Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 21, 2026 · Editorial standards
Drive Time
2h 32m
Distance
121.4 mi
195 km
Drive Score
9/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$20
one way
EV Charging
Unknown
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Allentown, PA
Wikimedia Commons
Mifflin, PA
Haneul Trac
Allentown, PA to Mifflin, PA is 121.4 miles and takes about 2h 32m via William Penn Highway and US 322, with a fuel budget near $20 and enough daylight to finish in a day. This drive stays within Pennsylvania, traversing the Northeast region. It offers a mixed driving experience, ideal for a single-day trip. Expect a straightforward journey with about half of your travel on highways. This route is a practical choice for getting from point A to point B efficiently.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
1 planned break
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
60.7 miles from Allentown, PA
A natural place for your longest stop of the day , about 1h 14m into the drive .
| Road | Distance | Duration |
|---|---|---|
| William Penn Highway | 45.1 mi | 55m |
| US 322 | 39.7 mi | 49m |
| I 81 | 20.8 mi | 25m |
| 78th Division Highway | 7.6 mi | 8m |
| Tilghman Street | 5 mi | 8m |
| Industrial Park Road | 0.7 mi | 1m |
| Lehigh Valley Thruway | 0.7 mi | <1m |
| Wilson Street | 0.4 mi | <1m |
Step-by-step road directions between Allentown, PA and Mifflin, PA.
Start on Tilghman Street
Take the ramp
Merge onto US 22
Merge onto I 78; US 22
Continue on I 78; US 22
Keep slight left at fork
Merge onto I 81
Take the exit onto US 322
Keep slight right at fork onto US 322
Take the exit
Keep slight right at fork
Turn straight onto PA 75
Turn right onto SR 3002
Enter roundabout onto PA 35
Continue on PA 35
Turn right onto Parker Street
Turn left onto Juniata Street
Turn left onto Main Street
Arrive at destination
With a duration of just over 2.5 hours, this is a flexible one-day trip, so you can leave whenever is most convenient. There's only one recommended stop, but you can easily adjust this based on your needs. Keep an eye on your fuel, as the estimated cost is around $20, and the longest stretch without a significant road change is over 45 miles. It's wise to fuel up before leaving Allentown or upon reaching a substantial town along US 322 to ensure a smooth continuation.
Morning Departure
Leave by 9 AM and you'll arrive before lunch.
Evening Departure
Even a 4 PM departure gets you there before dark in summer.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 27 miles or 34m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 60.7 miles or 1h 14m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 2h 2m
Traffic, exits, and arrival timing usually matter more near Mifflin, PA than in the middle of the route.
Open the route before leaving Allentown, PA so your first major turns are already loaded.
Leave with enough water and a charging cable within reach, not packed away.
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Allentown, PA
This is one driving day of about 121.4 miles and 2h 32m.
Rest stops, refuel points, and overnight suggestions along this route.
Mid-route town
Meal stop
61 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
A short stop after about 27 miles helps settle the day before fatigue starts building.
The midpoint is around 60.7 miles from Allentown, PA, which is a good place for a longer meal and fuel stop.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
5 decision points cluster between mile 56.5 and 118 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
Keep slight left at fork toward I 81 South: Harrisburg
Highway fork - watch signs carefully
Take the exit onto US 322 toward US 22 East, PA 230 East, US 22 West, US 322 West: Harrisburg, Lewistown, State College
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Keep slight right at fork onto US 322 toward US 22 West, US 322 West: Lewistown, State College
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Take the exit toward PA 75: Port Royal
Exit ramp - move to the correct lane early. Lane positioning matters here
Keep slight right at fork toward PA 75 South: Port Royal
Highway fork - watch signs carefully
Regular Gas
$20.13 one way
$40.25 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.61 | $22.04 | $44.09 |
| premium | $4.93 | $23.54 | $47.09 |
| diesel | $5.61 | $26.80 | $53.61 |
Estimated Tolls: $0.05
Toll estimates based on average 2024-2025 rates. EZ-Pass/SunPass discounts may lower the actual cost.
Estimated Trip Cost (one way, 1 person)
Fuel
$20
Tolls
$0
Meals
$25–$50
Total
$45–$70
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 42.5 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $13 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 36.4 | 0 | $12.75 | $5.83 |
| Efficient EV | 30.4 | 0 | $10.62 | $4.86 |
| EV Truck/SUV | 48.6 | 0 | $17.00 | $7.77 |
Gas CO2
42 kg
EV CO2
14 kg (67% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Current conditions at both ends of the drive.
Origin
Late night in Allentown on Tuesday
Local time
5:25 AM
EDT
Current temp
88°F
Mostly Sunny
Destination
Late night in Mifflin on Tuesday
Local time
5:25 AM
EDT
Current temp
70°F
Unavailable
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Worth a detour if your schedule allows.
National Scenic Trail
The Appalachian Trail is a 2,190+ mile long public footpath that traverses the scenic, wooded, pastoral, wild, and culturally resonant lands of the Appalachian Mountains. Conceived in 1921, built by p...
National Monument
More than 7,800 children from 140 Tribes went to the Carlisle School from 1879 to 1918. The National Park Service will collaborate with families, affiliated Tribal Nations, the US Army, historians, an...
Park data from the National Park Service API. Alerts update every 2 hours.
This drive features a mixed profile, with 50% of the journey on highways. You'll experience stretches on the William Penn Highway, including the longest uninterrupted segment of 45.1 miles, before transitioning to US 322 and I 81. The route is not a constant interstate grind; expect a blend of faster highway driving and potentially more local road sections. This variation means you'll get a feel for different types of Pennsylvania roadways on your way to Mifflin.
This route mixes highway mileage with some local-road sections near the start or finish. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 56.5 miles in.
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 15 significant decision points across 121.4 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 56.5 miles: Highway fork - watch signs carefully; at 78.1 miles (US 322): Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 78.3 miles (US 322): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Allentown, PA and Mifflin, PA, road signs point toward Lewistown and State College.
Lewistown
State College
Weekend Trip
Doable as a same-day drive at 2h 32m. Total distance: 121.4 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
2h 32m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (50%). Some complex stretches to watch for.
Scenic Drive
Mixed highway & surface route profile with national parks nearby.
Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, and NPS for national parks. See our methodology for refresh cadence and limitations.
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