The drive from Williamsport to Martinsburg is a short 20-kilometer trip south on Interstate 81. You will cross the Potomac River into West Virginia. The journey typically takes 20 minutes. This route is a common commute for those living in Maryland and working in the Eastern Panhandle of West Virginia. It is a simple, direct highway drive.
Total Distance: 20 km driving distance, 18 km air distance.
The drive is very straightforward; just follow I-81 South.
Any time, as traffic is generally light on this stretch.