How far is Farmington, PA from Allentown, PA?
The driving distance from Farmington, PA to Allentown, PA is about 267.5 miles (430.5 km), with a travel time of about 04h 26m by car.
- The straight-line flight distance is about 222 miles (357.3 km).
- For a round trip, plan for roughly 08h 53m 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 26m.
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.
Census-designated place in Pennsylvania, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Showers And Thunderstorms
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Farmington and Allentown.
Turn-by-Turn Driving Directions
Step-by-step road directions between Farmington and Allentown.
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1
Start on the route
28 m · 13 sec
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2
Turn left onto National Pike
20.1 mi · 27 min · National Pike
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3
Take the exit slight right
80 m · 8 sec
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4
Merge slight left onto Garrett Highway
1837 ft · 24 sec · Garrett Highway
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5
Take the exit slight right toward I 68 East, US 40 East, US 219 North: Cumberland
1913 ft · 47 sec
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6
Merge slight left onto National Freeway
67.2 mi · 1 hr 15 min · National Freeway
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7
Continue on Dwight D Eisenhower Highway
4.7 mi · 5 min · Dwight D Eisenhower Highway
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8
Continue on I 70, US 40 (Dwight D Eisenhower Highway)
3.3 mi · 4 min · I 70, US 40 (Dwight D Eisenhower Highway)
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9
Continue on Dwight D Eisenhower Highway
16.2 mi · 17 min · Dwight D Eisenhower Highway
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10
Take the exit slight right toward I 81: Roanoke, Harrisburg
629 ft · 15 sec
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11
Keep slight left to continue on I 81 North: Hagerstown, Harrisburg
1346 ft · 33 sec
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12
Keep slight right to continue on I 81 North: Hagerstown, Harrisburg
1678 ft · 54 sec
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13
Keep slight left to continue on I 81 North: Harrisburg
1990 ft · 49 sec
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14
Merge slight left onto Maryland Veterans Memorial Highway
72.3 mi · 1 hr 26 min · Maryland Veterans Memorial Highway
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15
Take the exit slight right toward US 11, US 15: Enola, Marysville
931 ft · 14 sec
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16
Keep slight left to continue on US 11 North, US 15 North: Marysville
1828 ft · 28 sec
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17
Keep slight left
2072 ft · 32 sec
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18
Merge slight left onto George N. Wade Memorial Bridge
1.2 km · 1 min · George N. Wade Memorial Bridge
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19
Continue on American Legion Memorial Highway
3.4 mi · 5 min · American Legion Memorial Highway
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20
Keep slight left to continue on American Legion Memorial Highway
19.1 mi · 23 min · American Legion Memorial Highway
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21
Take the exit slight right toward I 78 East: Allentown
1.1 km · 45 sec
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22
Continue on 78th Division Highway
7.6 mi · 9 min · 78th Division Highway
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23
Continue on William Penn Highway
42.8 mi · 51 min · William Penn Highway
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24
Keep slight right to continue on Lehigh Valley Thruway
1.5 km · 1 min · Lehigh Valley Thruway
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25
Take the exit slight right toward Cetronia
1053 ft · 27 sec
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26
Turn straight onto Tilghman Street
4.9 mi · 8 min · Tilghman Street
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27
Arrive at your destination
0 m · 1 sec · Tilghman Street
Car Route Details
A richer read on the saved driving route between Farmington and Allentown.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Maryland Veterans Memorial Highway
Merge slight left onto Maryland Veterans Memorial Highway
72.3 mi · 01h 26m
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.
Chance Showers And Thunderstorms leaving Farmington and Mostly Sunny near Allentown.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Farmington to Allentown?
The road trip is about 267.5 miles (430.5 km) and usually takes 04h 26m 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?
Marion is a useful midpoint, sitting about 133.3 miles from Farmington and 134.2 miles from Allentown.
How much longer is the road route than the straight-line distance?
The direct path is about 222 miles (357.3 km), while the road route adds roughly 45.5 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 6:00 AM to 8:00 AM EDT. If you want a more comfortable same-day return, try to leave by 8:06 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $38.57 one way or $77.14 round trip. Estimated CO2 is about 83.9 kg one way.
What should you check before leaving?
Before you leave, expect Chance Showers And Thunderstorms around Farmington and Mostly Sunny near Allentown.
Stop Ideas Near Marion
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 Marion.
Hagerstown, MD
Hancock, MD
Martinsburg station
Frederick, MD
Flight Path Map
This map shows the direct air route between Farmington and Allentown. Straight-line distance: 222.03 mi (357.33 km).
#1 Farmington
Census-designated place in southwestern Pennsylvania, USA
| Population | 1,197 |
| Coordinates | 39.8073000, -79.5656000 |
| Altitude | 561 |
| Country | United States |
#2 Allentown
The third most populous city in Pennsylvania.
| Population | 121,470 |
| Coordinates | 40.6084300, -75.4901800 |
| Altitude | 103 |
| Country | United States |
End: Tilghman Street (-75.490007, 40.608068)
Estimated Travel Time
Distance: 431 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 08h 54m |
| 40 mph (64.37 km/h) | 06h 41m |
| 50 mph (80.47 km/h) | 05h 20m |
| 60 mph (96.56 km/h) | 04h 27m |
| 70 mph (112.65 km/h) | 03h 49m |
| 80 mph (129 km/h) | 03h 20m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $38.57 | $77.14 |
| Mid-grade | $4.60 | $43.41 | $86.83 |
| Premium | $4.95 | $46.77 | $93.53 |
| Diesel | $5.98 | $56.45 | $112.90 |
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.