How far is Duncansville, PA from Allentown, PA?
The driving distance from Duncansville, PA to Allentown, PA is about 207 miles (333.2 km), with a travel time of about 03h 28m by car.
- The straight-line flight distance is about 155.2 miles (249.7 km).
- For a round trip, plan for roughly 06h 56m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM EDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 03h 28m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
Unincorporated community in Cumberland County, Pennsylvania, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers Likely then Partly Sunny
Rain Showers Likely
Driving Route Map
The map below follows the saved road route between Duncansville and Allentown.
Turn-by-Turn Driving Directions
Step-by-step road directions between Duncansville and Allentown.
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1
Start on 3rd Avenue
1557 ft · 40 sec · 3rd Avenue
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2
Continue on 3rd Avenue
73 m · 8 sec · 3rd Avenue
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3
Turn left onto Dummings Highway
887 ft · 24 sec · Dummings Highway
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4
Continue on Dunnings Highway
1.7 mi · 2 min · Dunnings Highway
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5
Continue on Bedford Street
1726 ft · 31 sec · Bedford Street
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6
Continue on Old US Highway 220
1.3 mi · 2 min · Old US Highway 220
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7
Continue on Dunnings Highway
1506 ft · 30 sec · Dunnings Highway
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8
Take the ramp slight right
831 ft · 20 sec
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9
Keep slight left
1.2 km · 2 min
-
10
Merge slight left
22.3 mi · 24 min
-
11
Take the exit slight right toward Pittsburgh, Harrisburg
1.4 km · 2 min
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12
Keep slight right to continue on US 220 Business South: Bedford
87 m · 8 sec
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13
Turn slight right onto Business 220
1083 ft · 26 sec · Business 220
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14
Take the ramp slight right toward I 70, I 76, PATP: Pittsburgh, Harrisburg
991 ft · 24 sec
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15
Keep slight left to continue on I 76 East, I 70 East: Harrisburg
2050 ft · 50 sec
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16
Merge slight left onto Pennsylvania Turnpike
81 mi · 1 hr 29 min · Pennsylvania Turnpike
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17
Take the exit slight right toward I 81, US 11: Carlisle, Harrisburg
1.4 km · 2 min
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18
Keep slight left to continue on US 11 North: Harrisburg
1712 ft · 55 sec
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19
Continue on Harrisburg Pike
1.1 mi · 2 min · Harrisburg Pike
-
20
Take the exit straight toward I 81 North: Harrisburg
1358 ft · 34 sec
-
21
Merge slight left
12.7 mi · 15 min
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22
Take the exit slight right toward US 11, US 15: Enola, Marysville
931 ft · 14 sec
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23
Keep slight left to continue on US 11 North, US 15 North: Marysville
1828 ft · 28 sec
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24
Keep slight left
2072 ft · 32 sec
-
25
Merge slight left onto George N. Wade Memorial Bridge
1.2 km · 1 min · George N. Wade Memorial Bridge
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26
Continue on American Legion Memorial Highway
3.4 mi · 5 min · American Legion Memorial Highway
-
27
Keep slight left to continue on American Legion Memorial Highway
19.1 mi · 23 min · American Legion Memorial Highway
-
28
Take the exit slight right toward I 78 East: Allentown
1.1 km · 45 sec
-
29
Continue on 78th Division Highway
7.6 mi · 9 min · 78th Division Highway
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30
Continue on William Penn Highway
42.8 mi · 51 min · William Penn Highway
-
31
Keep slight right to continue on Lehigh Valley Thruway
1.5 km · 1 min · Lehigh Valley Thruway
-
32
Take the exit slight right toward Cetronia
1053 ft · 27 sec
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33
Turn straight onto Tilghman Street
4.9 mi · 8 min · Tilghman Street
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34
Arrive at your destination
0 m · 1 sec · Tilghman Street
Car Route Details
A richer read on the saved driving route between Duncansville and Allentown.
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
Merge slight left onto Pennsylvania Turnpike
81 mi · 01h 29m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Rain Showers Likely then Partly Sunny leaving Duncansville 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 Duncansville to Allentown?
The road trip is about 207 miles (333.2 km) and usually takes 03h 28m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Plainfield is a useful midpoint, sitting about 103.1 miles from Duncansville and 104 miles from Allentown.
How much longer is the road route than the straight-line distance?
The direct path is about 155.2 miles (249.7 km), while the road route adds roughly 51.8 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 6:00 AM to 8:00 AM EDT. If you want a more comfortable same-day return, try to leave by 10:04 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $29.87 one way or $59.74 round trip. Estimated CO2 is about 65 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers Likely then Partly Sunny around Duncansville and Rain Showers Likely near Allentown.
Stop Ideas Near Plainfield
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 Plainfield.
Harrisburg Transportation Center
Middletown
Lewistown
Elizabethtown station
Flight Path Map
This map shows the direct air route between Duncansville and Allentown. Straight-line distance: 155.14 mi (249.68 km).
#1 Duncansville
Borough of Pennsylvania
| Population | 1,148 |
| Coordinates | 40.4234100, -78.4339000 |
| Altitude | 316 |
| 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: 333 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 53m |
| 40 mph (64.37 km/h) | 05h 10m |
| 50 mph (80.47 km/h) | 04h 08m |
| 60 mph (96.56 km/h) | 03h 27m |
| 70 mph (112.65 km/h) | 02h 57m |
| 80 mph (129 km/h) | 02h 34m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $29.87 | $59.74 |
| Mid-grade | $4.60 | $33.62 | $67.24 |
| Premium | $4.95 | $36.21 | $72.43 |
| Diesel | $5.98 | $43.71 | $87.43 |
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.