Bethlehem, PA to Darlington, PA is 326.5 miles and takes about 6h 19m via Pennsylvania Turnpike and I 81, with a fuel budget near $54 and enough daylight to finish in a day. This trip stays within Pennsylvania, connecting the Northeast region to itself. Given its mostly highway profile and manageable duration, it's a straightforward drive, ideal for a single-day transit. You'll spend most of your time on major interstates, making it a functional route for getting from point A to point B without extensive detours.
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
163.3 miles from Bethlehem, PA
A natural place for your longest stop of the day
, about 3h 16m into the drive
.
Main Roads
Road
Distance
Duration
Pennsylvania Turnpike
214.2 mi
3h 54m
William Penn Highway
43.1 mi
51m
I 81
36.6 mi
44m
Lehigh Valley Thruway
9.8 mi
13m
78th Division Highway
7.6 mi
8m
Fairlane Boulevard
4.4 mi
7m
Bethlehem Spur Route
2.3 mi
3m
Elmwood Boulevard
1.9 mi
3m
Longest stretch:
Pennsylvania Turnpike
— 214.2 mi, about 3h 54m
Traffic on I-81
Hour-of-day weekday pattern from 56 FHWA count stations on your route.
Peak
4 PM
~2,821 veh/hr typical
· worst 3,332
Quietest
1 AM
~392 veh/hr
Peak-to-quiet ratio
7.2×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 101 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 Bethlehem, PA and Darlington, PA.
1
Start on Linden Street
367 ft·13 sec·Linden Street
2
Turn right onto East Union Boulevard
0.8 mi·1 min·East Union Boulevard
3
Take the ramp
0.2 mi·30 sec
4
Merge onto PA 378
2.3 mi·3 min·Bethlehem Spur Route
5
Keep slight left at fork
0.8 mi·1 min
Toward US 22 West: AllentownUse the slight left lane.
6
Merge onto US 22
9.8 mi·13 min·Lehigh Valley Thruway
Use the straight / slight right lanes.
7
Merge onto I 78; US 22
43 mi·51 min·William Penn Highway
Use the straight lane.
8
Continue on I 78; US 22
7.6 mi·8 min·78th Division Highway
9
Keep slight left at fork
0.7 mi·49 sec
Exit 1BToward I 81 South: Harrisburg
10
Merge onto I 81
37 mi·44 min·I 81
11
Take the exit
0.3 mi·48 sec
Exit 52Toward US 11: New Kingstown, MiddlesexUse the slight right lane.
12
Keep slight right at fork
201 ft·7 sec
Toward US 11 SouthUse the right lane.
13
Merge onto US 11
1.0 mi·2 min·Harrisburg Pike
Use the straight / right lanes.
14
Take the exit
0.5 mi·1 min
Toward I 76, PATP
15
Keep slight right at fork
0.2 mi·37 sec
Toward I 76 West: PittsburghUse the slight right lane.
16
Merge onto I 76; PATP
214 mi·3 hr 54 min·Pennsylvania Turnpike
17
Take the exit
0.3 mi·37 sec
Exit 13Toward PA 18: Ellwood City, Beaver FallsUse the slight right lane.
18
Turn right onto PA 18
1.3 mi·2 min·Big Beaver Boulevard
Use the left / straight lanes.
19
Turn left onto PA 351
4.4 mi·7 min·Fairlane Boulevard
Use the left lane.
20
At end of road, turn left onto PA 168
0.3 mi·31 sec·Centennial Avenue
21
Continue on PA 168
1.9 mi·3 min·Elmwood Boulevard
22
Continue on PA 168
415 ft·8 sec·2nd Street
23
Arrive at destination
PA 168
Trip Plan
To make the most of this 6-hour drive, consider departing early in the morning to avoid potential rush hour congestion around major interchanges. With a drive time under 7 hours, it's certainly doable in one day, but you might want to plan for one stop to stretch your legs and refuel. The longest stretch of highway is over 200 miles, so ensure you have enough fuel before embarking on that segment. Keep an eye on your fuel gauge as you approach the 214-mile mark on the Pennsylvania Turnpike, as services can be spaced out.
Morning Departure
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Evening Departure
This is a long drive — plan for a morning departure or consider splitting it into two days.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 163.3 miles from Bethlehem, PA, or about 3h 16m into the drive.
The longest continuous stretch on this route runs about 214.2 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 72 miles or 1h 29m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 163.3 miles or 3h 16m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 5h 10m
Traffic, exits, and arrival timing usually matter more near Darlington, PA than in the middle of the route.
Before You Leave
+
Open the route before leaving Bethlehem, 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 Bethlehem, PA
This is one driving day of about 326.5 miles and 6h 19m.
Your first comfortable stop window is around 72 miles from Bethlehem, 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 214.2 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 3.4 and 318.3 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
7
3.4 mi into trip|~5m in
Keep slight left at fork toward US 22 West: Allentown
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left lane.
