How far is Reading, PA from South Williamsport, PA?
The driving distance from Reading, PA to South Williamsport, PA is about 106.1 miles (170.7 km), with a travel time of about 02h 16m by car.
- The straight-line flight distance is about 83.6 miles (134.5 km).
- For a round trip, plan for roughly 04h 33m 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 16m.
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 in Northumberland County, Pennsylvania
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Partly Sunny
Driving Route Map
The map below follows the saved road route between Reading and South Williamsport.
Turn-by-Turn Driving Directions
Step-by-step road directions between Reading and South Williamsport.
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1
Start on Penn Street
85 m · 9 sec · Penn Street
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2
Turn right onto North 5th Street
2689 ft · 56 sec · North 5th Street
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3
Turn slight left onto Centre Avenue
3 mi · 5 min · Centre Avenue
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4
Continue on Pottsville Pike
4.7 mi · 6 min · Pottsville Pike
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5
Continue on South Centre Avenue
1.6 km · 1 min · South Centre Avenue
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6
Continue on Pottsville Pike
3.2 mi · 4 min · Pottsville Pike
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7
Continue on Shoemaker Avenue
3219 ft · 44 sec · Shoemaker Avenue
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8
Continue on Pottsville Pike
2.3 mi · 3 min · Pottsville Pike
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9
Continue on South 4th Street
1321 ft · 19 sec · South 4th Street
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10
Continue on Pottsville Pike
4.2 mi · 6 min · Pottsville Pike
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11
Continue on Centre Turnpike
10.6 mi · 13 min · Centre Turnpike
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12
Continue on Route 61 South
3 mi · 4 min · Route 61 South
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13
Continue on Pottsville Boulevard
1434 ft · 18 sec · Pottsville Boulevard
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14
Continue on South Claude A. Lord Boulevard
797 ft · 21 sec · South Claude A. Lord Boulevard
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15
Turn left onto Mauch Chunk Street
563 ft · 11 sec · Mauch Chunk Street
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16
At the end of the road, turn right onto South Centre Street
2134 ft · 39 sec · South Centre Street
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17
Turn left onto West Market Street
2.3 mi · 5 min · West Market Street
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18
Continue on Pottsville Minersville Highway
1.8 mi · 2 min · Pottsville Minersville Highway
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19
At the end of the road, turn left onto East Sunbury Street
1.2 km · 1 min · East Sunbury Street
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20
Continue on Sunbury Road
9.4 mi · 11 min · Sunbury Road
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21
Continue on Fairgrounds Road
2.2 mi · 2 min · Fairgrounds Road
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22
Continue on Locust Gap Highway
1810 ft · 43 sec · Locust Gap Highway
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23
Continue on Locust Gap Highway
11.1 mi · 13 min · Locust Gap Highway
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24
Continue on South Market Street
9.7 mi · 11 min · South Market Street
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25
Turn right onto Danville-Riverside Bridge Road
1799 ft · 46 sec · Danville-Riverside Bridge Road
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26
Continue on Factory Street
716 ft · 20 sec · Factory Street
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27
Continue on Continental Boulevard
3 mi · 4 min · Continental Boulevard
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28
Take the exit slight right
2146 ft · 52 sec
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29
Merge slight left onto Keystone Shortway
13.2 mi · 14 min · Keystone Shortway
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30
Take the exit slight right toward US 15: Lewisburg, Williamsport
1568 ft · 38 sec
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31
Keep slight right to continue on US 15 North: Williamsport
1888 ft · 41 sec
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32
Merge slight left onto Westbranch Highway
2.6 mi · 4 min · Westbranch Highway
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33
Continue on US Highway 15
11.7 mi · 17 min · US Highway 15
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34
Continue on Montgomery Pike
1.1 mi · 2 min · Montgomery Pike
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35
Continue on Hastings Street
3122 ft · 1 min · Hastings Street
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36
Turn left onto East Southern Avenue
1663 ft · 43 sec · East Southern Avenue
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37
Arrive at your destination
0 m · 1 sec · West Southern Avenue
Car Route Details
A richer read on the saved driving route between Reading and South Williamsport.
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.
Keystone Shortway
Merge slight left onto Keystone Shortway
13.2 mi · 00h 14m
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.
Mostly Sunny leaving Reading and Partly Sunny near South Williamsport.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Reading to South Williamsport?
The road trip is about 106.1 miles (170.7 km) and usually takes 02h 16m 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?
Atlas is a useful midpoint, sitting about 53 miles from Reading and 53.1 miles from South Williamsport.
How much longer is the road route than the straight-line distance?
The direct path is about 83.6 miles (134.5 km), while the road route adds roughly 22.5 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 1:56 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 Mostly Sunny around Reading and Partly Sunny near South Williamsport.
Stop Ideas Near Atlas
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 Atlas.
Wilkes-Barre, PA
White Haven, PA
Harrisburg Transportation Center
Middletown
Flight Path Map
This map shows the direct air route between Reading and South Williamsport. Straight-line distance: 83.56 mi (134.48 km).
#1 Reading
The fourth most populous city in Pennsylvania.
| Population | 88,217 |
| Coordinates | 40.3356500, -75.9268700 |
| Altitude | 93 |
| 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: 171 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 32m |
| 40 mph (64.37 km/h) | 02h 39m |
| 50 mph (80.47 km/h) | 02h 07m |
| 60 mph (96.56 km/h) | 01h 46m |
| 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.