This 119.5-mile journey from Shippensburg, PA, to Allentown, PA, is easily manageable as a single-day trip, taking approximately 2 hours and 28 minutes. You'll navigate primarily via the William Penn Highway and I-81, with about 30% of the drive on the interstate. The estimated fuel cost for this drive is around $20, making it an economical option. Given its relatively short duration and straightforward path through the Northeast region, this route is ideal for a quick getaway or a practical link between these two Pennsylvania locations without the need for an overnight stay.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Midpoint
59.8 miles from Shippensburg, PA
A natural place for your longest stop of the day
, about 1h 15m into the drive
.
Main Roads
Road
Distance
Duration
William Penn Highway
42.8 mi
50m
I 81
35.6 mi
43m
American Legion Memorial Highway
22.5 mi
27m
78th Division Highway
7.6 mi
8m
Tilghman Street
4.9 mi
8m
Walnut Bottom Road
1.7 mi
2m
Lehigh Valley Thruway
1 mi
1m
East King Street
0.8 mi
2m
Longest stretch:
William Penn Highway
— 42.8 mi, about 50m
Turn-by-Turn Driving Directions
Step-by-step road directions between Shippensburg, PA and Allentown, PA.
1
Start on US 11; PA 533
0.8 mi·2 min·East King Street
Use the straight lane.
2
Turn slight right onto PA 174
1.7 mi·2 min·Walnut Bottom Road
3
Take the ramp
0.1 mi·19 sec
4
Merge onto I 81
36 mi·43 min·I 81
Use the straight / slight right lanes.
5
Take the exit
0.2 mi·14 sec
Toward US 11, US 15: Enola, Marysville
6
Keep slight left at fork
0.3 mi·28 sec
Toward US 11 North, US 15 North: Marysville
7
Keep slight left at fork
0.4 mi·32 sec
8
Merge onto I 81
0.7 mi·1 min·George N. Wade Memorial Bridge
Use the straight / slight right lanes.
9
Continue on I 81
3.4 mi·4 min·American Legion Memorial Highway
10
Keep slight left at fork onto I 81
19 mi·22 min·American Legion Memorial Highway
Use the straight / slight right lanes.
11
Take the exit
0.7 mi·45 sec
Exit 89Toward I 78 East: Allentown
12
Continue on I 78
7.6 mi·8 min·78th Division Highway
13
Continue on I 78; US 22
43 mi·50 min·William Penn Highway
Use the straight lane.
14
Keep slight right at fork onto US 22
1.0 mi·1 min·Lehigh Valley Thruway
Exit 51Toward US 22 East: Pennsylvania Turnpike, LVI AirportUse the slight right lane.
15
Take the exit
0.2 mi·26 sec
Toward CetroniaUse the slight right lane.
16
Turn straight onto Tilghman Street
4.9 mi·8 min·Tilghman Street
Use the straight lane.
17
Arrive at destination
Tilghman Street
Trip Plan
For this 2-hour and 28-minute drive, leaving in the morning is advisable to make the most of your day. Since the total distance is just over 100 miles and the fuel cost is estimated at a low $20, you won't need extensive planning for stops. The longest stretch is 42.8 miles, so plan for a brief break around that point if needed. Keep an eye out for the transitions between the William Penn Highway and I-81, as this is where the driving character changes. You should have plenty of flexibility to depart and arrive at your convenience.
Morning Departure
Leave by 9 AM and you'll arrive before lunch.
Evening Departure
Even a 4 PM departure gets you there before dark in summer.
You can normally do this drive in one day.
You may only need one short stretch break if traffic stays light.
The halfway point lands around 59.8 miles from Shippensburg, PA, or about 1h 15m into the drive.
The longest continuous stretch on this route runs about 42.8 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 26 miles or 33m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 59.8 miles or 1h 15m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 2h
Traffic, exits, and arrival timing usually matter more near Allentown, PA than in the middle of the route.
Before You Leave
+
Open the route before leaving Shippensburg, PA so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Shippensburg, PA
This is one driving day of about 119.5 miles and 2h 28m.
Your first comfortable stop window is around 26 miles from Shippensburg, PA.
This route can stay practical as a one-day drive if traffic stays reasonable.
The longest stretch is on William Penn Highway for about 42.8 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 12
5 decision points cluster between mile 2.6 and 114.4 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
2.6 mi into trip|~5m in|I 81
Merge onto I 81
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
6
38.4 mi into trip|~48m in
Keep slight left at fork toward US 11 North, US 15 North: Marysville
Highway fork - watch signs carefully. Multiple destination signs - pick the right one
Toward US 11 North, US 15 North: Marysville
6
43.3 mi into trip|~55m in|I 81 / American Legion Memorial Highway
Keep slight left at fork onto I 81 / American Legion Memorial Highway
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
9
113.4 mi into trip|~2h 18m in|US 22 / Lehigh Valley Thruway
Keep slight right at fork onto US 22 / Lehigh Valley Thruway toward US 22 East: Pennsylvania Turnpike, LVI Airport
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 51
Toward US 22 East: Pennsylvania Turnpike, LVI A...
