Best Time to Drive from Fontana to Costa Mesa

Right now (7:18 pm PDT): about 50 minutes via SR-91 West and SR-55 South and I-15 South, usually 51 at this time.

Only 27% 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 Costa Mesa 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	50	70	77	80	67	58	59	58	59	59	59	60	59	56	52	52	50
Tue	50	76	84	85	75	61	58	56	56	56	59	59	56	56	51	52	50
Wed	51	69	76	85	72	63	58	57	57	56	57	58	57	55	51	53	50
Thu	52	72	77	79	66	61	57	57	59	59	60	58	60	57	51	51	50
Fri	50	63	68	69	64	59	61	60	59	59	59	59	61	61	55	51	50
Sat	49	51	52	51	53	55	59	62	61	60	59	59	56	57	55	50	49
Sun	49	50	50	50	52	54	57	58	58	57	56	56	53	53	53	55	49

About this drive

On weekdays the 54-mile drive from Fontana to Costa Mesa (via SR-91 West and SR-55 South and I-15 South) usually takes as little as 50 minutes and up to 85 minutes, when leaving around 8 am on Wednesdays. The fastest times to leave are before 5:30 am or after 6:30 pm. Midday (11 am to 2 pm) it takes about 58 minutes. On weekends it is slowest around 12 pm on Saturdays (62 minutes).

About 52 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 Costa Mesa 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 Costa Mesa?

On weekdays, leave before 5:30 am or after 6:30 pm. The drive usually takes about 50 minutes then, versus up to 85 minutes at the worst times.

How long does it take to drive from Fontana to Costa Mesa?

The 54-mile drive usually takes 50 to 85 minutes on weekdays, depending on when you leave, and about 58 minutes midday.

When is traffic worst from Fontana to Costa Mesa?

Leaving around 8 am on Wednesdays is usually slowest, about 85 minutes.

Freeways on this drive

SR-91 West in Orange County (17 miles) · SR-55 South in Orange County (15 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

Costa Mesa 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	50	70	77	80	67	58	59	58	59	59	59	60	59	56	52	52	50
Tue	50	76	84	85	75	61	58	56	56	56	59	59	56	56	51	52	50
Wed	51	69	76	85	72	63	58	57	57	56	57	58	57	55	51	53	50
Thu	52	72	77	79	66	61	57	57	59	59	60	58	60	57	51	51	50
Fri	50	63	68	69	64	59	61	60	59	59	59	59	61	61	55	51	50
Sat	49	51	52	51	53	55	59	62	61	60	59	59	56	57	55	50	49
Sun	49	50	50	50	52	54	57	58	58	57	56	56	53	53	53	55	49

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	50	70	77	80	67	58	59	58	59	59	59	60	59	56	52	52	50
Tue	50	76	84	85	75	61	58	56	56	56	59	59	56	56	51	52	50
Wed	51	69	76	85	72	63	58	57	57	56	57	58	57	55	51	53	50
Thu	52	72	77	79	66	61	57	57	59	59	60	58	60	57	51	51	50
Fri	50	63	68	69	64	59	61	60	59	59	59	59	61	61	55	51	50
Sat	49	51	52	51	53	55	59	62	61	60	59	59	56	57	55	50	49
Sun	49	50	50	50	52	54	57	58	58	57	56	56	53	53	53	55	49

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	50	70	77	80	67	58	59	58	59	59	59	60	59	56	52	52	50
Tue	50	76	84	85	75	61	58	56	56	56	59	59	56	56	51	52	50
Wed	51	69	76	85	72	63	58	57	57	56	57	58	57	55	51	53	50
Thu	52	72	77	79	66	61	57	57	59	59	60	58	60	57	51	51	50
Fri	50	63	68	69	64	59	61	60	59	59	59	59	61	61	55	51	50
Sat	49	51	52	51	53	55	59	62	61	60	59	59	56	57	55	50	49
Sun	49	50	50	50	52	54	57	58	58	57	56	56	53	53	53	55	49