South Midway Service Plaza
0 mi from route
Trip from Allentown, PA to Westmont, PA
Pin this tripCompiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Jul 21, 2026 · Editorial standards
Drive Time
4h 27m
Distance
215.2 mi
346 km
Drive Score
9/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$34
one way
EV Charging
Unknown
Best Time to Leave
4 AM
4h 14m
★
6 AM
4h 28m
8 AM
4h 54m
10 AM
4h 37m
12 PM
4h 34m
3 PM
4h 38m
5 PM
4h 53m
8 PM
4h 20m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Allentown, PA
Wikimedia Commons
Westmont, PA
Michael Taccetta
Trip Overview
Allentown, PA to Westmont, PA is 215.2 miles and takes about 4h 27m via Pennsylvania Turnpike, I 81, with a fuel budget near $36 and enough daylight to finish in a day. This trip stays within Pennsylvania, moving from the Northeast region to another part of the Northeast. Expect a mixed drive that's mostly highway, making it a straightforward journey. With a duration under five hours and a single recommended stop, this route is ideal for a day trip or as a segment of a larger adventure.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
107.6 miles from Allentown, PA
A natural place for your longest stop of the day , about 2h 12m into the drive .
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Pennsylvania Turnpike | 81.1 mi | 1h 29m |
| William Penn Highway | 43.1 mi | 51m |
| I 81 | 36.6 mi | 44m |
| Clear Shade Drive | 10.5 mi | 14m |
| Eichler Road | 10.5 mi | 15m |
| 78th Division Highway | 7.6 mi | 8m |
| Tilghman Street | 5 mi | 8m |
| Quaker Valley Road | 3.8 mi | 5m |
Longest stretch:
Pennsylvania Turnpike
— 81.1 mi, about 1h 29m
Traffic on I-81
Hour-of-day weekday pattern from 56 FHWA count stations on your route.
Peak
4 PM
~2,785 veh/hr typical
Quietest
1 AM
~380 veh/hr
Peak-to-quiet ratio
7.3×
busier at peak than in the quiet hours
12a
6a
noon
6p
11p
Averaged across 52 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Allentown, PA and Westmont, PA.
1
Start on Tilghman Street
5.0 mi
·
8 min
·
Tilghman Street
Use the straight lane.
2
Take the ramp
0.1 mi
·
18 sec
Toward US 22 West: Harrisburg
3
Merge onto US 22
0.7 mi
·
54 sec
·
Lehigh Valley Thruway
4
Merge onto I 78; US 22
43 mi
·
51 min
·
William Penn Highway
Use the straight lane.
5
Continue on I 78; US 22
7.6 mi
·
8 min
·
78th Division Highway
6
Keep slight left at fork
0.7 mi
·
49 sec
Exit 1B
Toward I 81 South: Harrisburg
7
Merge onto I 81
37 mi
·
44 min
·
I 81
8
Take the exit
0.3 mi
·
48 sec
Exit 52
Toward US 11: New Kingstown, Middlesex
Use the slight right lane.
9
Keep slight right at fork
201 ft
·
7 sec
Toward US 11 South
Use the right lane.
10
Merge onto US 11
1.0 mi
·
2 min
·
Harrisburg Pike
Use the straight / right lanes.
11
Take the exit
0.5 mi
·
1 min
Toward I 76, PATP
12
Keep slight right at fork
0.2 mi
·
37 sec
Toward I 76 West: Pittsburgh
Use the slight right lane.
13
Merge onto I 76; PATP
81 mi
·
1 hr 29 min
·
Pennsylvania Turnpike
14
Take the exit
0.3 mi
·
46 sec
Toward Altoona, Johnstown
Use the slight right lane.
15
Turn left onto US 220 BUS
0.3 mi
·
42 sec
·
Business 220
16
Take the ramp
0.2 mi
·
27 sec
Toward I 99, US 220: Cumberland, Altoona
17
Keep slight right at fork
0.3 mi
·
36 sec
Toward I 99 North, US 220 North: Altoona
18
Merge onto I 99; US 220
2.4 mi
·
2 min
·
I 99; US 220
19
Take the exit
0.4 mi
·
50 sec
Toward PA 56: Johnstown, Cessna
20
Turn straight onto PA 56
3.8 mi
·
5 min
·
Quaker Valley Road
21
Continue on PA 56
10 mi
·
15 min
·
Eichler Road
22
Continue on PA 56
11 mi
·
14 min
·
Clear Shade Drive
23
Continue on PA 56
3.7 mi
·
6 min
·
Scalp Avenue
24
Enter roundabout onto Scalp Avenue
146 ft
·
2 sec
·
Scalp Avenue
25
Continue on Scalp Avenue
0.1 mi
·
11 sec
·
Scalp Avenue
26
Continue on Bedford Street
2.2 mi
·
4 min
·
Bedford Street
27
Turn left onto Cedar Street
0.3 mi
·
42 sec
·
Cedar Street
28
Turn right onto Horner Street
0.1 mi
·
18 sec
·
Horner Street
29
Turn left onto Hickory Street
0.2 mi
·
18 sec
·
Hickory Street
30
Turn slight right onto PA 403
0.3 mi
·
31 sec
·
Napoleon Street
31
Turn left onto South Street
0.1 mi
·
22 sec
·
South Street
32
Turn left onto PA 271
2.7 mi
·
4 min
·
Menoher Boulevard
33
Turn left onto Elknud Lane
52 ft
·
2 sec
·
Elknud Lane
34
Arrive at destination
Elknud Lane
Trip Plan
Given the 4h 27m drive time, leaving Allentown in the morning allows ample time to reach Westmont before evening. Plan for one stop to break up the drive, perhaps around the halfway point. Keep an eye on your fuel gauge, especially during the 81.1-mile stretch on the Pennsylvania Turnpike, as services can be spaced out. The $36 fuel cost is an estimate, so checking current prices before you depart is a good idea. Since this is a single-day trip, you have the flexibility to depart a little later if needed.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 107.6 miles from Allentown, PA, or about 2h 12m into the drive.
