How far is Allentown, PA from Decatur, PA?
The driving distance from Allentown, PA to Decatur, PA is about 130.6 miles (210.1 km), with a travel time of about 02h 49m by car.
- The straight-line flight distance is about 103.1 miles (165.9 km).
- For a round trip, plan for roughly 05h 38m 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 49m.
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.
Driving Route Map
The map below follows the saved road route between Allentown and Decatur.
Turn-by-Turn Driving Directions
Step-by-step road directions between Allentown and Decatur.
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1
Start on Tilghman Street
5 mi · 8 min · Tilghman Street
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2
Take the ramp slight left toward US 22 West: Harrisburg
698 ft · 18 sec
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3
Merge slight left onto Lehigh Valley Thruway
1.1 km · 54 sec · Lehigh Valley Thruway
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4
Merge slight left onto William Penn Highway
21.7 mi · 27 min · William Penn Highway
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5
Take the exit slight right toward PA 61 North: Pottsville
869 ft · 25 sec
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6
Keep slight right to continue on PA 61 North: Pottsville
1529 ft · 44 sec
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7
Merge slight left onto Pottsville Pike
2.4 mi · 3 min · Pottsville Pike
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8
Continue on Centre Turnpike
10.6 mi · 13 min · Centre Turnpike
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9
Continue on Route 61 South
3 mi · 4 min · Route 61 South
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10
Continue on Pottsville Boulevard
1434 ft · 18 sec · Pottsville Boulevard
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11
Continue on South Claude A. Lord Boulevard
797 ft · 21 sec · South Claude A. Lord Boulevard
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12
Turn left onto Mauch Chunk Street
563 ft · 11 sec · Mauch Chunk Street
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13
At the end of the road, turn right onto South Centre Street
2134 ft · 39 sec · South Centre Street
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14
Turn left onto West Market Street
2.3 mi · 5 min · West Market Street
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15
Continue on Pottsville Minersville Highway
1.8 mi · 2 min · Pottsville Minersville Highway
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16
At the end of the road, turn left onto East Sunbury Street
1.2 km · 1 min · East Sunbury Street
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17
Continue on Sunbury Road
9.4 mi · 11 min · Sunbury Road
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18
Continue on Fairgrounds Road
2.2 mi · 2 min · Fairgrounds Road
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19
Continue on Locust Gap Highway
1810 ft · 43 sec · Locust Gap Highway
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20
Continue on Locust Gap Highway
11.1 mi · 13 min · Locust Gap Highway
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21
Continue on South Market Street
1.5 mi · 2 min · South Market Street
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22
Turn left onto West Valley Avenue
2.3 mi · 3 min · West Valley Avenue
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23
Turn right
11.4 mi · 13 min
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24
At the end of the road, turn left onto South Front Street
1.2 km · 50 sec · South Front Street
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25
Turn slight left
1.1 km · 1 min
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26
Keep slight left to continue on US 11 South, US 15 South: Selinsgrove, Harrisburg
3076 ft · 2 min
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27
Merge slight left onto North Susquehanna Trail
2.8 mi · 6 min · North Susquehanna Trail
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28
Continue straight
2095 ft · 49 sec
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29
Continue straight
10.5 mi · 12 min
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30
Turn left onto West Market Street
24 mi · 27 min · West Market Street
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31
Turn right onto Alfarata Road
2.1 mi · 5 min · Alfarata Road
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32
At the end of the road, turn right onto Old Stage Road
1.3 km · 2 min · Old Stage Road
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33
Arrive at your destination
0 m · 1 sec · Old Stage Road
Car Route Details
A richer read on the saved driving route between Allentown and Decatur.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
West Market Street
Turn left onto West Market Street
24 mi · 00h 27m
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.
Sunny leaving Allentown and Clear near Decatur.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Allentown to Decatur?
The road trip is about 130.6 miles (210.1 km) and usually takes 02h 49m 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 65.2 miles from Allentown and 65.4 miles from Decatur.
How much longer is the road route than the straight-line distance?
The direct path is about 103.1 miles (165.9 km), while the road route adds roughly 27.5 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 12:52 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $18.84 one way or $37.67 round trip. Estimated CO2 is about 41 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Allentown and Clear near Decatur.
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 Allentown and Decatur. Straight-line distance: 103.1 mi (165.93 km).
#1 Allentown
The third most populous city in Pennsylvania.
| Population | 121,470 |
| Coordinates | 40.6084300, -75.4901800 |
| Altitude | 103 |
| Country | United States |
#2 Decatur
Township in Mifflin County, Pennsylvania
| Population | 3,070 |
| Coordinates | 40.6942400, -77.4538800 |
| Altitude | 207 |
| Country | United States |
End: Decatur (-77.45388, 40.69424)
Estimated Travel Time
Distance: 210 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 20m |
| 40 mph (64.37 km/h) | 03h 15m |
| 50 mph (80.47 km/h) | 02h 36m |
| 60 mph (96.56 km/h) | 02h 10m |
| 70 mph (112.65 km/h) | 01h 51m |
| 80 mph (129 km/h) | 01h 37m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $18.84 | $37.67 |
| Mid-grade | $4.60 | $21.20 | $42.40 |
| Premium | $4.95 | $22.84 | $45.68 |
| Diesel | $5.98 | $27.57 | $55.14 |
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.