Best Time to Drive from Merrimack to Boston

Right now (11:16 pm EST): about 58 minutes via US-3 South and I-93 South.

Only 73% 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 Merrimack to Boston 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	58	76	91	87	72	62	61	64	64	76	80	77	75	65	59	59	64
Tue	59	81	111	107	87	68	62	62	64	80	85	91	88	70	60	60	62
Wed	58	78	105	106	87	71	63	62	65	84	91	92	89	72	61	60	62
Thu	59	79	102	98	85	69	63	63	67	87	91	92	89	74	62	60	63
Fri	58	66	73	69	65	64	64	68	77	85	87	82	74	69	61	59	60
Sat	56	56	57	57	59	63	65	67	68	68	69	67	66	65	61	59	58
Sun	57	55	56	56	57	59	64	67	67	67	66	64	62	62	60	60	61

About this drive

On weekdays the 52-mile drive from Merrimack to Boston (via US-3 South and I-93 South) usually takes as little as 58 minutes and up to 113 minutes, when leaving around 7:30 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 68 minutes. On weekends it is slowest around 3 pm on Saturdays (69 minutes).

About 43 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 9 miles surface streets (11 to 21 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Merrimack to central Boston 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 Merrimack to Boston?

On weekdays, leave before 6 am or after 6:30 pm. The drive usually takes about 58 minutes then, versus up to 113 minutes at the worst times.

How long does it take to drive from Merrimack to Boston?

The 52-mile drive usually takes 58 to 113 minutes on weekdays, depending on when you leave, and about 68 minutes midday.

When is traffic worst from Merrimack to Boston?

Leaving around 7:30 am on Tuesdays is usually slowest, about 113 minutes.

Freeways on this drive

US-3 South in Boston (25 miles) · I-93 South in Boston (14 miles) · I-95 North in Boston (3 miles)

Boston traffic right now · Boston traffic tomorrow

More drives

Boston to Merrimack (return trip) · Merrimack to Worcester

Open the live traffic map →

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	58	76	91	87	72	62	61	64	64	76	80	77	75	65	59	59	64
Tue	59	81	111	107	87	68	62	62	64	80	85	91	88	70	60	60	62
Wed	58	78	105	106	87	71	63	62	65	84	91	92	89	72	61	60	62
Thu	59	79	102	98	85	69	63	63	67	87	91	92	89	74	62	60	63
Fri	58	66	73	69	65	64	64	68	77	85	87	82	74	69	61	59	60
Sat	56	56	57	57	59	63	65	67	68	68	69	67	66	65	61	59	58
Sun	57	55	56	56	57	59	64	67	67	67	66	64	62	62	60	60	61

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	58	76	91	87	72	62	61	64	64	76	80	77	75	65	59	59	64
Tue	59	81	111	107	87	68	62	62	64	80	85	91	88	70	60	60	62
Wed	58	78	105	106	87	71	63	62	65	84	91	92	89	72	61	60	62
Thu	59	79	102	98	85	69	63	63	67	87	91	92	89	74	62	60	63
Fri	58	66	73	69	65	64	64	68	77	85	87	82	74	69	61	59	60
Sat	56	56	57	57	59	63	65	67	68	68	69	67	66	65	61	59	58
Sun	57	55	56	56	57	59	64	67	67	67	66	64	62	62	60	60	61

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	58	76	91	87	72	62	61	64	64	76	80	77	75	65	59	59	64
Tue	59	81	111	107	87	68	62	62	64	80	85	91	88	70	60	60	62
Wed	58	78	105	106	87	71	63	62	65	84	91	92	89	72	61	60	62
Thu	59	79	102	98	85	69	63	63	67	87	91	92	89	74	62	60	63
Fri	58	66	73	69	65	64	64	68	77	85	87	82	74	69	61	59	60
Sat	56	56	57	57	59	63	65	67	68	68	69	67	66	65	61	59	58
Sun	57	55	56	56	57	59	64	67	67	67	66	64	62	62	60	60	61