The longest continuous stretch on this route runs about 81.1 miles.
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 47 miles or 58m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 107.6 miles or 2h 12m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 3h 28m
Traffic, exits, and arrival timing usually matter more near Westmont, PA than in the middle of the route.
Before You Leave
+
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 215.2 miles and 4h 27m.
Your first comfortable stop window is around 47 miles from Allentown, PA.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on Pennsylvania Turnpike for about 81.1 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Mid-route town
Meal stop
108 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.
Pacing Suggestions
Fuel and coffee
A short stop after about 47 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 107.6 miles from Allentown, PA, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before Pennsylvania Turnpike if your tank is already low. That segment runs about 81.1 miles.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Stops Along Your Drive
Picked by where they fit in your drive — first break, midpoint reset, final stretch.
North Midway Service Plaza
0 mi from route
Blue Mountain Service Plaza
0 mi from route
Rest Area
0 mi from route
Love's Travel Stop
0.1 mi from route
Petro Stopping Centers
0.1 mi from route
Flying J Travel Center
0.1 mi from route
Sideling Hill Service Plaza
0.1 mi from route
Rest Area
0.1 mi from route
TA
0.2 mi from route
Love's Travel Stop
0.2 mi from route
ONE9 Travel Center
0.2 mi from route
Flying J Travel Center
0.2 mi from route
Flying J Travel Center
0.2 mi from route
Cumberland Valley Service Plaza
0.4 mi from route
Service Plaza
0.4 mi from route
TA
0.6 mi from route
Flying J Travel Center
0.6 mi from route
Sheetz
0.7 mi from route
Allentown Service Plaza
1 mi from route
Love's Travel Stop
1.5 mi from route
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 255 decision points cluster between mile 93.8 and 177.7 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
8
93.8 mi into trip
|
~1h 54m in
Take the exit toward US 11: New Kingstown, Middlesex
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 52
Toward US 11: New Kingstown, Middlesex
8
94.1 mi into trip
|
~1h 55m in
Keep slight right at fork toward US 11 South
Highway fork - watch signs carefully. Lane positioning matters here
Use the right lane.
Toward US 11 South
7
95.6 mi into trip
|
~1h 59m in
Keep slight right at fork toward I 76 West: Pittsburgh
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight right lane.
Toward I 76 West: Pittsburgh
7
176.9 mi into trip
|
~3h 28m in
Take the exit toward Altoona, Johnstown
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Toward Altoona, Johnstown
7
177.7 mi into trip
|
~3h 30m in
Keep slight right at fork toward I 99 North, US 220 North: Altoona
Highway fork - watch signs carefully. Multiple destination signs - pick the right one
Toward I 99 North, US 220 North: Altoona
Fuel & Cost
Regular Gas
$34.31 one way
$68.63 round trip
$4.05/gal
25.4 MPG avg
75 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.48 | $37.97 | $75.95 |
| premium | $4.81 | $40.74 | $81.47 |
| diesel | $4.80 | $40.63 | $81.27 |
Estimated Tolls: $10.59
Pennsylvania Turnpike
(81.1 mi)
$10.54
Lehigh Valley Thruway
(0.7 mi)
$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
$34
Tolls
$11
Meals
$25–$50
Total
$70–$95
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 75.3 kg one way. Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $23 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 64.6 | 0 | $22.60 | $10.33 |
| Efficient EV | 53.8 | 0 | $18.83 | $8.61 |
| EV Truck/SUV | 86.1 | 1 | $30.13 | $13.77 |
Gas CO2
75 kg
EV CO2
25 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.
Travel Intel
Current conditions at both ends of the drive.
Origin
Allentown, PA
Evening in Allentown on Monday
Local time
8:41 PM
EDT
Current temp
83°F
Sunny
E 5 mph
0% chance
Live forecast
Destination
Westmont, PA
Evening in Westmont on Monday
Local time
8:41 PM
EDT
Current temp
61°F
Unavailable
Live forecast
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
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
22 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
4h 27m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Carlisle Federal Indian Boarding School National Monument
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...
