Allentown to Clinton is 300.3 miles and takes about 5h 55m via Pennsylvania Turnpike, William Penn Highway, and I-81, with a fuel budget near $50 and enough daylight to finish in a day. This drive stays within Pennsylvania, moving from the Northeast region towards another part of the Northeast. It's a primarily highway route, so expect a straightforward trip with minimal time spent on slower surface roads. Given the relatively short duration and manageable distance, this trip is well-suited for a single day of travel.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
150.2 miles from Allentown, PA
A natural place for your longest stop of the day
, about 2h 59m into the drive
.
Main Roads
Road
Distance
Duration
Pennsylvania Turnpike
170.5 mi
3h 7m
William Penn Highway
43.1 mi
51m
I 81
36.6 mi
44m
Penn-Lincoln Parkway East
24.4 mi
33m
78th Division Highway
7.6 mi
8m
Airport Expressway
5.4 mi
6m
Tilghman Street
5 mi
8m
Airport Parkway
2 mi
2m
Longest stretch:
Pennsylvania Turnpike
— 170.5 mi, about 3h 7m
Traffic on I-81
Hour-of-day weekday pattern from 56 FHWA count stations on your route.
Peak
4 PM
~2,785 veh/hr typical
Quietest
1 AM
~380 veh/hr
Peak-to-quiet ratio
7.3×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 52 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Allentown, PA and Clinton, PA.
1
Start on Tilghman Street
5.0 mi·8 min·Tilghman Street
Use the straight lane.
2
Take the ramp
0.1 mi·18 sec
Toward US 22 West: Harrisburg
3
Merge onto US 22
0.7 mi·54 sec·Lehigh Valley Thruway
4
Merge onto I 78; US 22
43 mi·51 min·William Penn Highway
Use the straight lane.
5
Continue on I 78; US 22
7.6 mi·8 min·78th Division Highway
6
Keep slight left at fork
0.7 mi·49 sec
Exit 1BToward I 81 South: Harrisburg
7
Merge onto I 81
37 mi·44 min·I 81
8
Take the exit
0.3 mi·48 sec
Exit 52Toward US 11: New Kingstown, MiddlesexUse the slight right lane.
9
Keep slight right at fork
201 ft·7 sec
Toward US 11 SouthUse the right lane.
10
Merge onto US 11
1.0 mi·2 min·Harrisburg Pike
Use the straight / right lanes.
11
Take the exit
0.5 mi·1 min
Toward I 76, PATP
12
Keep slight right at fork
0.2 mi·37 sec
Toward I 76 West: PittsburghUse the slight right lane.
13
Merge onto I 76; PATP
171 mi·3 hr 7 min·Pennsylvania Turnpike
14
Take the exit
0.6 mi·2 min
Exit 57Toward I 376 West, US 22: Pittsburgh, MonroevilleUse the slight right lane.
15
Keep slight left at fork
0.2 mi·23 sec
Toward US 22 Business, I 376 West, US 22 West: Monroeville, Pittsburgh
16
Keep slight right at fork
353 ft·8 sec
Toward I 376 West, US 22 West: Pittsburgh
17
Merge onto I 376; US 22
24 mi·33 min·Penn-Lincoln Parkway East
Use the slight left lane.
18
Continue on I 376
2.0 mi·2 min·Airport Parkway
Use the straight / slight right lanes.
19
Keep slight left at fork onto I 376
5.4 mi·6 min·Airport Expressway
Use the straight / slight right lanes.
20
Take the exit
0.3 mi·35 sec
Exit 52Toward ClintonUse the slight right lane.
