Philadelphia to Somerset is 238.5 miles and takes about 4h 29m via the Pennsylvania Turnpike, with a fuel budget near $40 and enough daylight to finish in a day. This drive stays within Pennsylvania, moving from the Northeast region to another part of the Northeast. It's primarily a highway-focused trip, making it a straightforward option for a single-day journey. If you're looking for an efficient way to get from Philadelphia to Somerset without much fuss, this route is a solid choice.
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
119.3 miles from Philadelphia, PA
A natural place for your longest stop of the day
, about 2h 18m into the drive
.
Main Roads
Road
Distance
Duration
Pennsylvania Turnpike
217 mi
3h 57m
Schuylkill Expressway
16.8 mi
23m
Vine Street Expressway
1 mi
1m
North Pleasant Avenue
0.6 mi
1m
North 16th Street
0.4 mi
<1m
I 76
0.4 mi
1m
Ramada Road
0.3 mi
<1m
East Main Street
0.2 mi
<1m
Longest stretch:
Pennsylvania Turnpike
— 217 mi, about 3h 57m
Turn-by-Turn Driving Directions
Step-by-step road directions between Philadelphia, PA and Somerset, PA.
1
Start on South Penn Square
397 ft·8 sec·South Penn Square
2
Keep slight left at fork onto PA 611
0.1 mi·19 sec·East Penn Square
Use the straight lane.
3
Continue on John F. Kennedy Boulevard
0.2 mi·20 sec·John F. Kennedy Boulevard
Use the straight lane.
4
Turn right onto North 16th Street
0.4 mi·54 sec·North 16th Street
Use the right lane.
5
Take the ramp
0.2 mi·27 sec
Toward I 676 West, US 30 West: International Airport, Valley ForgeUse the right lane.
6
Merge onto I 676; US 30
1.0 mi·1 min·Vine Street Expressway
Use the straight / slight right lanes.
7
Merge onto I 76; US 30
16 mi·22 min·Schuylkill Expressway
Use the straight / slight right lanes.
8
Take the exit
0.1 mi·10 sec
Exit 328B-A/327Toward US 202, US 422 West: King of Prussia, West Chester, PottstownUse the slight right lane.
9
Keep slight left at fork
0.3 mi·22 sec
Toward US 202 South, US 422 West: Mall Boulevard, West Chester, Pottstown, Swedesford RoadUse the straight / slight right lanes.
10
Keep slight left at fork
0.3 mi·20 sec
Toward Mall BoulevardUse the straight / slight right lanes.
11
Keep slight left at fork
0.1 mi·8 sec
Toward I 76 West: New Jersey, Harrisburg
12
Merge onto I 76
0.4 mi·52 sec·Schuylkill Expressway
Toward I 76 West: New Jersey, Harrisburg
13
Keep slight left at fork onto I 76
0.4 mi·1 min·I 76
Toward I 76 West: HarrisburgUse the slight left lane.
14
Merge onto I 76; PATP
217 mi·3 hr 57 min·Pennsylvania Turnpike
Use the straight / slight right lanes.
15
Take the exit
0.4 mi·56 sec
Toward US 219: Somerset, JohnstownUse the slight right lane.
16
Continue on Ramada Road
0.3 mi·34 sec·Ramada Road
Toward US 219: Somerset, Johnstown
17
Continue on North Pleasant Avenue
0.6 mi·1 min·North Pleasant Avenue
18
Turn right onto PA 31; PA 281
0.2 mi·17 sec·East Main Street
19
Arrive at destination
PA 31; PA 281
Trip Plan
Given the 4h 29m estimated drive time, leaving Philadelphia in the morning will give you plenty of daylight to reach Somerset. With only one recommended stop, you can plan for a brief break or push through the 217-mile stretch on the Pennsylvania Turnpike in one go. Fuel costs are estimated at $40, so ensure your tank is full before heading out, as services can be spaced out on longer highway segments. Keep an eye on traffic as you depart Philadelphia, especially on the Schuylkill Expressway and Vine Street Expressway.
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 119.3 miles from Philadelphia, PA, or about 2h 18m into the drive.
The longest continuous stretch on this route runs about 217 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 52 miles or 1h 4m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 119.3 miles or 2h 18m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 3h 41m
Traffic, exits, and arrival timing usually matter more near Somerset, PA than in the middle of the route.
Before You Leave
+
Open the route before leaving Philadelphia, 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 Philadelphia, PA
This is one driving day of about 238.5 miles and 4h 29m.
Your first comfortable stop window is around 52 miles from Philadelphia, 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 217 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 15
5 decision points cluster between mile 0.1 and 19 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
7
0.1 mi into trip|~0m in|PA 611 / East Penn Square
Keep slight left at fork onto PA 611 / East Penn Square
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight lane.
8
18.4 mi into trip|~26m in
Take the exit toward US 202, US 422 West: King of Prussia, West Chester, Pottstown
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 328B-A/327
Toward US 202, US 422 West: King of Prussia, We...
9
18.5 mi into trip|~26m in
Keep slight left at fork toward US 202 South, US 422 West: Mall Boulevard, West Chester, Pottstown, Swedesford Road
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Toward US 202 South, US 422 West: Mall Boulevar...
