How far is Greencastle, PA from Allentown, PA?
The driving distance from Greencastle, PA to Allentown, PA is about 142.3 miles (229 km), with a travel time of about 02h 22m by car.
- The straight-line flight distance is about 130.9 miles (210.7 km).
- For a round trip, plan for roughly 04h 45m 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 22m.
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.
Chance Rain Showers
Rain Showers Likely
Driving Route Map
The map below follows the saved road route between Greencastle and Allentown.
Turn-by-Turn Driving Directions
Step-by-step road directions between Greencastle and Allentown.
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1
Start on West Baltimore Street
3045 ft · 2 min · West Baltimore Street
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2
Continue on Buchanan Trail East
1447 ft · 40 sec · Buchanan Trail East
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3
Turn left onto I 81 North: Chambersburg
1043 ft · 25 sec
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4
Merge slight left
59.3 mi · 1 hr 11 min
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5
Take the exit slight right toward US 11, US 15: Enola, Marysville
931 ft · 14 sec
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6
Keep slight left to continue on US 11 North, US 15 North: Marysville
1828 ft · 28 sec
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7
Keep slight left
2072 ft · 32 sec
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8
Merge slight left onto George N. Wade Memorial Bridge
1.2 km · 1 min · George N. Wade Memorial Bridge
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9
Continue on American Legion Memorial Highway
3.4 mi · 5 min · American Legion Memorial Highway
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10
Keep slight left to continue on American Legion Memorial Highway
19.1 mi · 23 min · American Legion Memorial Highway
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11
Take the exit slight right toward I 78 East: Allentown
1.1 km · 45 sec
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12
Continue on 78th Division Highway
7.6 mi · 9 min · 78th Division Highway
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13
Continue on William Penn Highway
42.8 mi · 51 min · William Penn Highway
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14
Keep slight right to continue on Lehigh Valley Thruway
1.5 km · 1 min · Lehigh Valley Thruway
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15
Take the exit slight right toward Cetronia
1053 ft · 27 sec
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16
Turn straight onto Tilghman Street
4.9 mi · 8 min · Tilghman Street
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17
Arrive at your destination
0 m · 1 sec · Tilghman Street
Car Route Details
A richer read on the saved driving route between Greencastle 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.
I 81 North
Merge slight left
59.3 mi · 01h 11m
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.
Chance Rain Showers leaving Greencastle 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 Greencastle to Allentown?
The road trip is about 142.3 miles (229 km) and usually takes 02h 22m 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?
Skyline View is a useful midpoint, sitting about 70.8 miles from Greencastle and 71.5 miles from Allentown.
How much longer is the road route than the straight-line distance?
The direct path is about 130.9 miles (210.7 km), while the road route adds roughly 11.4 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 1:44 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $20.51 one way or $41.02 round trip. Estimated CO2 is about 44.6 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain Showers around Greencastle and Rain Showers Likely near Allentown.
Stop Ideas Near Skyline View
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 Skyline View.
Harrisburg Transportation Center
Middletown
Elizabethtown station
Mount Joy
Flight Path Map
This map shows the direct air route between Greencastle and Allentown. Straight-line distance: 130.91 mi (210.68 km).
#1 Greencastle
Borough of Pennsylvania
| Population | 3,989 |
| Coordinates | 39.7903700, -77.7277700 |
| Altitude | 178 |
| 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: 229 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 44m |
| 40 mph (64.37 km/h) | 03h 33m |
| 50 mph (80.47 km/h) | 02h 50m |
| 60 mph (96.56 km/h) | 02h 22m |
| 70 mph (112.65 km/h) | 02h 01m |
| 80 mph (129 km/h) | 01h 46m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $20.51 | $41.02 |
| Mid-grade | $4.60 | $23.09 | $46.17 |
| Premium | $4.95 | $24.87 | $49.74 |
| Diesel | $5.98 | $30.02 | $60.04 |
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.