How far is Duncannon, PA from Allentown, PA?
The driving distance from Duncannon, PA to Allentown, PA is about 91.8 miles (147.8 km), with a travel time of about 01h 35m by car.
- The straight-line flight distance is about 81.8 miles (131.7 km).
- For a round trip, plan for roughly 03h 10m 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 35m.
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.
Sunny
Driving Route Map
The map below follows the saved road route between Duncannon and Allentown.
Turn-by-Turn Driving Directions
Step-by-step road directions between Duncannon and Allentown.
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1
Start on North Market Street
2173 ft · 1 min · North Market Street
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2
Continue on Newport Road
2112 ft · 51 sec · Newport Road
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3
Merge slight left
11.4 mi · 16 min
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4
Take the exit slight right toward I 81 North, US 322 East, I 81 South: Hershey, Hazleton, Carlisle
968 ft · 21 sec
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5
Keep slight left to continue on I 81 North, US 322 East: Hershey, Hazleton
1.4 km · 2 min
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6
Merge slight left onto American Legion Memorial Highway
1.8 mi · 2 min · American Legion Memorial Highway
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7
Keep slight left to continue on American Legion Memorial Highway
19.1 mi · 23 min · American Legion Memorial Highway
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8
Take the exit slight right toward I 78 East: Allentown
1.1 km · 45 sec
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9
Continue on 78th Division Highway
7.6 mi · 9 min · 78th Division Highway
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10
Continue on William Penn Highway
42.8 mi · 51 min · William Penn Highway
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11
Keep slight right to continue on Lehigh Valley Thruway
1.5 km · 1 min · Lehigh Valley Thruway
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12
Take the exit slight right toward Cetronia
1053 ft · 27 sec
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13
Turn straight onto Tilghman Street
4.9 mi · 8 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 Duncannon 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.
William Penn Highway
Continue on William Penn Highway
42.8 mi · 00h 51m
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.
Sunny leaving Duncannon and Sunny near Allentown.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Duncannon to Allentown?
The road trip is about 91.8 miles (147.8 km) and usually takes 01h 35m 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 45.5 miles from Duncannon and 46.3 miles from Allentown.
How much longer is the road route than the straight-line distance?
The direct path is about 81.8 miles (131.7 km), while the road route adds roughly 10 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 3:20 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $13.24 one way or $26.48 round trip. Estimated CO2 is about 28.8 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Duncannon and Sunny near Allentown.
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 Duncannon and Allentown. Straight-line distance: 81.83 mi (131.69 km).
#1 Duncannon
Borough in southeastern Perry County, Pennsylvania
| Population | 1,481 |
| Coordinates | 40.3981400, -77.0230300 |
| Altitude | 107 |
| 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: 148 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 03m |
| 40 mph (64.37 km/h) | 02h 17m |
| 50 mph (80.47 km/h) | 01h 50m |
| 60 mph (96.56 km/h) | 01h 31m |
| 70 mph (112.65 km/h) | 01h 18m |
| 80 mph (129 km/h) | 01h 08m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $13.24 | $26.48 |
| Mid-grade | $4.60 | $14.90 | $29.80 |
| Premium | $4.95 | $16.05 | $32.10 |
| Diesel | $5.98 | $19.38 | $38.75 |
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 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.