How far is Williamstown, PA from Philadelphia, PA?
The driving distance from Williamstown, PA to Philadelphia, PA is about 115.7 miles (186.2 km), with a travel time of about 02h 23m by car.
- The straight-line flight distance is about 88 miles (141.7 km).
- For a round trip, plan for roughly 04h 46m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM EDT.
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 23m.
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.
Partly Cloudy
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Williamstown and Philadelphia.
Turn-by-Turn Driving Directions
Step-by-step road directions between Williamstown and Philadelphia.
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1
Start on East Market Street
885 ft · 41 sec · East Market Street
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2
Turn right onto South Railroad Street
1452 ft · 1 min · South Railroad Street
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3
Turn left
9.8 mi · 15 min
-
4
Take the ramp slight right
1767 ft · 43 sec
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5
Merge slight left
2.2 mi · 3 min
-
6
Take the exit slight right toward PA 125: Ravine
1138 ft · 30 sec
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7
Turn right onto Molleystown Road
2889 ft · 51 sec · Molleystown Road
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8
At the end of the road, turn right onto South Tremont Road
2.3 mi · 4 min · South Tremont Road
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9
Continue on North Tulpehocken Street
1.3 mi · 3 min · North Tulpehocken Street
-
10
Turn left onto East Wood Street
1094 ft · 18 sec · East Wood Street
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11
Continue on Rock Road
2108 ft · 1 min · Rock Road
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12
Turn right onto Bethel Road
2.9 mi · 4 min · Bethel Road
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13
Continue on Lancaster Avenue
4.8 mi · 7 min · Lancaster Avenue
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14
Take the exit left toward I 78 East, US 22 East: Allentown
1126 ft · 28 sec
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15
Merge slight left onto William Penn Highway
5.6 mi · 7 min · William Penn Highway
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16
Take the exit slight right toward PA 183: Strausstown
836 ft · 23 sec
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17
Turn right
14.4 mi · 23 min
-
18
Take the ramp slight right toward US 222 South: Lancaster
2149 ft · 52 sec
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19
Merge slight left
2.8 mi · 4 min
-
20
Continue on West Shore Bypass
4.8 mi · 6 min · West Shore Bypass
-
21
Take the exit slight right toward I 176 South: Morgantown
2135 ft · 46 sec
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22
Continue on Morgantown Expressway
11.4 mi · 13 min · Morgantown Expressway
-
23
Keep slight left to continue on I 76 Toll East: Philadelphia
2094 ft · 51 sec
-
24
Merge slight left onto Pennsylvania Turnpike
27.5 mi · 29 min · Pennsylvania Turnpike
-
25
Take the exit slight right toward I 76 East: Valley Forge, Philadelphia
18 mi · 26 min
-
26
Keep slight left to continue on Vine Street Expressway
1.3 km · 1 min · Vine Street Expressway
-
27
Take the exit slight right toward Central Philadelphia
731 ft · 18 sec
-
28
Keep slight right to continue on 15th Street, Central Philadelphia
96 m · 11 sec
-
29
Turn right onto North 15th Street
1987 ft · 49 sec · North 15th Street
-
30
Turn slight left onto South Penn Square
115 m · 9 sec · South Penn Square
-
31
Keep slight left to continue on South Penn Square
51 m · 3 sec · South Penn Square
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32
Arrive at your destination
0 m · 1 sec · South Penn Square
Car Route Details
A richer read on the saved driving route between Williamstown and Philadelphia.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Pennsylvania Turnpike
Merge slight left onto Pennsylvania Turnpike
27.5 mi · 00h 29m
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.
Partly Cloudy leaving Williamstown and Mostly Sunny near Philadelphia.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Williamstown to Philadelphia?
The road trip is about 115.7 miles (186.2 km) and usually takes 02h 23m 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?
Flying Hills is a useful midpoint, sitting about 56.3 miles from Williamstown and 59.3 miles from Philadelphia.
How much longer is the road route than the straight-line distance?
The direct path is about 88 miles (141.7 km), while the road route adds roughly 27.7 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 EDT. If you want a more comfortable same-day return, try to leave by 1:44 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $18.21 one way or $36.43 round trip. Estimated CO2 is about 36.3 kg one way.
What should you check before leaving?
Before you leave, expect Partly Cloudy around Williamstown and Mostly Sunny near Philadelphia.
Stop Ideas Near Flying Hills
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 Flying Hills.
Coatesville
Downingtown
Parkesburg
Exton
Flight Path Map
This map shows the direct air route between Williamstown and Philadelphia. Straight-line distance: 88.07 mi (141.74 km).
#1 Williamstown
Situated in the eastern part of Dauphin County, Pennsylvania, at an elevation of approximately 732 feet above sea level, this borough sits within the Ridge and Valley Appalachian province.
| Population | 0 |
| Coordinates | 40.5800900, -76.6177400 |
| Altitude | 223 |
| Country | United States |
#2 Philadelphia
The sixth most populous city in the United States and the center of the Philadelphia metropolitan area.
| Population | 1,578,487 |
| Coordinates | 39.9523300, -75.1637900 |
| Altitude | 12 |
| Country | United States |
End: South Penn Square (-75.163922, 39.951648)
Estimated Travel Time
Distance: 186 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 51m |
| 40 mph (64.37 km/h) | 02h 53m |
| 50 mph (80.47 km/h) | 02h 18m |
| 60 mph (96.56 km/h) | 01h 55m |
| 70 mph (112.65 km/h) | 01h 39m |
| 80 mph (129 km/h) | 01h 26m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.46 | $18.21 | $36.43 |
| Mid-grade | $4.93 | $20.09 | $40.19 |
| Premium | $5.31 | $21.64 | $43.29 |
| Diesel | $6.55 | $26.72 | $53.45 |
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 · Oct 15, 2026