How far is Bethlehem, PA from Allen, PA?
The driving distance from Bethlehem, PA to Allen, PA is about 106.8 miles (171.9 km), with a travel time of about 02h 19m by car.
- The straight-line flight distance is about 95.6 miles (153.9 km).
- For a round trip, plan for roughly 04h 38m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM EDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 02h 19m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Human settlement in United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Bethlehem and Allen.
Turn-by-Turn Driving Directions
Step-by-step road directions between Bethlehem and Allen.
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1
Start on Linden Street
112 m · 13 sec · Linden Street
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2
Turn right onto East Union Boulevard
1.3 km · 2 min · East Union Boulevard
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3
Take the ramp right
1240 ft · 30 sec
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4
Merge slight left onto Bethlehem Spur Route
2.3 mi · 3 min · Bethlehem Spur Route
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5
Keep slight left to continue on US 22 West: Allentown
1.3 km · 2 min
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6
Merge slight left onto Lehigh Valley Thruway
9.8 mi · 13 min · Lehigh Valley Thruway
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7
Merge slight left onto William Penn Highway
43.1 mi · 52 min · William Penn Highway
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8
Continue on 78th Division Highway
7.6 mi · 9 min · 78th Division Highway
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9
Keep slight left to continue on I 81 South: Harrisburg
1.1 km · 49 sec
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10
Merge slight left
31.2 mi · 38 min
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11
Take the exit slight right toward PA 114: Mechanicsburg
1731 ft · 42 sec
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12
At the end of the road, turn left onto Conoduguinet Road
53 m · 11 sec · Conoduguinet Road
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13
Continue on New Willow Mill Road
1.3 mi · 2 min · New Willow Mill Road
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14
Continue on Conodoguinet Parkway
3210 ft · 1 min · Conodoguinet Parkway
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15
Continue on Hogestown Road
1.6 mi · 3 min · Hogestown Road
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16
Turn right onto Mulberry Drive
1.6 mi · 4 min · Mulberry Drive
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17
Turn right onto West Trindle Road
1.3 mi · 3 min · West Trindle Road
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18
Turn left onto Boiling Springs Road
3.4 mi · 6 min · Boiling Springs Road
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19
Turn right onto Old Stonehouse Road
8 m · 1 sec · Old Stonehouse Road
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20
Arrive at your destination
0 m · 1 sec · Old Stonehouse Road
Car Route Details
A richer read on the saved driving route between Bethlehem and Allen.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
William Penn Highway
Merge slight left onto William Penn Highway
43.1 mi · 00h 52m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Mostly Sunny leaving Bethlehem and Sunny near Allen.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Bethlehem to Allen?
The road trip is about 106.8 miles (171.9 km) and usually takes 02h 19m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Hamlin is a useful midpoint, sitting about 53.3 miles from Bethlehem and 53.5 miles from Allen.
How much longer is the road route than the straight-line distance?
The direct path is about 95.6 miles (153.9 km), while the road route adds roughly 11.2 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 1:52 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $15.40 one way or $30.81 round trip. Estimated CO2 is about 33.5 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Bethlehem and Sunny near Allen.
Stop Ideas Near Hamlin
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Hamlin.
Elizabethtown station
Mount Joy
Middletown
Lancaster station
Flight Path Map
This map shows the direct air route between Bethlehem and Allen. Straight-line distance: 95.64 mi (153.91 km).
#1 Bethlehem
The second most populous city in Northampton County, Pennsylvania.
| Population | 74,892 |
| Coordinates | 40.6259300, -75.3704600 |
| Altitude | 109 |
| Country | United States |
#2 Allen
Township in Northampton County, Pennsylvania, United States of America
| Population | 5,092 |
| Coordinates | 40.1653700, -77.0844200 |
| Altitude | 156 |
| Country | United States |
End: Allen (-77.08442, 40.16537)
Estimated Travel Time
Distance: 172 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 33m |
| 40 mph (64.37 km/h) | 02h 40m |
| 50 mph (80.47 km/h) | 02h 08m |
| 60 mph (96.56 km/h) | 01h 46m |
| 70 mph (112.65 km/h) | 01h 31m |
| 80 mph (129 km/h) | 01h 19m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $15.40 | $30.81 |
| Mid-grade | $4.60 | $17.34 | $34.68 |
| Premium | $4.95 | $18.68 | $37.35 |
| Diesel | $5.98 | $22.54 | $45.09 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Pennsylvania · May 30, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.