pomona to Lake Forest (via SR-241 South and SR-71 North) usually takes as little as 38 minutes and up to 46 minutes, when leaving around 8:30 am on Wednesdays. The fastest times to leave are before 6 am or after 6 pm. Midday (11 am to 2 pm) it takes about 42 minutes. On weekends it is slowest around 1 pm on Saturdays (42 minutes).

About 35 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 5 miles surface streets (7 to 10 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Pomona 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 Pomona to Lake Forest?

On weekdays, leave before 6 am or after 6 pm. The drive usually takes about 38 minutes then, versus up to 46 minutes at the worst times.

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

The 40-mile drive usually takes 38 to 46 minutes on weekdays, depending on when you leave, and about 42 minutes midday.

When is traffic worst from Pomona to Lake Forest?

Leaving around 8:30 am on Wednesdays is usually slowest, about 46 minutes.

Freeways on this drive

SR-241 South in Orange County (16 miles) · SR-71 North in Los Angeles (7 miles) · SR-71 North in Orange County (6 miles) · SR-91 West in Orange County (4 miles)

Los Angeles traffic right now · Los Angeles traffic tomorrow · Orange County traffic right now · Orange County traffic tomorrow

More drives

Lake Forest to Pomona (return trip) · Pomona to Los Angeles · Pomona to Santa Monica · Pomona to Pasadena · Pomona to Long Beach · Pomona to West Covina · Pomona to Burbank · Pomona to Glendale · Pomona to Santa Clarita · Pomona to Van Nuys · Pomona to Torrance · Pomona 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	40	43	44	45	45	43	43	42	43	42	42	43	42	42	41	40	39
Tue	39	44	44	45	45	43	43	42	42	42	41	43	42	41	41	40	38
Wed	39	45	43	45	45	44	43	42	42	42	43	42	42	42	40	39	38
Thu	39	44	43	44	44	43	43	42	42	42	42	42	42	42	40	39	38
Fri	39	44	43	42	42	43	42	42	42	42	43	43	42	42	40	40	38
Sat	38	40	40	40	41	41	40	41	42	41	41	41	41	41	39	39	38
Sun	38	39	39	40	40	41	41	41	41	40	40	40	39	39	39	40	38

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	40	43	44	45	45	43	43	42	43	42	42	43	42	42	41	40	39
Tue	39	44	44	45	45	43	43	42	42	42	41	43	42	41	41	40	38
Wed	39	45	43	45	45	44	43	42	42	42	43	42	42	42	40	39	38
Thu	39	44	43	44	44	43	43	42	42	42	42	42	42	42	40	39	38
Fri	39	44	43	42	42	43	42	42	42	42	43	43	42	42	40	40	38
Sat	38	40	40	40	41	41	40	41	42	41	41	41	41	41	39	39	38
Sun	38	39	39	40	40	41	41	41	41	40	40	40	39	39	39	40	38

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	40	43	44	45	45	43	43	42	43	42	42	43	42	42	41	40	39
Tue	39	44	44	45	45	43	43	42	42	42	41	43	42	41	41	40	38
Wed	39	45	43	45	45	44	43	42	42	42	43	42	42	42	40	39	38
Thu	39	44	43	44	44	43	43	42	42	42	42	42	42	42	40	39	38
Fri	39	44	43	42	42	43	42	42	42	42	43	43	42	42	40	40	38
Sat	38	40	40	40	41	41	40	41	42	41	41	41	41	41	39	39	38
Sun	38	39	39	40	40	41	41	41	41	40	40	40	39	39	39	40	38