21
Keep slight left at fork
103 ft·7 sec
Toward Clinton, Raccoon Creek State Park
22
Turn left onto Clinton Road
0.9 mi·1 min·Clinton Road
23
Turn left
337 ft·26 sec
24
Turn right onto Hamilton Lane
0.1 mi·27 sec·Hamilton Lane
25
Arrive at destination
Hamilton Lane
Trip Plan
To make the most of this 5h 55m drive, consider leaving Allentown early in the morning to avoid potential traffic. The route is largely highway, so it's easy to cover ground quickly. You'll have one main stretch of 170.5 miles on the Pennsylvania Turnpike, so plan your first break around that. With a fuel cost estimated at $50, ensure your tank is full before you depart, as fuel stops on the turnpike can sometimes be pricier. Given the single-day recommendation, there's no need to plan for an overnight stay.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 150.2 miles from Allentown, PA, or about 2h 59m into the drive.
The longest continuous stretch on this route runs about 170.5 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 66 miles or 1h 21m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 150.2 miles or 2h 59m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 4h 44m
Traffic, exits, and arrival timing usually matter more near Clinton, PA than in the middle of the route.
Before You Leave
+
Open the route before leaving Allentown, 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 Allentown, PA
This is one driving day of about 300.3 miles and 5h 55m.
Your first comfortable stop window is around 66 miles from Allentown, PA.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on Pennsylvania Turnpike for about 170.5 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Home stretch
4.6 mi from route
~11 min detour
$20 to $30
Imperial, Pennsylvania
Hours: 11 am–9 pm
+17246951017
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 22
5 decision points cluster between mile 93.8 and 267.1 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
8
93.8 mi into trip|~1h 54m in
Take the exit toward US 11: New Kingstown, Middlesex
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 52
Toward US 11: New Kingstown, Middlesex
8
94.1 mi into trip|~1h 55m in
Keep slight right at fork toward US 11 South
Highway fork - watch signs carefully. Lane positioning matters here
Use the right lane.
Toward US 11 South
7
95.6 mi into trip|~1h 59m in
Keep slight right at fork toward I 76 West: Pittsburgh
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight right lane.
Toward I 76 West: Pittsburgh
8
266.3 mi into trip|~5h 7m in
Take the exit toward I 376 West, US 22: Pittsburgh, Monroeville
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 57
Toward I 376 West, US 22: Pittsburgh, Monroevil...
7
267.1 mi into trip|~5h 9m in
Keep slight right at fork toward I 376 West, US 22 West: Pittsburgh
Highway fork - watch signs carefully. Multiple destination signs - pick the right one
Toward I 376 West, US 22 West: Pittsburgh
Fuel & Cost
Regular Gas
$47.88 one way
$95.76 round trip
$4.05/gal25.4 MPG avg105 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.48
$52.99
$105.98
premium
$4.81
$56.84
$113.69
diesel
$4.80
$56.70
$113.40
Estimated Tolls: $22.22
Pennsylvania Turnpike
(170.5 mi)$22.17
Lehigh Valley Thruway
(0.7 mi)$0.05
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
$48
Tolls
$22
Meals
$25–$50
Total
$95–$120
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 105.1 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $32 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
90.1
1
$31.53
$14.41
Efficient EV
75.1
0
$26.28
$12.01
EV Truck/SUV
120.1
1
$42.04
$19.22
Gas CO2
105 kg
EV CO2
35 kg (67% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
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 Jul 15, 2026
Origin
Allentown, PA
Late night
in Allentown on Monday
Local time
3:39 AM
EDT
Current temp
73°F
Clear
SW 5 mph0% chanceLive forecast
Heat Advisory
Heat Advisory issued July 15 at 2:51AM EDT until July 15 at 8:00PM EDT by NWS Mount Holly NJ
Extreme Heat Warning
Extreme Heat Warning issued July 15 at 2:51AM EDT until July 15 at 8:00PM EDT by NWS Mount Holly NJ
Destination
Clinton, PA
Late night
in Clinton on Monday
Local time
3:39 AM
EDT
Current temp
72°F
Mostly Clear
W 5 mph0% chanceLive forecast
Heat Advisory
Heat Advisory issued July 15 at 2:51AM EDT until July 15 at 8:00PM EDT by NWS Mount Holly NJ
Extreme Heat Warning
Extreme Heat Warning issued July 15 at 2:51AM EDT until July 15 at 8:00PM EDT by NWS Mount Holly NJ
82°F
Martinsburg, PA
150 mi in
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
1 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
5h 55m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
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.