6
114.4 mi into trip|~2h 20m in
Take the exit toward Cetronia
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Toward Cetronia
Fuel & Cost
Regular Gas
$19.81 one way
$39.62 round trip
$4.21/gal25.4 MPG avg42 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.61
$21.70
$43.40
premium
$4.93
$23.18
$46.35
diesel
$5.61
$26.38
$52.77
Estimated Tolls: $0.07
Lehigh Valley Thruway
(1 mi)$0.07
Toll estimates based on average 2024-2025 rates. EZ-Pass/SunPass discounts may lower the actual cost.
Estimated Trip Cost (one way, 1 person)
Fuel
$20
Tolls
$0
Meals
$25–$50
Total
$45–$70
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 41.8 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $13 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
35.9
0
$12.55
$5.74
Efficient EV
29.9
0
$10.46
$4.78
EV Truck/SUV
47.8
0
$16.73
$7.65
Gas CO2
42 kg
EV CO2
14 kg (67% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Apr 20, 2026
Origin
Shippensburg, PA
Morning
in Shippensburg on Tuesday
Local time
6:50 AM
EDT
Current temp
47°F
Unavailable
Live forecast
Destination
Allentown, PA
Morning
in Allentown on Tuesday
Local time
6:50 AM
EDT
Current temp
61°F
Unavailable
Live forecast
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
14 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
2h 28m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Carlisle Federal Indian Boarding School National Monument
National Monument
More than 7,800 children from 140 Tribes went to the Carlisle School from 1879 to 1918. The National Park Service will collaborate with families, affiliated Tribal Nations, the US Army, historians, an...
The Appalachian Trail is a 2,190+ mile long public footpath that traverses the scenic, wooded, pastoral, wild, and culturally resonant lands of the Appalachian Mountains. Conceived in 1921, built by p...
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
Expect a mixed driving experience on this route. While 30% of your travel will be on I-81, providing stretches of faster-paced driving, you'll also spend significant time on the William Penn Highway and American Legion Memorial Highway. The longest continuous stretch without a major road change is 42.8 miles on the William Penn Highway, offering a consistent feel for a good portion of the trip. This blend means you'll experience both highway speeds and potentially more varied local road conditions as you progress toward Allentown.
30% highway, the rest on surface roads — varied driving throughout.
17 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 42.8 mi on William Penn Highway.
How Hard Is This Drive?
9/10
This route mixes highway mileage with some local-road sections near the start or finish. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 2.6 miles in near I 81.
Driving Effort9/10
High effort - long or complex enough to need steady focus all day
Balances navigation complexity with total wheel time.
This is a demanding drive. With 12 significant decision points across 119.5 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 2.6 miles (I 81): Merge point - match speed before joining. Lane positioning matters here; at 38.4 miles: Highway fork - watch signs carefully. Multiple destination signs - pick the right one; at 43.3 miles (I 81 / American Legion Memorial Highway): Highway fork - watch signs carefully. Lane positioning matters here.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Shippensburg, PA and Allentown, PA, road signs point toward Marysville and Lvi Airport.
Allentown is the largest city in the Lehigh Valley region of eastern Pennsylvania, the county seat and largest city in Lehigh County, and the third-largest city in Pennsylvania after Philadelphia and Pittsburgh with a population of 125,845 as of 2020.
Doable as a same-day drive at 2h 28m. Total distance: 119.5 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
2h 28m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (30%). Some complex stretches to watch for.
Scenic Drive
Mixed highway & surface route profile with national parks nearby.
Frequently Asked Questions
The longest stretch is about 42.8 miles on William Penn Highway. The full list of main roads is in the Roads section above.
Expect about $0.07 in tolls one way, starting with Lehigh Valley Thruway. Most Northeast and Midwest toll agencies accept E-ZPass; in the West and Texas, transponders like TxTag or FasTrak apply. If you do not have a transponder, cashless tolling plates will mail a bill to the vehicle's registered address — usually with a surcharge, so a rental-car toll pass is often cheaper than paying by mail.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Allentown, PA before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
The main spots that need attention: at 2.6 miles (I 81): Merge point - match speed before joining. Lane positioning matters here; at 38.4 miles: Highway fork - watch signs carefully. Multiple destination signs - pick the right one; at 43.3 miles (I 81 / American Legion Memorial Highway): Highway fork - watch signs carefully. Lane positioning matters here.
Yes — Carlisle Federal Indian Boarding School National Monument and Appalachian National Scenic Trail. See the National Parks section for detour distances and tips on detours.
Yes. A round trip is manageable in a single day if you plan a break at Allentown, PA before heading back.
