Buffalo, PA to Allentown, PA is 296.6 miles and takes about 5h 58m via Pennsylvania Turnpike and Dwight D Eisenhower Highway, with a fuel budget near $50 and enough daylight to finish in a day. This trip stays within Pennsylvania, connecting the Northeast region of the state to itself. The route offers a mixed driving experience, balancing highway cruising with surface roads. Given the 6-hour duration and single recommended stop, this trip is very manageable as a single-day drive, especially if you depart in the morning.
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
148.3 miles from Buffalo, PA
A natural place for your longest stop of the day
, about 2h 59m into the drive
.
Main Roads
Road
Distance
Duration
Pennsylvania Turnpike
152 mi
2h 47m
William Penn Highway
42.8 mi
50m
Dwight D Eisenhower Highway
40.6 mi
55m
American Legion Memorial Highway
22.5 mi
27m
I 81
12.7 mi
15m
78th Division Highway
7.6 mi
8m
Tilghman Street
4.9 mi
8m
Washington Pike
4.7 mi
6m
Longest stretch:
Pennsylvania Turnpike
— 152 mi, about 2h 47m
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
12a6anoon6p11p
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 Buffalo, PA and Allentown, PA.
1
Start on PA 844
4.7 mi·6 min·Washington Pike
2
Continue on PA 844
1.7 mi·3 min·Jefferson Avenue
Use the straight lane.
3
Take the ramp
0.3 mi·36 sec
Toward I 70 East: New Stanton
4
Merge onto I 70
41 mi·55 min·Dwight D Eisenhower Highway
Use the straight / slight right lanes.
5
Take the exit onto I 70
0.5 mi·1 min·I 70
Exit 58Toward I 70 Toll East, I 76 Toll, PATP: Harrisburg, PittsburghUse the slight right lane.
6
Keep slight left at fork onto I 70
0.4 mi·1 min·I 70
Toward I 70 East, I 76 East: Harrisburg
7
Merge onto I 70; I 76; PATP
152 mi·2 hr 47 min·Pennsylvania Turnpike
8
Take the exit
0.9 mi·2 min
Toward I 81, US 11: Carlisle, HarrisburgUse the slight right lane.
9
Keep slight left at fork
0.3 mi·54 sec
Toward US 11 North: HarrisburgUse the straight / slight right lanes.
10
Continue on US 11
1.1 mi·2 min·Harrisburg Pike
Use the straight lane.
11
Take the exit
0.3 mi·34 sec
Toward I 81 North: Harrisburg
12
Merge onto I 81
13 mi·15 min·I 81
Use the straight / right lanes.
13
Take the exit
0.2 mi·14 sec
Toward US 11, US 15: Enola, Marysville
14
Keep slight left at fork
0.3 mi·28 sec
Toward US 11 North, US 15 North: Marysville
15
Keep slight left at fork
0.4 mi·32 sec
16
Merge onto I 81
0.7 mi·1 min·George N. Wade Memorial Bridge
Use the straight / slight right lanes.
17
Continue on I 81
3.4 mi·4 min·American Legion Memorial Highway
18
Keep slight left at fork onto I 81
19 mi·22 min·American Legion Memorial Highway
Use the straight / slight right lanes.
19
Take the exit
0.7 mi·45 sec
Exit 89Toward I 78 East: Allentown
20
Continue on I 78
7.6 mi·8 min·78th Division Highway
21
Continue on I 78; US 22
43 mi·50 min·William Penn Highway
Use the straight lane.
22
Keep slight right at fork onto US 22
1.0 mi·1 min·Lehigh Valley Thruway
Exit 51Toward US 22 East: Pennsylvania Turnpike, LVI AirportUse the slight right lane.
23
Take the exit
0.2 mi·26 sec
Toward CetroniaUse the slight right lane.
24
Turn straight onto Tilghman Street
4.9 mi·8 min·Tilghman Street
Use the straight lane.
25
Arrive at destination
Tilghman Street
Trip Plan
To make the most of this 5h 58m drive, consider an early morning departure from Buffalo, PA. This will give you ample daylight to complete the 296.6 miles and allow for flexibility with your single recommended stop. The longest stretch, 152 miles on the Pennsylvania Turnpike, is a good point to plan a brief rest or refuel before transitioning to surface roads. Keep an eye on your fuel, with an estimated cost of $50, and ensure you have enough for the final leg into Allentown.
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 148.3 miles from Buffalo, PA, or about 2h 59m into the drive.
The longest continuous stretch on this route runs about 152 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 65 miles or 1h 28m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 148.3 miles or 2h 59m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 4h 52m
Traffic, exits, and arrival timing usually matter more near Allentown, PA than in the middle of the route.
Before You Leave
+
Open the route before leaving Buffalo, 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 Buffalo, PA
This is one driving day of about 296.6 miles and 5h 58m.
Your first comfortable stop window is around 65 miles from Buffalo, 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 152 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 18
5 decision points cluster between mile 47.1 and 290.5 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
8
47.1 mi into trip|~1h 7m in|I 70
Take the exit onto I 70 toward I 70 Toll East, I 76 Toll, PATP: Harrisburg, Pittsburgh
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 58
Toward I 70 Toll East, I 76 Toll, PATP: Harrisb...