Toward US 22 West: Allentown
8
102.1 mi into trip|~2h 6m 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
102.3 mi into trip|~2h 7m 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
103.8 mi into trip|~2h 10m 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
8
318.3 mi into trip|~6h 5m in
Take the exit toward PA 18: Ellwood City, Beaver Falls
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 13
Toward PA 18: Ellwood City, Beaver Falls
Fuel & Cost
Regular Gas
$57.46 one way
$114.92 round trip
$4.47/gal25.4 MPG avg114 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.89
$62.83
$125.66
premium
$5.23
$67.18
$134.35
diesel
$6.18
$79.43
$158.85
Estimated Tolls: $28.54
Pennsylvania Turnpike
(214.2 mi)$27.85
Lehigh Valley Thruway
(9.8 mi)$0.69
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
$57
Tolls
$29
Meals
$25–$50
Total
$111–$136
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 114.2 kg one way.
Prices: EIA weekly data, 2026-10-12.
Driving Electric?
About $34 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
98
1
$34.28
$15.67
Efficient EV
81.6
0
$28.57
$13.06
EV Truck/SUV
130.6
1
$45.71
$20.90
Gas CO2
114 kg
EV CO2
38 kg (67% 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 Oct 19, 2026
Origin
Bethlehem, PA
Morning
in Bethlehem on Tuesday
Local time
6:05 AM
EDT
Current temp
34°F
Clear
0 mph0% chanceLive forecast
Freeze Warning
Freeze Warning issued October 18 at 10:42PM EDT until October 19 at 9:00AM EDT by NWS State College PA
Destination
Darlington, PA
Morning
in Darlington on Tuesday
Local time
6:05 AM
EDT
Current temp
66°F
Areas Of Frost then Sunny
N 1 mph0% chanceLive forecast
Freeze Warning
Freeze Warning issued October 18 at 10:42PM EDT until October 19 at 9:00AM EDT by NWS State College PA
63°F
Oil City, PA
163 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
32 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
6h 19m on the road
Start early — leave by 6-7 AM to arrive at a reasonable hour.
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...
4 mi from route
~10 min detour
Free
near mile 101.3
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...
5 mi from route
~13 min detour
Free
near mile 56.3
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...
6 mi from route
~16 min detour
Free
near mile 213.9
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...
25 mi from route
~61 min detour
Free
near mile 247.7
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 191.4
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
Expect a high percentage of highway driving, with 77% of the route on major roads like the Pennsylvania Turnpike and I 81. The longest continuous stretch on a single highway is 214.2 miles, primarily on the Pennsylvania Turnpike. After this extensive highway portion, you'll transition to surface roads, which will likely involve more frequent exits and potentially slower speeds as you approach your destination.
77% highway — fuel and pacing are the main things to plan.
23 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 214.2 mi on Pennsylvania Turnpike.
How Hard Is This Drive?
10/10
This is a straightforward highway drive that stays mostly on Pennsylvania Turnpike and William Penn Highway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 3.4 miles in.
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 326.5 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 3.4 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 102.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 102.3 miles: Highway fork - watch signs carefully. Lane positioning matters here.
Elevation Profile
Gently rolling terrain
2,292 ft356 ft
Total Climb
2,989 ft
Total Descent
2,433 ft
Highest Point
2,292 ft
~209.9 mi in
Elevation Range
1,936 ft
Notable High Points
1,848 ft at ~163.3 miles+721 ft prominence
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Bethlehem, PA and Darlington, PA, road signs point toward Middlesex and Patp.
Bethlehem is one of three cities, along with Allentown and Easton, that are the urban population centers of the Lehigh Valley in eastern Pennsylvania.
In the Lehigh Valley, Bethlehem borders Nazareth to its northwest, Allentown to its west, Hellertown to its southeast, and Easton to its east. The city is about 70 miles (110 km) north of Philadelphia, the sixth-largest city in the United States, and about 80 miles (130 km) west of New York City, the nation's largest city.
Top landmarks
•Bethlehem Waterworks — pump-powered public water supply
•Historic Moravian Bethlehem Historic District — complex of the oldest surviving buildings in Bethlehem, Pennsylvania
•Cathedral Church of the Nativity — church in Pennsylvania, United States
Doable as a same-day drive at 6h 19m. Total distance: 326.5 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
6h 19m drive, plan rest stops for pacing.
Frequently Asked Questions
The longest stretch is about 214.2 miles on Pennsylvania Turnpike. The full list of main roads is in the Roads section above.
Expect about $28.54 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 Darlington, 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 3.4 miles: Highway fork - watch signs carefully. Lane positioning matters here; at 102.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 102.3 miles: Highway fork - watch signs carefully. Lane positioning matters here.
Yes — Carlisle Federal Indian Boarding School National Monument, Appalachian National Scenic Trail 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 6.3 hours each way, a round trip means 12.7 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Darlington, PA before the return drive.
