I-66 East Traffic in Northern Virginia

As of 4:01 pm EDT, I-66 East in Northern Virginia is averaging 62 mph across 2 sensors.

Is I-66 East moving right now?

Yes. No stretch of I-66 East in Northern Virginia is under 40 mph right now (as of 4:01 pm EDT).

Earlier in the last 24 hours

3:00 pm: Disabled vehicle, I-66 EB at Rte 66 Dist/Coll at mp43
9:21 am: Crash, I-66 EB at Ramp to Old Tavern Rd, Rte 245; Rte 66 Rmp 31A
9:10 am: Crash, I-66 EB at Ramp to Rte 66 HOV; Rte 66 Rmp 46A
8:10 am: Crash, I-66 EB at Ramp to Rte 66 HOV; Rte 66 Rmp 46A
6:55 pm: Disabled vehicle, I-66 EB at Maint Bdy;
6:10 pm: Disabled vehicle, I-66 EB at Overlap Rte; Ramp to Free State Rd, Rte 721; Rte 66 Rmp 27A, Rte 55

Best time to drive I-66 East

Traffic is usually worst on Tuesday around 10 am (about 56 mph). On weekdays the morning slowdown peaks around 10 am (56 mph on Tuesdays) and the evening slowdown around 5 pm (58 mph on Wednesdays). Midday (10 am to 2 pm) averages 61 mph. On weekends it is slowest on Saturdays around 6 am (60 mph).

Typical average speed (mph) on I-66 East in Northern Virginia, by day and hour (local time)
Day	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	61	–	60	59	60	60	–	–	–	–	–	–	–	–	–	–	60
Tue	61	66	62	60	61	56	60	62	62	61	66	61	60	64	64	63	60
Wed	61	60	62	67	62	63	60	60	62	61	65	61	58	60	59	65	65
Thu	61	68	60	60	60	60	60	61	61	60	–	61	62	60	59	60	61
Fri	69	61	61	66	60	59	62	62	61	61	62	63	65	61	59	61	70
Sat	61	60	61	68	61	70	61	69	67	67	67	62	67	62	67	62	62
Sun	62	63	62	64	69	69	64	64	66	65	66	63	63	63	62	64	62

Averages of every 5-minute reading we have recorded at this time of the week. Colors match the live map.

Questions

When is traffic worst on I-66 East in Northern Virginia?

Traffic on I-66 East is usually worst on Tuesday around 10 am (about 56 mph).

What is the best time to drive I-66 East in Northern Virginia?

On weekdays, avoid around 10 am (56 mph on Tuesdays) and around 5 pm (58 mph on Wednesdays). Midday (10 am to 2 pm) averages 61 mph, and early mornings and late evenings are fastest.

Is I-66 East busy right now?

As of 4:01 pm EDT, I-66 East in Northern Virginia is averaging 62 mph across 2 sensors.

Plan ahead: Northern Virginia traffic tomorrow · Traffic estimator

Other freeways in Northern Virginia

I-66 West · I-95 North · I-95 South · I-270 North · I-270 South

Day	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	61	–	60	59	60	60	–	–	–	–	–	–	–	–	–	–	60
Tue	61	66	62	60	61	56	60	62	62	61	66	61	60	64	64	63	60
Wed	61	60	62	67	62	63	60	60	62	61	65	61	58	60	59	65	65
Thu	61	68	60	60	60	60	60	61	61	60	–	61	62	60	59	60	61
Fri	69	61	61	66	60	59	62	62	61	61	62	63	65	61	59	61	70
Sat	61	60	61	68	61	70	61	69	67	67	67	62	67	62	67	62	62
Sun	62	63	62	64	69	69	64	64	66	65	66	63	63	63	62	64	62

Day	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	61	–	60	59	60	60	–	–	–	–	–	–	–	–	–	–	60
Tue	61	66	62	60	61	56	60	62	62	61	66	61	60	64	64	63	60
Wed	61	60	62	67	62	63	60	60	62	61	65	61	58	60	59	65	65
Thu	61	68	60	60	60	60	60	61	61	60	–	61	62	60	59	60	61
Fri	69	61	61	66	60	59	62	62	61	61	62	63	65	61	59	61	70
Sat	61	60	61	68	61	70	61	69	67	67	67	62	67	62	67	62	62
Sun	62	63	62	64	69	69	64	64	66	65	66	63	63	63	62	64	62

Day	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	61	–	60	59	60	60	–	–	–	–	–	–	–	–	–	–	60
Tue	61	66	62	60	61	56	60	62	62	61	66	61	60	64	64	63	60
Wed	61	60	62	67	62	63	60	60	62	61	65	61	58	60	59	65	65
Thu	61	68	60	60	60	60	60	61	61	60	–	61	62	60	59	60	61
Fri	69	61	61	66	60	59	62	62	61	61	62	63	65	61	59	61	70
Sat	61	60	61	68	61	70	61	69	67	67	67	62	67	62	67	62	62
Sun	62	63	62	64	69	69	64	64	66	65	66	63	63	63	62	64	62