How far is Upper Darby, PA from Radnor, PA?
The driving distance from Upper Darby, PA to Radnor, PA is about 11.4 miles (18.3 km), with a travel time of about 00h 24m by car.
- The straight-line flight distance is about 9.3 miles (15 km).
- For a round trip, plan for roughly 00h 48m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM EDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 24m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
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.
Township of Pennsylvania
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Clear
Driving Route Map
The map below follows the saved road route between Upper Darby and Radnor.
Turn-by-Turn Driving Directions
Step-by-step road directions between Upper Darby and Radnor.
-
1
Start on West Providence Road
1430 ft · 46 sec · West Providence Road
-
2
Turn left onto South Lansdowne Avenue
3 mi · 8 min · South Lansdowne Avenue
-
3
Continue on Darby Road
144 m · 14 sec · Darby Road
-
4
Turn slight left onto West Chester Pike
2.2 mi · 5 min · West Chester Pike
-
5
Take the exit slight right toward I 476 North: Plymouth Meeting
2005 ft · 59 sec
-
6
Merge slight left onto Mid-County Expressway
3.9 mi · 5 min · Mid-County Expressway
-
7
Take the exit slight right toward US 30: Saint Davids, Villanova
1828 ft · 47 sec
-
8
Continue on King of Prussia Road
1.2 km · 2 min · King of Prussia Road
-
9
Turn right onto Matsonford Road
1124 ft · 33 sec · Matsonford Road
-
10
Turn right onto Archbishop Carroll Driveway
63 m · 17 sec · Archbishop Carroll Driveway
-
11
Turn right
153 m · 37 sec
-
12
Turn right
92 m · 22 sec
-
13
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Upper Darby and Radnor.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
Mid-County Expressway
Merge slight left onto Mid-County Expressway
3.86 mi · 00h 05m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Mostly Clear leaving Upper Darby and Sunny near Radnor.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Upper Darby to Radnor?
The road trip is about 11.4 miles (18.3 km) and usually takes 00h 24m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Lawrence Park is a useful midpoint, sitting about 5.7 miles from Upper Darby and 5.7 miles from Radnor.
How much longer is the road route than the straight-line distance?
The direct path is about 9.3 miles (15 km), while the road route adds roughly 2.1 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 7:00 AM to 7:00 PM EDT. If you want a more comfortable same-day return, try to leave by 7:42 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $1.63 one way or $3.27 round trip. Estimated CO2 is about 3.6 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Clear around Upper Darby and Sunny near Radnor.
Stop Ideas Near Lawrence Park
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Bluestone Lane City Hall Coffee Shop
Dilworth Park
Philadelphia Marriage License
City Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Lawrence Park.
Ardmore
30th Street Station
Paoli
North Philadelphia station
Flight Path Map
This map shows the direct air route between Upper Darby and Radnor. Straight-line distance: 9.33 mi (15.01 km).
#1 Upper Darby
Town in Delaware County, Pennsylvania, United States
| Population | 82,883 |
| Coordinates | 39.9284500, -75.2738000 |
| Altitude | 20 |
| Country | United States |
#2 Radnor
Unincorporated community in Radnor Township, Pennsylvania, United States
| Population | 31,902 |
| Coordinates | 40.0462200, -75.3599100 |
| Altitude | 132 |
| Country | United States |
End: Radnor (-75.35991, 40.04622)
Estimated Travel Time
Distance: 18 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 22m |
| 40 mph (64.37 km/h) | 00h 17m |
| 50 mph (80.47 km/h) | 00h 13m |
| 60 mph (96.56 km/h) | 00h 11m |
| 70 mph (112.65 km/h) | 00h 09m |
| 80 mph (129 km/h) | 00h 08m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $1.63 | $3.27 |
| Mid-grade | $4.60 | $1.84 | $3.68 |
| Premium | $4.95 | $1.98 | $3.96 |
| Diesel | $5.98 | $2.39 | $4.78 |
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 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.