How far is Upper Darby, PA from South Union, PA?
The driving distance from Upper Darby, PA to South Union, PA is about 213.1 miles (343 km), with a travel time of about 04h 25m by car.
- The straight-line flight distance is about 144.8 miles (233.1 km).
- For a round trip, plan for roughly 08h 51m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM EDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 04h 25m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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 southern Luzerne County, Pennsylvania
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between Upper Darby and South Union.
Turn-by-Turn Driving Directions
Step-by-step road directions between Upper Darby and South Union.
-
1
Start on West Providence Road
1430 ft · 46 sec · West Providence Road
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2
Turn left onto South Lansdowne Avenue
3 mi · 8 min · South Lansdowne Avenue
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3
Continue on Darby Road
144 m · 14 sec · Darby Road
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4
Turn slight left onto West Chester Pike
2.2 mi · 5 min · West Chester Pike
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5
Take the exit slight right toward I 476 North: Plymouth Meeting
2005 ft · 59 sec
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6
Merge slight left onto Mid-County Expressway
10.6 mi · 14 min · Mid-County Expressway
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7
Turn slight left onto Mid-County Expressway
885 ft · 14 sec · Mid-County Expressway
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8
Continue on Pennsylvania Turnpike Northeast Extension
75 mi · 1 hr 21 min · Pennsylvania Turnpike Northeast Extension
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9
Take the exit slight right toward PA 940, I 80: Hazleton, Mount Pocono
1.1 km · 2 min
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10
Keep slight left
879 ft · 24 sec
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11
Keep slight right to continue on I 80 West: Hazleton
1650 ft · 40 sec
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12
Merge slight left onto Keystone Shortway
65.8 mi · 1 hr 13 min · Keystone Shortway
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13
Take the exit slight right toward US 15: Lewisburg, Williamsport
1568 ft · 38 sec
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14
Keep slight right to continue on US 15 North: Williamsport
1888 ft · 41 sec
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15
Merge slight left onto Westbranch Highway
2.6 mi · 4 min · Westbranch Highway
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16
Continue on US Highway 15
11.7 mi · 17 min · US Highway 15
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17
Continue on Montgomery Pike
1.1 mi · 2 min · Montgomery Pike
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18
Continue on Hastings Street
3122 ft · 1 min · Hastings Street
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19
Continue on Market Street
2304 ft · 59 sec · Market Street
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20
Take the exit left
1304 ft · 32 sec
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21
Merge slight left onto Susquehanna Beltway
1.6 mi · 2 min · Susquehanna Beltway
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22
Keep slight right to continue on US 15 North: Mansfield
27.3 mi · 31 min
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23
Take the exit slight right toward PA 414: Morris, Liberty
1510 ft · 32 sec
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24
Turn right onto Route 414
3052 ft · 1 min · Route 414
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25
Turn left onto Blockhouse Road
1901 ft · 38 sec · Blockhouse Road
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26
Turn right onto Water Street
4.3 mi · 8 min · Water Street
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27
Turn right onto Salt Spring Road
1.5 mi · 6 min · Salt Spring Road
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28
Turn left onto Beck Road
1.5 km · 4 min · Beck Road
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29
Turn left onto South Union Road
25 m · 4 sec · South Union Road
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30
Arrive at your destination
0 m · 1 sec · South Union Road
Car Route Details
A richer read on the saved driving route between Upper Darby and South Union.
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
Continue on Pennsylvania Turnpike Northeast Extension
75 mi · 01h 21m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Sunny leaving Upper Darby and Sunny near South Union.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Upper Darby to South Union?
The road trip is about 213.1 miles (343 km) and usually takes 04h 25m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Freeland is a useful midpoint, sitting about 106.5 miles from Upper Darby and 106.6 miles from South Union.
How much longer is the road route than the straight-line distance?
The direct path is about 144.8 miles (233.1 km), while the road route adds roughly 68.3 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 6:00 AM to 8:00 AM EDT. If you want a more comfortable same-day return, try to leave by 8:08 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $30.73 one way or $61.45 round trip. Estimated CO2 is about 66.8 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Upper Darby and Sunny near South Union.
Stop Ideas Near Freeland
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 Freeland.
White Haven, PA
Wilkes-Barre, PA
Scranton, PA
Exton
Flight Path Map
This map shows the direct air route between Upper Darby and South Union. Straight-line distance: 144.87 mi (233.14 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 South Union
Township in Fayette County, Pennsylvania
| Population | 10,106 |
| Coordinates | 41.5681300, -76.9988600 |
| Altitude | 552 |
| Country | United States |
End: South Union (-76.99886, 41.56813)
Estimated Travel Time
Distance: 343 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 06m |
| 40 mph (64.37 km/h) | 05h 19m |
| 50 mph (80.47 km/h) | 04h 15m |
| 60 mph (96.56 km/h) | 03h 33m |
| 70 mph (112.65 km/h) | 03h 02m |
| 80 mph (129 km/h) | 02h 39m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $30.73 | $61.45 |
| Mid-grade | $4.60 | $34.58 | $69.17 |
| Premium | $4.95 | $37.25 | $74.51 |
| Diesel | $5.98 | $44.97 | $89.94 |
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 · May 31, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.