Best Time to Drive from Fontana to Rancho Santa Margarita

Right now (3:20 pm PST): about 52 minutes via SR-241 South and I-15 South, usually 51 at this time.

Only 28% 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 Fontana to Rancho Santa Margarita 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	49	64	69	66	63	56	55	54	54	54	53	55	55	51	51	51	49
Tue	48	66	69	69	63	56	53	53	52	51	52	55	55	54	50	50	48
Wed	48	62	65	69	62	56	54	52	53	52	54	56	54	52	50	51	48
Thu	48	64	65	62	57	55	53	53	53	54	52	53	53	52	50	49	48
Fri	48	58	56	54	53	54	53	52	52	51	51	56	55	54	50	49	47
Sat	48	49	50	50	50	51	51	52	52	52	51	51	51	50	49	49	47
Sun	48	49	48	49	49	51	52	51	51	51	51	51	50	50	50	50	48

About this drive

On weekdays the 52-mile drive from Fontana to Rancho Santa Margarita (via SR-241 South and I-15 South) usually takes as little as 47 minutes and up to 70 minutes, when leaving around 6:30 am on Tuesdays. The fastest times to leave are before 6 am or after 6:30 pm. Midday (11 am to 2 pm) it takes about 53 minutes. On weekends it is slowest around 10:30 am on Sundays (52 minutes).

About 50 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 2 miles surface streets (3 to 7 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Fontana to central Rancho Santa Margarita 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 Fontana to Rancho Santa Margarita?

On weekdays, leave before 6 am or after 6:30 pm. The drive usually takes about 47 minutes then, versus up to 70 minutes at the worst times.

How long does it take to drive from Fontana to Rancho Santa Margarita?

The 52-mile drive usually takes 47 to 70 minutes on weekdays, depending on when you leave, and about 53 minutes midday.

When is traffic worst from Fontana to Rancho Santa Margarita?

Leaving around 6:30 am on Tuesdays is usually slowest, about 70 minutes.

Freeways on this drive

SR-241 South in Orange County (20 miles) · SR-91 West in Orange County (10 miles) · I-10 West in Inland Empire (7 miles) · I-15 South in Inland Empire (7 miles) · I-15 South in Orange County (6 miles)

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

More drives

Rancho Santa Margarita to Fontana (return trip) · Fontana to Los Angeles · Fontana to Long Beach · Fontana to Anaheim · Fontana to Santa Ana · Fontana to Irvine · Fontana to San Bernardino · Fontana to Moreno Valley · Fontana to Huntington Beach · Fontana to Glendale · Fontana to Santa Clarita · Fontana 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	49	64	69	66	63	56	55	54	54	54	53	55	55	51	51	51	49
Tue	48	66	69	69	63	56	53	53	52	51	52	55	55	54	50	50	48
Wed	48	62	65	69	62	56	54	52	53	52	54	56	54	52	50	51	48
Thu	48	64	65	62	57	55	53	53	53	54	52	53	53	52	50	49	48
Fri	48	58	56	54	53	54	53	52	52	51	51	56	55	54	50	49	47
Sat	48	49	50	50	50	51	51	52	52	52	51	51	51	50	49	49	47
Sun	48	49	48	49	49	51	52	51	51	51	51	51	50	50	50	50	48

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	49	64	69	66	63	56	55	54	54	54	53	55	55	51	51	51	49
Tue	48	66	69	69	63	56	53	53	52	51	52	55	55	54	50	50	48
Wed	48	62	65	69	62	56	54	52	53	52	54	56	54	52	50	51	48
Thu	48	64	65	62	57	55	53	53	53	54	52	53	53	52	50	49	48
Fri	48	58	56	54	53	54	53	52	52	51	51	56	55	54	50	49	47
Sat	48	49	50	50	50	51	51	52	52	52	51	51	51	50	49	49	47
Sun	48	49	48	49	49	51	52	51	51	51	51	51	50	50	50	50	48

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	49	64	69	66	63	56	55	54	54	54	53	55	55	51	51	51	49
Tue	48	66	69	69	63	56	53	53	52	51	52	55	55	54	50	50	48
Wed	48	62	65	69	62	56	54	52	53	52	54	56	54	52	50	51	48
Thu	48	64	65	62	57	55	53	53	53	54	52	53	53	52	50	49	48
Fri	48	58	56	54	53	54	53	52	52	51	51	56	55	54	50	49	47
Sat	48	49	50	50	50	51	51	52	52	52	51	51	51	50	49	49	47
Sun	48	49	48	49	49	51	52	51	51	51	51	51	50	50	50	50	48