The journey from Williamsport to Alexandria covers approximately 85 miles via I-70 E and I-270 S. You will typically spend 90 to 120 minutes on the road depending on the heavy congestion near the Capital Beltway. This route transitions from the rural landscape of Washington County into the dense urban sprawl of Northern Virginia. Most travelers prefer driving as there is no direct public transit link from Williamsport. Expect to pass through Frederick and Bethesda before crossing the Potomac River.
Total Distance: 137 km driving distance; 115 km straight-line air distance.
Avoid the I-495 American Legion Bridge during rush hour between 7 AM and 9 AM.
Spring and Autumn are ideal to avoid the extreme summer humidity and winter ice storms on I-70.