1 mi from route
~3 min detour
Free
near mile 96.5
View on nps.gov
Appalachian National Scenic Trail
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...
3 mi from route
~7 min detour
Free
near mile 51.9
View on nps.gov
Johnstown Flood National Memorial
National Memorial
The South Fork Dam failed on Friday, May 31, 1889, and unleashed 20,000,000 tons of water that devastated Johnstown, PA. The flood killed 2,209 people but it brought the nation and the world together...
7 mi from route
~17 min detour
Free
near mile 207.8
View on nps.gov
Flight 93 National Memorial
National Memorial
On Tuesday morning, September 11, 2001, the U.S. came under attack when four commercial airliners were hijacked and used to strike targets on the ground. Nearly 3,000 people tragically lost their live...
12 mi from route
~31 min detour
Free
near mile 200.4
View on nps.gov
Park data from the National Park Service API. Alerts update every 2 hours.
What kind of drive is this?
This route offers a mixed drive experience, with 56% of it being on highways. You'll spend a significant portion of your time on the Pennsylvania Turnpike, including the longest uninterrupted stretch of 81.1 miles. The inclusion of I 81 also contributes to the highway share, suggesting a generally efficient pace for much of the journey. While primarily highway-focused, the remaining percentage indicates some stretches may involve less direct, potentially more varied roads as you approach your destination.
56% highway, the rest on surface roads — varied driving throughout.
34 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 81.1 mi on Pennsylvania Turnpike.
How Hard Is This Drive?
10/10
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 93.8 miles in.
Driving Effort
10/10
High effort - long or complex enough to need steady focus all day
Balances navigation complexity with total wheel time.
This is a demanding drive. With 25 significant decision points across 215.2 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 93.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 94.1 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 95.6 miles: Highway fork - watch signs carefully. Lane positioning matters here.
Elevation Profile
Hilly terrain with moderate elevation changes
2,282 ft
346 ft
Total Climb
3,885 ft
Total Descent
2,479 ft
Highest Point
2,282 ft
~199.8 mi in
Elevation Range
1,935 ft
Notable High Points
1,725 ft at ~123 miles
+773 ft prominence
1,802 ft at ~153.7 miles
+726 ft prominence
2,282 ft at ~199.8 miles
+529 ft prominence
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Allentown, PA and Westmont, PA, road signs point toward Middlesex, Patp, Altoona, Johnstown and Cessna.
Middlesex
93.8 mi in
|
~1h 54m
Patp
95.1 mi in
|
~1h 57m
Altoona
176.9 mi in
|
~3h 28m
Johnstown
176.9 mi in
|
~3h 28m
Cessna
180.3 mi in
|
~3h 33m
About the Cities
Starting in Allentown, PA
Full guide →Founded 1762
Allentown is the largest city in the Lehigh Valley region of eastern Pennsylvania, the county seat and largest city in Lehigh County, and the third-largest city in Pennsylvania after Philadelphia and Pittsburgh with a population of 125,845 as of 2020.
Top landmarks
- • Albertus L. Meyers Bridge — bridge in United States of America
- • Allentown Masonic Temple — masonic temple in Allentown, Pennsylvania
- • Allentown National Bank — bank building in Allentown, Pennsylvania
Arriving in Westmont, PA
Full guide →Founded 1788
Johnstown is a city in Cambria County, Pennsylvania, 41 miles (66 km) west-southwest of Altoona, and 70 miles (110 km) east of Pittsburgh. The Conemaugh River forms at Johnstown from its tributaries, the Stonycreek River and the Little Conemaugh.
City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 4h 27m. Total distance: 215.2 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
4h 27m drive, comfortable solo distance.
Scenic Drive
Mixed highway & surface route profile with national parks nearby.
Frequently Asked Questions
The longest stretch is about 81.1 miles on Pennsylvania Turnpike. The full list of main roads is in the Roads section above.
Expect about $10.59 in tolls one way, starting with Pennsylvania Turnpike. Most Northeast and Midwest toll agencies accept E-ZPass; in the West and Texas, transponders like TxTag or FasTrak apply. If you do not have a transponder, cashless tolling plates will mail a bill to the vehicle's registered address — usually with a surcharge, so a rental-car toll pass is often cheaper than paying by mail.
Yes — we found about 21 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Westmont, PA before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. There are 21 rest areas along the route for bathroom stops.
The main spots that need attention: at 93.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 94.1 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 95.6 miles: Highway fork - watch signs carefully. Lane positioning matters here.
Yes — Carlisle Federal Indian Boarding School National Monument, Appalachian National Scenic Trail and Johnstown Flood National Memorial (4 total within detour distance). See the National Parks section for detour distances and tips on detours.
Possible but tiring. At 4.5 hours each way, an in-and-out day trip would put you behind the wheel for 8.9 hours — manageable with a long break at Westmont, PA, but most travelers stay overnight.
How this page is built
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, USGS 3DEP for elevation, NPS for national parks, and FHWA TMAS for hourly traffic volumes. See our methodology for refresh cadence and limitations.
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