How far is Allentown, PA from Langhorne, PA?
The driving distance from Allentown, PA to Langhorne, PA is about 65.1 miles (104.8 km), with a travel time of about 01h 18m by car.
- The straight-line flight distance is about 42.3 miles (68.1 km).
- For a round trip, plan for roughly 02h 36m 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 01h 18m.
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.
Census designated place
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers Likely
Rain Showers
Driving Route Map
The map below follows the saved road route between Allentown and Langhorne.
Turn-by-Turn Driving Directions
Step-by-step road directions between Allentown and Langhorne.
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1
Start on Tilghman Street
4.5 mi · 7 min · Tilghman Street
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2
Take the ramp straight toward I 476, PATP
1969 ft · 1 min
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3
Keep slight right to continue on I 476 South: Philadelphia
1895 ft · 47 sec
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4
Merge slight left onto Pennsylvania Turnpike Northeast Extension
36.9 mi · 40 min · Pennsylvania Turnpike Northeast Extension
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5
Take the exit slight right toward I 276 East: New Jersey
1651 ft · 40 sec
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6
Merge slight left onto Pennsylvania Turnpike
17.4 mi · 19 min · Pennsylvania Turnpike
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7
Take the exit slight right toward US 1: Philadelphia, Trenton
3046 ft · 2 min
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8
Keep slight left to continue on US 1 North: Trenton, Princeton
2491 ft · 1 min
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9
Merge slight left onto Lincoln Highway
1.6 km · 1 min · Lincoln Highway
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10
Continue on Martin Luther King Jr. Expressway
2.1 mi · 3 min · Martin Luther King Jr. Expressway
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11
Take the exit slight right toward Hulmeville Avenue
142 m · 11 sec
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12
Turn straight onto Service Road
151 m · 14 sec · Service Road
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13
Turn right onto Hulmeville Avenue
129 m · 14 sec · Hulmeville Avenue
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14
Turn right onto West Highland Avenue
130 m · 16 sec · West Highland Avenue
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15
Turn right onto West Interchange
1374 ft · 39 sec · West Interchange
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16
Turn right onto West Gillam Avenue
102 m · 15 sec · West Gillam Avenue
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17
Turn left onto Hulmeville Avenue
1711 ft · 49 sec · Hulmeville Avenue
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18
Turn right onto West Richardson Avenue
700 ft · 19 sec · West Richardson Avenue
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19
Arrive at your destination
0 m · 1 sec · West Richardson Avenue
Car Route Details
A richer read on the saved driving route between Allentown and Langhorne.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Pennsylvania Turnpike Northeast Extension
Merge slight left onto Pennsylvania Turnpike Northeast Extension
36.9 mi · 00h 40m
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.
Rain Showers Likely leaving Allentown and Rain Showers near Langhorne.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Allentown to Langhorne?
The road trip is about 65.1 miles (104.8 km) and usually takes 01h 18m 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?
Kulpsville is a useful midpoint, sitting about 32.6 miles from Allentown and 32.6 miles from Langhorne.
How much longer is the road route than the straight-line distance?
The direct path is about 42.3 miles (68.1 km), while the road route adds roughly 22.8 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 3:54 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $9.40 one way or $18.80 round trip. Estimated CO2 is about 20.4 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers Likely around Allentown and Rain Showers near Langhorne.
Stop Ideas Near Kulpsville
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 Kulpsville.
Paoli
Ardmore
North Philadelphia station
Exton
Flight Path Map
This map shows the direct air route between Allentown and Langhorne. Straight-line distance: 42.32 mi (68.1 km).
#1 Allentown
The third most populous city in Pennsylvania.
| Population | 121,470 |
| Coordinates | 40.6084300, -75.4901800 |
| Altitude | 103 |
| Country | United States |
#2 Langhorne
Borough in Bucks County, Pennsylvania, United States
| Population | 1,507 |
| Coordinates | 40.1745500, -74.9226700 |
| Altitude | 67 |
| Country | United States |
End: Langhorne (-74.92267, 40.17455)
Estimated Travel Time
Distance: 105 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 10m |
| 40 mph (64.37 km/h) | 01h 37m |
| 50 mph (80.47 km/h) | 01h 18m |
| 60 mph (96.56 km/h) | 01h 05m |
| 70 mph (112.65 km/h) | 00h 55m |
| 80 mph (129 km/h) | 00h 48m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $9.40 | $18.80 |
| Mid-grade | $4.60 | $10.58 | $21.16 |
| Premium | $4.95 | $11.39 | $22.79 |
| Diesel | $5.98 | $13.75 | $27.51 |
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 · Apr 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.