Best Time to Drive from Boston to Westford

Right now (10:36 pm EST): about 41 minutes via I-93 North and I-495 South.

Only 74% 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 Boston to Westford 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	35	38	43	48	43	39	38	38	38	43	53	57	53	44	37	36	39
Tue	35	39	47	54	48	41	39	38	39	45	55	60	61	48	39	36	40
Wed	35	38	46	54	49	41	39	39	40	47	58	62	61	46	39	37	40
Thu	35	39	45	54	48	41	39	39	40	48	57	62	61	48	40	37	41
Fri	35	35	38	41	39	38	40	42	47	57	62	59	54	43	38	37	37
Sat	34	34	35	35	35	38	41	42	42	40	39	39	38	37	36	36	36
Sun	35	34	34	34	34	35	36	39	40	38	37	37	37	36	37	37	40

About this drive

On weekdays the 39-mile drive from Boston to Westford (via I-93 North and I-495 South) usually takes as little as 35 minutes and up to 64 minutes, when leaving around 2:30 pm on Fridays. The fastest times to leave are before 6:30 am. Midday (11 am to 2 pm) it takes about 41 minutes. On weekends it is slowest around 12 pm on Saturdays (42 minutes).

About 36 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 Boston to central Westford 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 Boston to Westford?

On weekdays, leave before 6:30 am. The drive usually takes about 35 minutes then, versus up to 64 minutes at the worst times.

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

The 39-mile drive usually takes 35 to 64 minutes on weekdays, depending on when you leave, and about 41 minutes midday.

When is traffic worst from Boston to Westford?

Leaving around 2:30 pm on Fridays is usually slowest, about 64 minutes.

Freeways on this drive

I-93 North in Boston (22 miles) · I-495 South in Boston (14 miles)

Boston traffic right now · Boston traffic tomorrow

More drives

Westford to Boston (return trip) · Boston to Quincy · Boston to Framingham · Boston to Worcester · Boston to Lowell · Boston to Burlington MA · Boston to Woburn · Boston to Braintree · Boston to Andover · Boston to Brockton · Boston to Plymouth MA · Boston to Natick

Open the live traffic map →

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	35	38	43	48	43	39	38	38	38	43	53	57	53	44	37	36	39
Tue	35	39	47	54	48	41	39	38	39	45	55	60	61	48	39	36	40
Wed	35	38	46	54	49	41	39	39	40	47	58	62	61	46	39	37	40
Thu	35	39	45	54	48	41	39	39	40	48	57	62	61	48	40	37	41
Fri	35	35	38	41	39	38	40	42	47	57	62	59	54	43	38	37	37
Sat	34	34	35	35	35	38	41	42	42	40	39	39	38	37	36	36	36
Sun	35	34	34	34	34	35	36	39	40	38	37	37	37	36	37	37	40

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	35	38	43	48	43	39	38	38	38	43	53	57	53	44	37	36	39
Tue	35	39	47	54	48	41	39	38	39	45	55	60	61	48	39	36	40
Wed	35	38	46	54	49	41	39	39	40	47	58	62	61	46	39	37	40
Thu	35	39	45	54	48	41	39	39	40	48	57	62	61	48	40	37	41
Fri	35	35	38	41	39	38	40	42	47	57	62	59	54	43	38	37	37
Sat	34	34	35	35	35	38	41	42	42	40	39	39	38	37	36	36	36
Sun	35	34	34	34	34	35	36	39	40	38	37	37	37	36	37	37	40

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	35	38	43	48	43	39	38	38	38	43	53	57	53	44	37	36	39
Tue	35	39	47	54	48	41	39	38	39	45	55	60	61	48	39	36	40
Wed	35	38	46	54	49	41	39	39	40	47	58	62	61	46	39	37	40
Thu	35	39	45	54	48	41	39	39	40	48	57	62	61	48	40	37	41
Fri	35	35	38	41	39	38	40	42	47	57	62	59	54	43	38	37	37
Sat	34	34	35	35	35	38	41	42	42	40	39	39	38	37	36	36	36
Sun	35	34	34	34	34	35	36	39	40	38	37	37	37	36	37	37	40