8
18.8 mi into trip|~27m in
Keep slight left at fork toward Mall Boulevard
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Toward Mall Boulevard
7
19 mi into trip|~27m in
Keep slight left at fork toward I 76 West: New Jersey, Harrisburg
Highway fork - watch signs carefully. Multiple destination signs - pick the right one
Toward I 76 West: New Jersey, Harrisburg
Fuel & Cost
Regular Gas
$39.54 one way
$79.08 round trip
$4.21/gal25.4 MPG avg83 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.61
$43.31
$86.61
premium
$4.93
$46.25
$92.51
diesel
$5.61
$52.66
$105.32
Estimated Tolls: $28.21
Pennsylvania Turnpike
(217 mi)$28.21
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
$40
Tolls
$28
Meals
$25–$50
Total
$93–$118
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 83.4 kg one way.
Prices: EIA weekly data, 2026-04-13.
EV Charging Along Route
9 DC fast chargers
· Coverage: excellent
Wawa - Tesla Supercharger
Philadelphia, PA
Tesla
20 DCFC
Rivers Casino - Tesla Supercharger
Philadelphia, PA
Tesla
20 DCFC
Wawa - Tesla Supercharger
Philadelphia, PA
Tesla
16 DCFC
East Market - Tesla Supercharger
Philadelphia, PA
Tesla
6 DCFC
Cedar Realty Riverview (Philadelphia, PA)
Philadelphia, PA
Electrify America
4 DCFC
Cedar Realty Quartermaster Plaza (Philadelphia, PA)
Station data from NREL Alternative Fuel Stations database.
Driving Electric?
About $25 in charging
· 0 stops
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
71.6
0
$25.04
$11.45
Efficient EV
59.6
0
$20.87
$9.54
EV Truck/SUV
95.4
1
$33.39
$15.26
Gas CO2
83 kg
EV CO2
28 kg (66% less)
Plan for 0 charging stops, roughly every 270 miles. Allow 25-40 minutes per stop at a DC fast charger.
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 19, 2026
Origin
Philadelphia, PA
Afternoon
in Philadelphia on Sunday
Local time
12:09 PM
EDT
Current temp
52°F
Chance Rain Showers
E 5 mph36% chanceLive forecast
Freeze Warning
Freeze Warning issued April 19 at 3:52AM EDT until April 20 at 11:00AM EDT by NWS Cleveland OH
Freeze Watch
Freeze Watch issued April 19 at 1:11AM EDT until April 21 at 9:00AM EDT by NWS Mount Holly NJ
Destination
Somerset, PA
Afternoon
in Somerset on Sunday
Local time
12:09 PM
EDT
Current temp
47°F
Unavailable
Live forecast
48°F
Middlesex, PA
119 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
5 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
4h 29m 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.
Independence National Historical Park
National Historical Park
The park represents the founding ideals of the nation, and preserves national and international symbols of freedom and democracy, including Independence Hall and the Liberty Bell. The Declaration of I...
Visit the house where wounded Polish freedom fighter Thaddeus Kosciuszko lived and hear how this brilliant military engineer designed successful fortifications during the American Revolution. See the...
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...
2 mi from route
~5 min detour
Free
near mile 123.4
Valley Forge is the place where George Washington and the Continental Army took refuge during the winter of 1777-1778. Today the park protects 3,500 acres of meadows, woodlands, historic landscapes, a...
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...
6 mi from route
~16 min detour
Free
near mile 230.3
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...
13 mi from route
~32 min detour
Free
near mile 82.2
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
Expect a highway-focused drive for this trip, with 99% of the route utilizing major highways. The majority of your journey will be spent on the Pennsylvania Turnpike, which accounts for the longest uninterrupted stretch of 217 miles. This means you'll experience a consistent pace for most of the 4 hours and 29 minutes it takes to reach Somerset. The Schuylkill Expressway and Vine Street Expressway will get you started on your way out of Philadelphia before merging onto the main turnpike.
99% highway — fuel and pacing are the main things to plan.
19 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 217 mi on Pennsylvania Turnpike.
How Hard Is This Drive?
9/10
This is a straightforward highway drive that stays mostly on Pennsylvania Turnpike and Schuylkill Expressway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 0.1 miles in near PA 611 / East Penn Square.
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 15 significant decision points across 238.5 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 0.1 miles (PA 611 / East Penn Square): Highway fork - watch signs carefully. Lane positioning matters here; at 18.4 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 18.5 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Philadelphia, PA and Somerset, PA, road signs point toward Chester, Pottstown and Harrisburg.
Doable as a same-day drive at 4h 29m. Total distance: 238.5 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
4h 29m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (99%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 217 miles on Pennsylvania Turnpike. The full list of main roads is in the Roads section above.
Expect about $28.21 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.
We did not find dedicated rest areas on this route. For a drive this long, plan bathroom and stretch breaks around gas stations, fast-food stops, or small-town downtowns — check the Nearby Places section for options.
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 Somerset, 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. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
The main spots that need attention: at 0.1 miles (PA 611 / East Penn Square): Highway fork - watch signs carefully. Lane positioning matters here; at 18.4 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 18.5 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Yes — Independence National Historical Park, Thaddeus Kosciuszko National Memorial and Carlisle Federal Indian Boarding School National Monument (6 total within detour distance). See the National Parks section for detour distances and tips on detours.
Possible but tiring. At 4.5 hours each way, an in-and-out day trip would put you behind the wheel for 9.0 hours — manageable with a long break at Somerset, PA, but most travelers stay overnight.
