Best Time to Drive from El Cajon to San Marcos

Right now (6:06 pm PDT): about 41 minutes via I-15 North and SR-52 West, usually 35 at this time.

Only 59% 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 El Cajon to San Marcos 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	33	34	45	43	37	36	36	36	36	37	41	47	44	35	34	34	33
Tue	33	34	45	47	38	36	36	36	36	37	45	51	50	39	34	34	33
Wed	33	34	49	45	38	36	36	36	36	37	48	57	53	40	34	34	33
Thu	33	34	49	48	37	36	36	36	36	38	46	53	49	38	34	34	33
Fri	33	35	43	40	36	36	36	36	38	43	48	47	40	35	34	34	33
Sat	33	33	34	34	34	34	35	35	37	35	36	35	34	34	34	34	34
Sun	33	33	34	33	33	34	34	34	34	34	34	34	34	34	34	34	33

About this drive

On weekdays the 38-mile drive from El Cajon to San Marcos (via I-15 North and SR-52 West) usually takes as little as 33 minutes and up to 57 minutes, when leaving around 4 pm on Wednesdays. The fastest times to leave are before 6:30 am or after 6:30 pm. Midday (11 am to 2 pm) it takes about 36 minutes. On weekends it is slowest around 1 pm on Saturdays (37 minutes).

About 36 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 1.4 miles surface streets (2 to 4 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central El Cajon to central San Marcos 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 El Cajon to San Marcos?

On weekdays, leave before 6:30 am or after 6:30 pm. The drive usually takes about 33 minutes then, versus up to 57 minutes at the worst times.

How long does it take to drive from El Cajon to San Marcos?

The 38-mile drive usually takes 33 to 57 minutes on weekdays, depending on when you leave, and about 36 minutes midday.

When is traffic worst from El Cajon to San Marcos?

Leaving around 4 pm on Wednesdays is usually slowest, about 57 minutes.

Freeways on this drive

I-15 North in San Diego (19 miles) · SR-52 West in San Diego (7 miles) · SR-78 West in San Diego (3 miles)

San Diego traffic right now · San Diego traffic tomorrow

More drives

San Marcos to El Cajon (return trip) · El Cajon to San Diego · El Cajon to Escondido · El Cajon to Oceanside · El Cajon to Chula Vista · El Cajon to Carlsbad · El Cajon to SAN · El Cajon to La Jolla · El Cajon to Temecula · El Cajon to Murrieta · El Cajon to Vista · El Cajon to Mission Viejo

Open the live traffic map →

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	33	34	45	43	37	36	36	36	36	37	41	47	44	35	34	34	33
Tue	33	34	45	47	38	36	36	36	36	37	45	51	50	39	34	34	33
Wed	33	34	49	45	38	36	36	36	36	37	48	57	53	40	34	34	33
Thu	33	34	49	48	37	36	36	36	36	38	46	53	49	38	34	34	33
Fri	33	35	43	40	36	36	36	36	38	43	48	47	40	35	34	34	33
Sat	33	33	34	34	34	34	35	35	37	35	36	35	34	34	34	34	34
Sun	33	33	34	33	33	34	34	34	34	34	34	34	34	34	34	34	33

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	33	34	45	43	37	36	36	36	36	37	41	47	44	35	34	34	33
Tue	33	34	45	47	38	36	36	36	36	37	45	51	50	39	34	34	33
Wed	33	34	49	45	38	36	36	36	36	37	48	57	53	40	34	34	33
Thu	33	34	49	48	37	36	36	36	36	38	46	53	49	38	34	34	33
Fri	33	35	43	40	36	36	36	36	38	43	48	47	40	35	34	34	33
Sat	33	33	34	34	34	34	35	35	37	35	36	35	34	34	34	34	34
Sun	33	33	34	33	33	34	34	34	34	34	34	34	34	34	34	34	33

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	33	34	45	43	37	36	36	36	36	37	41	47	44	35	34	34	33
Tue	33	34	45	47	38	36	36	36	36	37	45	51	50	39	34	34	33
Wed	33	34	49	45	38	36	36	36	36	37	48	57	53	40	34	34	33
Thu	33	34	49	48	37	36	36	36	36	38	46	53	49	38	34	34	33
Fri	33	35	43	40	36	36	36	36	38	43	48	47	40	35	34	34	33
Sat	33	33	34	34	34	34	35	35	37	35	36	35	34	34	34	34	34
Sun	33	33	34	33	33	34	34	34	34	34	34	34	34	34	34	34	33