How far is State Line, PA from Allentown, PA?
The driving distance from State Line, PA to Allentown, PA is about 145.8 miles (234.7 km), with a travel time of about 02h 26m by car.
- The straight-line flight distance is about 132.8 miles (213.8 km).
- For a round trip, plan for roughly 04h 52m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM EST.
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 26m.
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.
Mostly Sunny
Driving Route Map
The map below follows the saved road route between State Line and Allentown.
Turn-by-Turn Driving Directions
Step-by-step road directions between State Line and Allentown.
-
1
Start on Pennsylvania Avenue North
822 ft · 17 sec · Pennsylvania Avenue North
-
2
Continue on Molly Pitcher Highway
1.8 mi · 3 min · Molly Pitcher Highway
-
3
Take the ramp slight right
2289 ft · 56 sec
-
4
Merge slight left
61.5 mi · 1 hr 13 min
-
5
Take the exit slight right toward US 11, US 15: Enola, Marysville
931 ft · 14 sec
-
6
Keep slight left to continue on US 11 North, US 15 North: Marysville
1828 ft · 28 sec
-
7
Keep slight left
2072 ft · 32 sec
-
8
Merge slight left onto George N. Wade Memorial Bridge
1.2 km · 1 min · George N. Wade Memorial Bridge
-
9
Continue on American Legion Memorial Highway
3.4 mi · 5 min · American Legion Memorial Highway
-
10
Keep slight left to continue on American Legion Memorial Highway
19.1 mi · 23 min · American Legion Memorial Highway
-
11
Take the exit slight right toward I 78 East: Allentown
1.1 km · 45 sec
-
12
Continue on 78th Division Highway
7.6 mi · 9 min · 78th Division Highway
-
13
Continue on William Penn Highway
42.8 mi · 51 min · William Penn Highway
-
14
Keep slight right to continue on Lehigh Valley Thruway
1.5 km · 1 min · Lehigh Valley Thruway
-
15
Take the exit slight right toward Cetronia
1053 ft · 27 sec
-
16
Turn straight onto Tilghman Street
4.9 mi · 8 min · Tilghman Street
-
17
Arrive at your destination
0 m · 1 sec · Tilghman Street
Car Route Details
A richer read on the saved driving route between State Line 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.
Molly Pitcher Highway
Merge slight left
61.5 mi · 01h 13m
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 State Line and Mostly Sunny near Allentown.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from State Line to Allentown?
The road trip is about 145.8 miles (234.7 km) and usually takes 02h 26m 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?
Linglestown is a useful midpoint, sitting about 72.5 miles from State Line and 73.3 miles from Allentown.
How much longer is the road route than the straight-line distance?
The direct path is about 132.8 miles (213.8 km), while the road route adds roughly 13 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 EST. If you want a more comfortable same-day return, try to leave by 1:38 PM EST.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $22.42 one way or $44.85 round trip. Estimated CO2 is about 45.8 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around State Line and Mostly Sunny near Allentown.
Stop Ideas Near Linglestown
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 Linglestown.
Harrisburg Transportation Center
Middletown
Elizabethtown station
Mount Joy
Flight Path Map
This map shows the direct air route between State Line and Allentown. Straight-line distance: 132.82 mi (213.76 km).
#1 State Line
State Line is a place in Pennsylvania, United States.
| Population | 0 |
| Coordinates | 39.7248200, -77.7244400 |
| Altitude | 214 |
| 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: 235 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 51m |
| 40 mph (64.37 km/h) | 03h 38m |
| 50 mph (80.47 km/h) | 02h 55m |
| 60 mph (96.56 km/h) | 02h 25m |
| 70 mph (112.65 km/h) | 02h 05m |
| 80 mph (129 km/h) | 01h 49m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.35 | $22.42 | $44.85 |
| Mid-grade | $4.78 | $24.59 | $49.18 |
| Premium | $5.22 | $26.89 | $53.79 |
| Diesel | $6.56 | $33.76 | $67.52 |
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 · Nov 10, 2026