What is the best time to drive from Raleigh NC through DC?

To ensure a smoother drive with lighter traffic, it's best to avoid the peak commuting hours. If possible, try to depart from Raleigh either early in the morning before 7 am or late at night after 8 pm. Departing early in the morning allows you to beat the rush of commuters heading into Washington D.C. for the workday, while leaving later in the evening allows you to avoid the return rush-hour traffic. Keep in mind that traffic can be unpredictable, so allowing extra time is always advisable.