How far is Harrisburg, PA from South Williamsport, PA?
The driving distance from Harrisburg, PA to South Williamsport, PA is about 84.9 miles (136.7 km), with a travel time of about 02h 02m by car.
- The straight-line flight distance is about 66.5 miles (107 km).
- For a round trip, plan for roughly 04h 04m 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 02m.
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 southwestern Northumberland County, Pennsylvania, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Rain Showers
Rain Showers then Mostly Cloudy
Driving Route Map
The map below follows the saved road route between Harrisburg and South Williamsport.
Turn-by-Turn Driving Directions
Step-by-step road directions between Harrisburg and South Williamsport.
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1
Start on North 7th Street
27 m · 3 sec · North 7th Street
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2
Enter the roundabout and take exit 1 toward North 7th Street
25 m · 3 sec · North 7th Street
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3
Exit the roundabout onto North 7th Street
2757 ft · 2 min · North 7th Street
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4
Turn right onto Maclay Street
2176 ft · 55 sec · Maclay Street
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5
Turn left onto North Cameron Street
14.3 mi · 21 min · North Cameron Street
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6
Take the exit slight right toward US 11 North, US 15 North: Selinsgrove, Williamsport
1.1 km · 1 min
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7
Merge slight left onto Susquehanna Trail
28.4 mi · 39 min · Susquehanna Trail
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8
Continue on Selinsgrove Bypass
10.3 mi · 17 min · Selinsgrove Bypass
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9
Take the exit slight right
2251 ft · 55 sec
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10
Merge slight left onto Central Susquehanna Valley Thruway
11.4 mi · 13 min · Central Susquehanna Valley Thruway
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11
Take the exit slight right toward I 80 West: Bellefonte
1891 ft · 56 sec
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12
Keep slight left
2243 ft · 27 sec
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13
Merge slight left onto Keystone Shortway
1.1 km · 44 sec · Keystone Shortway
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14
Take the exit slight right toward US 15: Lewisburg, Williamsport
1568 ft · 38 sec
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15
Keep slight right to continue on US 15 North: Williamsport
1888 ft · 41 sec
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16
Merge slight left onto Westbranch Highway
2.6 mi · 4 min · Westbranch Highway
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17
Continue on US Highway 15
11.7 mi · 17 min · US Highway 15
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18
Continue on Montgomery Pike
1.1 mi · 2 min · Montgomery Pike
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19
Continue on Hastings Street
3122 ft · 1 min · Hastings Street
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20
Turn left onto East Southern Avenue
1663 ft · 43 sec · East Southern Avenue
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21
Arrive at your destination
0 m · 1 sec · West Southern Avenue
Car Route Details
A richer read on the saved driving route between Harrisburg and South Williamsport.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Susquehanna Trail
Merge slight left onto Susquehanna Trail
28.4 mi · 00h 39m
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.
Chance Rain Showers leaving Harrisburg and Rain Showers then Mostly Cloudy near South Williamsport.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Harrisburg to South Williamsport?
The road trip is about 84.9 miles (136.7 km) and usually takes 02h 02m 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?
Herndon is a useful midpoint, sitting about 42.5 miles from Harrisburg and 42.4 miles from South Williamsport.
How much longer is the road route than the straight-line distance?
The direct path is about 66.5 miles (107 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 2:26 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $12.26 one way or $24.52 round trip. Estimated CO2 is about 26.7 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain Showers around Harrisburg and Rain Showers then Mostly Cloudy near South Williamsport.
Stop Ideas Near Herndon
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 Herndon.
Harrisburg Transportation Center
Middletown
Lewistown
Elizabethtown station
Flight Path Map
This map shows the direct air route between Harrisburg and South Williamsport. Straight-line distance: 66.49 mi (107 km).
#1 Harrisburg
The capital of Pennsylvania.
| Population | 49,322 |
| Coordinates | 40.2737000, -76.8844200 |
| Altitude | 101 |
| Country | United States |
#2 South Williamsport
Borough in Lycoming County, Pennsylvania
| Population | 6,064 |
| Coordinates | 41.2320200, -76.9991300 |
| Altitude | 159 |
| Country | United States |
End: South Williamsport (-76.99913, 41.23202)
Estimated Travel Time
Distance: 137 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 49m |
| 40 mph (64.37 km/h) | 02h 07m |
| 50 mph (80.47 km/h) | 01h 41m |
| 60 mph (96.56 km/h) | 01h 24m |
| 70 mph (112.65 km/h) | 01h 12m |
| 80 mph (129 km/h) | 01h 03m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $12.26 | $24.52 |
| Mid-grade | $4.60 | $13.80 | $27.59 |
| Premium | $4.95 | $14.86 | $29.72 |
| Diesel | $5.98 | $17.94 | $35.88 |
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.