6
47.6 mi into trip|~1h 8m in|I 70
Keep slight left at fork onto I 70 toward I 70 East, I 76 East: Harrisburg
Highway fork - watch signs carefully. Multiple destination signs - pick the right one
Toward I 70 East, I 76 East: Harrisburg
7
200 mi into trip|~3h 57m in
Take the exit toward I 81, US 11: Carlisle, Harrisburg
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 I 81, US 11: Carlisle, Harrisburg
7
200.9 mi into trip|~3h 59m in
Keep slight left at fork toward US 11 North: Harrisburg
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Toward US 11 North: Harrisburg
9
290.5 mi into trip|~5h 48m in|US 22 / Lehigh Valley Thruway
Keep slight right at fork onto US 22 / Lehigh Valley Thruway toward US 22 East: Pennsylvania Turnpike, LVI Airport
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 51
Toward US 22 East: Pennsylvania Turnpike, LVI A...
Fuel & Cost
Regular Gas
$47.29 one way
$94.59 round trip
$4.05/gal25.4 MPG avg104 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.48
$52.34
$104.67
premium
$4.81
$56.14
$112.29
diesel
$4.80
$56.00
$112.01
Estimated Tolls: $19.83
Pennsylvania Turnpike
(152 mi)$19.76
Lehigh Valley Thruway
(1 mi)$0.07
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
$47
Tolls
$20
Meals
$25–$50
Total
$92–$117
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 103.8 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $31 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
89
1
$31.14
$14.24
Efficient EV
74.2
0
$25.95
$11.86
EV Truck/SUV
118.6
1
$41.52
$18.98
Gas CO2
104 kg
EV CO2
35 kg (66% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
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.
Forecast as of Jul 17, 2026
Origin
Buffalo, PA
Late night
in Buffalo on Monday
Local time
2:45 AM
EDT
Current temp
70°F
Smoke
SE 2 to 6 mph47% chanceLive forecast
Beach Hazards Statement
Beach Hazards Statement issued July 17 at 3:59PM EDT until July 18 at 8:00PM EDT by NWS Cleveland OH
Flood Watch
Flood Watch issued July 17 at 1:40PM EDT until July 19 at 2:00AM EDT by NWS Mount Holly NJ
Destination
Allentown, PA
Late night
in Allentown on Monday
Local time
2:45 AM
EDT
Current temp
86°F
Patchy Smoke
0 mph0% chanceLive forecast
Beach Hazards Statement
Beach Hazards Statement issued July 17 at 3:59PM EDT until July 18 at 8:00PM EDT by NWS Cleveland OH
Flood Watch
Flood Watch issued July 17 at 1:40PM EDT until July 19 at 2:00AM EDT by NWS Mount Holly NJ
82°F
Martinsburg, PA
148 mi in
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
16 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
5h 58m 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.
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 245.4
Park Closure: List of trail closures post-Hurricane Helene
Caution: Black Bears Frequenting the McAfee Knob Area in Virginia
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...
5 mi from route
~11 min detour
Free
near mile 194.3
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...
The battle at Fort Necessity in the summer of 1754 was the opening action of the French and Indian War. This war was a clash of British, French and American Indian cultures. It ended with the removal...
24 mi from route
~60 min detour
Free
near mile 61.4
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...
25 mi from route
~62 min detour
Free
near mile 112.5
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This drive features 56% highway, meaning you'll spend a significant portion of your time on faster roads. The longest continuous stretch on the Pennsylvania Turnpike is 152 miles, offering substantial mileage without frequent exits. After this highway segment, expect a transition to surface roads. The high highway share suggests a drive with potentially dense exit activity on the approach to Allentown.
56% highway, the rest on surface roads — varied driving throughout.
25 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 152 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 47.1 miles in near I 70.
Driving Effort10/10
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 18 significant decision points across 296.6 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 47.1 miles (I 70): Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 47.6 miles (I 70): Highway fork - watch signs carefully. Multiple destination signs - pick the right one; at 200 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Elevation Profile
Gently rolling terrain
2,162 ft346 ft
Total Climb
1,306 ft
Total Descent
2,253 ft
Highest Point
2,162 ft
~84.7 mi in
Elevation Range
1,815 ft
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Buffalo, PA and Allentown, PA, road signs point toward Patp: Harrisburg, Pittsburgh, Harrisburg and Marysville.
The largest city in New York State's Niagara Frontier, Buffalo is a city full of surprises. Though Buffalo is sometimes the butt of jokes about chicken wings, its long-suffering sports teams, and the mountains of snow under which it is supposedly buried each winter, those in the know tell a different story: one of vibrant nightlife, world-class museums and cultural attractions, tight-knit neighborhoods with strong community spirit – and the sunniest summers in Northeastern United States.
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
Doable as a same-day drive at 5h 58m. Total distance: 296.6 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
5h 58m drive, comfortable solo distance.
Scenic Drive
Mixed highway & surface route profile with national parks nearby.
Frequently Asked Questions
The longest stretch is about 152 miles on Pennsylvania Turnpike. The full list of main roads is in the Roads section above.
Expect about $19.83 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 25 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 Allentown, 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 25 rest areas along the route for bathroom stops.
The main spots that need attention: at 47.1 miles (I 70): Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 47.6 miles (I 70): Highway fork - watch signs carefully. Multiple destination signs - pick the right one; at 200 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Yes — Appalachian National Scenic Trail, Carlisle Federal Indian Boarding School National Monument and Flight 93 National Memorial (5 total within detour distance). See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 6.0 hours each way, a round trip means 11.9 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Allentown, PA before the return drive.