Appalachian National Scenic Trail
National Scenic Trail
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...
3 mi from route
~7 min detour
Free
near mile 51.8
Park Closure: List of trail closures post-Hurricane Helene
Caution: Black Bears Frequenting the McAfee Knob Area in Virginia
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...
4 mi from route
~10 min detour
Free
near mile 93.2
On Tuesday morning, September 11, 2001, the U.S. came under attack when four commercial airliners were hijacked and used to strike targets on the ground. Nearly 3,000 people tragically lost their live...
7 mi from route
~18 min detour
Free
near mile 207.1
The battle at Fort Necessity in the summer of 1754 was the opening action of the French and Indian War. This war was a clash of British, French and American Indian cultures. It ended with the removal...
24 mi from route
~61 min detour
Free
near mile 238.2
The South Fork Dam failed on Friday, May 31, 1889, and unleashed 20,000,000 tons of water that devastated Johnstown, PA. The flood killed 2,209 people but it brought the nation and the world together...
24 mi from route
~60 min detour
Free
near mile 186.4
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This route is predominantly highway driving, with 80% of the 300.3 miles on major roadways. You'll spend the longest continuous stretch, 170.5 miles, on the Pennsylvania Turnpike. After that, you'll transition to roads like William Penn Highway and I-81. Expect a significant amount of exits and on-ramps as you navigate the highway system for most of the trip.
80% highway — fuel and pacing are the main things to plan.
25 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 170.5 mi on Pennsylvania Turnpike.
How Hard Is This Drive?
10/10
This is a straightforward highway drive that stays mostly on Pennsylvania Turnpike and William Penn Highway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 93.8 miles in.
Driving Effort10/10
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 22 significant decision points across 300.3 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 93.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 94.1 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 95.6 miles: Highway fork - watch signs carefully. Lane positioning matters here.
Elevation Profile
Gently rolling terrain
2,193 ft346 ft
Total Climb
2,518 ft
Total Descent
1,654 ft
Highest Point
2,193 ft
~214.5 mi in
Elevation Range
1,846 ft
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Allentown, PA and Clinton, PA, road signs point toward Middlesex, Patp, Monroeville and Pittsburgh.
Middlesex
93.8 mi in|~1h 54m
Patp
95.1 mi in|~1h 57m
Monroeville
266.3 mi in|~5h 7m
Pittsburgh
266.9 mi in|~5h 9m
Detours Along the Way
Tagged by where each one fits in your drive — first break, midpoint, final stretch.
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.
Top landmarks
•Albertus L. Meyers Bridge — bridge in United States of America
•Allentown Masonic Temple — masonic temple in Allentown, Pennsylvania
•Allentown National Bank — bank building in Allentown, Pennsylvania
Doable as a same-day drive at 5h 55m. Total distance: 300.3 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
5h 55m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (80%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 170.5 miles on Pennsylvania Turnpike. The full list of main roads is in the Roads section above.
Expect about $22.22 in tolls one way, starting with Pennsylvania Turnpike. 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.
Yes — we found about 23 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
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 Clinton, 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. Plan at least 1 meaningful breaks. There are 23 rest areas along the route for bathroom stops.
The main spots that need attention: at 93.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 94.1 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 95.6 miles: Highway fork - watch signs carefully. Lane positioning matters here.
Yes — Appalachian National Scenic Trail, Carlisle Federal Indian Boarding School National Monument and Flight 93 National Memorial (5 total within detour distance). See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 5.9 hours each way, a round trip means 11.9 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Clinton, PA before the return drive.
