How far is Thornhurst, PA from Philadelphia, PA?
The driving distance from Thornhurst, PA to Philadelphia, PA is about 105.9 miles (170.5 km), with a travel time of about 01h 57m by car.
- The straight-line flight distance is about 87.5 miles (140.8 km).
- For a round trip, plan for roughly 03h 55m 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 01h 57m.
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.
Borough in Lehigh County, Pennsylvania
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers Likely
Showers And Thunderstorms Likely
Driving Route Map
The map below follows the saved road route between Thornhurst and Philadelphia.
Turn-by-Turn Driving Directions
Step-by-step road directions between Thornhurst and Philadelphia.
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1
Start on River Road
2 mi · 4 min · River Road
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2
Continue on Buck River Road
3 mi · 5 min · Buck River Road
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3
At the end of the road, turn left onto Buck Boulevard
7.8 mi · 12 min · Buck Boulevard
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4
Turn right
7.2 mi · 11 min
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5
Take the ramp left toward PATP South, I 476 South: Allentown
1499 ft · 37 sec
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6
Merge slight left onto Pennsylvania Turnpike Northeast Extension
66.8 mi · 1 hr 12 min · Pennsylvania Turnpike Northeast Extension
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7
Continue on Pennsylvania Turnpike Northeast Extension
1558 ft · 24 sec · Pennsylvania Turnpike Northeast Extension
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8
Keep slight left to continue on Pennsylvania Turnpike Northeast Extension
1179 ft · 18 sec · Pennsylvania Turnpike Northeast Extension
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9
Continue on Mid-County Expressway
3.4 mi · 5 min · Mid-County Expressway
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10
Take the exit slight right toward I 76 East, I 76 West: Philadelphia, Valley Forge
1758 ft · 43 sec
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11
Keep slight left to continue on I 76 East: Philadelphia
1722 ft · 42 sec
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12
Merge slight right onto Schuylkill Expressway
12.6 mi · 18 min · Schuylkill Expressway
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13
Keep slight left to continue on Vine Street Expressway
1.3 km · 1 min · Vine Street Expressway
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14
Take the exit slight right toward Central Philadelphia
731 ft · 18 sec
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15
Keep slight right to continue on 15th Street, Central Philadelphia
96 m · 11 sec
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16
Turn right onto North 15th Street
1987 ft · 49 sec · North 15th Street
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17
Turn slight left onto South Penn Square
115 m · 9 sec · South Penn Square
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18
Keep slight left to continue on South Penn Square
51 m · 3 sec · South Penn Square
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19
Arrive at your destination
0 m · 1 sec · South Penn Square
Car Route Details
A richer read on the saved driving route between Thornhurst 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 Northeast Extension
Merge slight left onto Pennsylvania Turnpike Northeast Extension
66.8 mi · 01h 12m
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.
Rain Showers Likely leaving Thornhurst and Showers And Thunderstorms Likely near Philadelphia.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Thornhurst to Philadelphia?
The road trip is about 105.9 miles (170.5 km) and usually takes 01h 57m 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?
Emmaus is a useful midpoint, sitting about 52.9 miles from Thornhurst and 53.1 miles from Philadelphia.
How much longer is the road route than the straight-line distance?
The direct path is about 87.5 miles (140.8 km), while the road route adds roughly 18.4 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 2:34 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $15.28 one way or $30.56 round trip. Estimated CO2 is about 33.2 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers Likely around Thornhurst and Showers And Thunderstorms Likely near Philadelphia.
Stop Ideas Near Emmaus
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 Emmaus.
Paoli
Exton
Downingtown
White Haven, PA
Flight Path Map
This map shows the direct air route between Thornhurst and Philadelphia. Straight-line distance: 87.49 mi (140.8 km).
#1 Thornhurst
Township in Pennsylvania, United States
| Population | 1,026 |
| Coordinates | 41.1784200, -75.5804700 |
| Altitude | 471 |
| 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: 171 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 31m |
| 40 mph (64.37 km/h) | 02h 38m |
| 50 mph (80.47 km/h) | 02h 07m |
| 60 mph (96.56 km/h) | 01h 45m |
| 70 mph (112.65 km/h) | 01h 30m |
| 80 mph (129 km/h) | 01h 19m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $15.28 | $30.56 |
| Mid-grade | $4.60 | $17.20 | $34.40 |
| Premium | $4.95 | $18.53 | $37.06 |
| Diesel | $5.98 | $22.37 | $44.73 |
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 · Apr 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.