The drive from Bethlehem, PA to Fairfield, PA covers 136.8 miles and takes about 3h 2m behind the wheel.
This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on William Penn Highway, US 15, I 81 for much of the mileage,
and the overall profile is mixed drive.
The longest uninterrupted segment is about 43.1 miles on William Penn Highway.
At current regular gas prices, budget about $22.68 one way before food or hotel costs.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
1 planned break
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
68.4 miles from Bethlehem, PA
A natural place for your longest stop of the day
, about 1h 25m into the drive
.