How far is Allentown, PA from Charlestown, PA?
The driving distance from Allentown, PA to Charlestown, PA is about 150.1 miles (241.6 km), with a travel time of about 03h 12m by car.
- The straight-line flight distance is about 138.9 miles (223.5 km).
- For a round trip, plan for roughly 06h 25m 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 12m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
This departure sits inside the recommended comfort window for the route.
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
Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Allentown and Charlestown.
Turn-by-Turn Driving Directions
Step-by-step road directions between Allentown and Charlestown.
-
1
Start on Tilghman Street
5 mi · 8 min · Tilghman Street
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2
Take the ramp slight left toward US 22 West: Harrisburg
698 ft · 18 sec
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3
Merge slight left onto Lehigh Valley Thruway
1.1 km · 54 sec · Lehigh Valley Thruway
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4
Merge slight left onto William Penn Highway
43.1 mi · 52 min · William Penn Highway
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5
Continue on 78th Division Highway
7.6 mi · 9 min · 78th Division Highway
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6
Keep slight left to continue on I 81 South: Harrisburg
1.1 km · 49 sec
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7
Merge slight left
72.6 mi · 1 hr 28 min
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8
Take the exit slight right toward Lincoln Way
743 ft · 18 sec
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9
Turn right onto Lincoln Way East
1.5 mi · 3 min · Lincoln Way East
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10
Keep slight right to continue on Lincoln Way East
13.8 mi · 22 min · Lincoln Way East
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11
Turn sharp left onto Fort Loudon Road
1.1 km · 1 min · Fort Loudon Road
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12
Turn right onto Mountain Road
3.6 mi · 7 min · Mountain Road
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13
Turn sharp left onto Buchanan Trail West
3119 ft · 1 min · Buchanan Trail West
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14
Arrive at your destination
0 m · 1 sec · Buchanan Trail West
Car Route Details
A richer read on the saved driving route between Allentown and Charlestown.
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 South
Merge slight left
72.6 mi · 01h 28m
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 leaving Allentown and Chance Rain Showers near Charlestown.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Allentown to Charlestown?
The road trip is about 150.1 miles (241.6 km) and usually takes 03h 12m 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?
Colonial Park is a useful midpoint, sitting about 74.9 miles from Allentown and 75.2 miles from Charlestown.
How much longer is the road route than the straight-line distance?
The direct path is about 138.9 miles (223.5 km), while the road route adds roughly 11.2 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 10:34 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $21.66 one way or $43.31 round trip. Estimated CO2 is about 47.1 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers Likely around Allentown and Chance Rain Showers near Charlestown.
Stop Ideas Near Colonial Park
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 Colonial Park.
Harrisburg Transportation Center
Middletown
Elizabethtown station
Mount Joy
Flight Path Map
This map shows the direct air route between Allentown and Charlestown. Straight-line distance: 138.9 mi (223.54 km).
#1 Allentown
The third most populous city in Pennsylvania.
| Population | 121,470 |
| Coordinates | 40.6084300, -75.4901800 |
| Altitude | 103 |
| Country | United States |
#2 Charlestown
Township in Chester County, Pennsylvania
| Population | 6,328 |
| Coordinates | 39.8600900, -77.9344400 |
| Altitude | 232 |
| Country | United States |
End: Charlestown (-77.93444, 39.86009)
Estimated Travel Time
Distance: 242 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 00m |
| 40 mph (64.37 km/h) | 03h 45m |
| 50 mph (80.47 km/h) | 03h 00m |
| 60 mph (96.56 km/h) | 02h 30m |
| 70 mph (112.65 km/h) | 02h 08m |
| 80 mph (129 km/h) | 01h 52m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $21.66 | $43.31 |
| Mid-grade | $4.60 | $24.37 | $48.75 |
| Premium | $4.95 | $26.26 | $52.51 |
| Diesel | $5.98 | $31.69 | $63.39 |
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.