How far is Thornhurst, PA from Allentown, PA?
The driving distance from Thornhurst, PA to Allentown, PA is about 55.4 miles (89.2 km), with a travel time of about 01h 04m by car.
- The straight-line flight distance is about 39.6 miles (63.8 km).
- For a round trip, plan for roughly 02h 08m 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 04m.
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.
Borough and county seat of Carbon County, Pennsylvania
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers Likely
Rain Showers Likely
Driving Route Map
The map below follows the saved road route between Thornhurst and Allentown.
Turn-by-Turn Driving Directions
Step-by-step road directions between Thornhurst and Allentown.
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1
Start on River Road
2 mi · 4 min · River Road
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2
Continue on Buck River Road
3 mi · 5 min · Buck River Road
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3
At the end of the road, turn left onto Buck Boulevard
7.8 mi · 12 min · Buck Boulevard
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4
Turn right
7.2 mi · 11 min
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5
Take the ramp left toward PATP South, I 476 South: Allentown
1499 ft · 37 sec
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6
Merge slight left onto Pennsylvania Turnpike Northeast Extension
29.4 mi · 32 min · Pennsylvania Turnpike Northeast Extension
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7
Take the exit slight right toward I 78, US 22, PA 309: Allentown, Harrisburg
2233 ft · 1 min
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8
Turn slight right onto US 22 East: Allentown
975 ft · 29 sec
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9
Merge slight left onto Lehigh Valley Thruway
1762 ft · 27 sec · Lehigh Valley Thruway
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10
Take the exit slight right toward PA 309 South: Quakertown
2245 ft · 55 sec
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11
Merge slight left
2844 ft · 44 sec
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12
Take the exit slight right toward Tilghman Street East
886 ft · 22 sec
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13
Turn straight onto Tilghman Street
3.6 mi · 6 min · Tilghman Street
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14
Arrive at your destination
0 m · 1 sec · Tilghman Street
Car Route Details
A richer read on the saved driving route between Thornhurst and Allentown.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Pennsylvania Turnpike Northeast Extension
Merge slight left onto Pennsylvania Turnpike Northeast Extension
29.4 mi · 00h 32m
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 Thornhurst and Rain Showers Likely near Allentown.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Thornhurst to Allentown?
The road trip is about 55.4 miles (89.2 km) and usually takes 01h 04m 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?
Jim Thorpe is a useful midpoint, sitting about 27.7 miles from Thornhurst and 27.7 miles from Allentown.
How much longer is the road route than the straight-line distance?
The direct path is about 39.6 miles (63.8 km), while the road route adds roughly 15.8 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 4:22 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $7.97 one way or $15.94 round trip. Estimated CO2 is about 17.3 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers Likely around Thornhurst and Rain Showers Likely near Allentown.
Stop Ideas Near Jim Thorpe
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 Jim Thorpe.
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Flight Path Map
This map shows the direct air route between Thornhurst and Allentown. Straight-line distance: 39.66 mi (63.83 km).
#1 Thornhurst
Township in Pennsylvania, United States
| Population | 1,026 |
| Coordinates | 41.1784200, -75.5804700 |
| Altitude | 471 |
| Country | United States |
#2 Allentown
The third most populous city in Pennsylvania.
| Population | 121,470 |
| Coordinates | 40.6084300, -75.4901800 |
| Altitude | 103 |
| Country | United States |
End: Tilghman Street (-75.490007, 40.608068)
Estimated Travel Time
Distance: 89 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 50m |
| 40 mph (64.37 km/h) | 01h 23m |
| 50 mph (80.47 km/h) | 01h 06m |
| 60 mph (96.56 km/h) | 00h 55m |
| 70 mph (112.65 km/h) | 00h 47m |
| 80 mph (129 km/h) | 00h 41m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $7.97 | $15.94 |
| Mid-grade | $4.60 | $8.97 | $17.94 |
| Premium | $4.95 | $9.66 | $19.32 |
| Diesel | $5.98 | $11.66 | $23.32 |
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.