How far is Mount Union, PA from Allentown, PA?
The driving distance from Mount Union, PA to Allentown, PA is about 159.1 miles (256.1 km), with a travel time of about 02h 43m by car.
- The straight-line flight distance is about 126.6 miles (203.8 km).
- For a round trip, plan for roughly 05h 27m 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 43m.
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.
The capital of Pennsylvania.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Rain Showers
Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Mount Union and Allentown.
Turn-by-Turn Driving Directions
Step-by-step road directions between Mount Union and Allentown.
-
1
Start on East Small Street
865 ft · 1 min · East Small Street
-
2
Turn left onto East Shirley Street
1.1 km · 1 min · East Shirley Street
-
3
At the end of the road, turn left onto Croghan Pike
1.3 mi · 2 min · Croghan Pike
-
4
Continue straight
18.5 mi · 28 min
-
5
Take the exit slight right toward US 22 Business
5.8 mi · 11 min
-
6
Merge slight left onto Lewistown Narrows
51.2 mi · 1 hr 3 min · Lewistown Narrows
-
7
Take the exit slight right toward I 81 North, US 322 East, I 81 South: Hershey, Hazleton, Carlisle
968 ft · 21 sec
-
8
Keep slight left to continue on I 81 North, US 322 East: Hershey, Hazleton
1.4 km · 2 min
-
9
Merge slight left onto American Legion Memorial Highway
1.8 mi · 2 min · American Legion Memorial Highway
-
10
Keep slight left to continue on American Legion Memorial Highway
19.1 mi · 23 min · American Legion Memorial Highway
-
11
Take the exit slight right toward I 78 East: Allentown
1.1 km · 45 sec
-
12
Continue on 78th Division Highway
7.6 mi · 9 min · 78th Division Highway
-
13
Continue on William Penn Highway
42.8 mi · 51 min · William Penn Highway
-
14
Keep slight right to continue on Lehigh Valley Thruway
1.5 km · 1 min · Lehigh Valley Thruway
-
15
Take the exit slight right toward Cetronia
1053 ft · 27 sec
-
16
Turn straight onto Tilghman Street
4.9 mi · 8 min · Tilghman Street
-
17
Arrive at your destination
0 m · 1 sec · Tilghman Street
Car Route Details
A richer read on the saved driving route between Mount Union and Allentown.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Lewistown Narrows
Merge slight left onto Lewistown Narrows
51.2 mi · 01h 03m
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 Mount Union and Chance Rain Showers near Allentown.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Mount Union to Allentown?
The road trip is about 159.1 miles (256.1 km) and usually takes 02h 43m 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?
Harrisburg is a useful midpoint, sitting about 78.3 miles from Mount Union and 80.8 miles from Allentown.
How much longer is the road route than the straight-line distance?
The direct path is about 126.6 miles (203.8 km), while the road route adds roughly 32.5 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 1:02 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $22.92 one way or $45.84 round trip. Estimated CO2 is about 49.9 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain Showers around Mount Union and Chance Rain Showers near Allentown.
Stop Ideas Near Harrisburg
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 Harrisburg.
Harrisburg Transportation Center
Middletown
Elizabethtown station
Mount Joy
Flight Path Map
This map shows the direct air route between Mount Union and Allentown. Straight-line distance: 126.63 mi (203.79 km).
#1 Mount Union
City in Henry County, Iowa, United States of America
| Population | 2,396 |
| Coordinates | 40.3845200, -77.8822200 |
| Altitude | 186 |
| 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: 256 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 18m |
| 40 mph (64.37 km/h) | 03h 58m |
| 50 mph (80.47 km/h) | 03h 10m |
| 60 mph (96.56 km/h) | 02h 39m |
| 70 mph (112.65 km/h) | 02h 16m |
| 80 mph (129 km/h) | 01h 59m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $22.92 | $45.84 |
| Mid-grade | $4.60 | $25.80 | $51.60 |
| Premium | $4.95 | $27.79 | $55.58 |
| Diesel | $5.98 | $33.55 | $67.10 |
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 22, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.