How far is Mars, PA from Bethlehem, PA?
The driving distance from Mars, PA to Bethlehem, PA is about 303.2 miles (487.9 km), with a travel time of about 05h 03m by car.
- The straight-line flight distance is about 243.3 miles (391.5 km).
- For a round trip, plan for roughly 10h 07m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM EDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 05h 03m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
Township in Franklin County, Pennsylvania
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between Mars and Bethlehem.
Turn-by-Turn Driving Directions
Step-by-step road directions between Mars and Bethlehem.
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1
Start on Crowe Avenue
11 m · 3 sec · Crowe Avenue
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2
Turn slight left onto Irvine Street
1021 ft · 20 sec · Irvine Street
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3
Continue on Mars Valencia Road
1.7 mi · 3 min · Mars Valencia Road
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4
Continue on Babcock Boulevard
1.5 km · 2 min · Babcock Boulevard
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5
Turn sharp left onto Bakerstown Road
3.9 mi · 6 min · Bakerstown Road
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6
Take the ramp slight right toward PA 8 South
105 m · 9 sec
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7
Merge slight left onto William Flinn Highway
2946 ft · 60 sec · William Flinn Highway
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8
Continue on William Flinn Highway
2.2 mi · 4 min · William Flinn Highway
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9
Take the exit slight right toward I 76 Toll, PATP
1443 ft · 57 sec
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10
Keep slight left to continue on I 76 East: Pittsburgh
2055 ft · 50 sec
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11
Merge slight left onto Pennsylvania Turnpike
187.8 mi · 3 hr 26 min · Pennsylvania Turnpike
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12
Take the exit slight right toward I 81, US 11: Carlisle, Harrisburg
1.4 km · 2 min
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13
Keep slight left to continue on US 11 North: Harrisburg
1712 ft · 54 sec
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14
Continue on Harrisburg Pike
1.1 mi · 2 min · Harrisburg Pike
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15
Take the exit straight toward I 81 North: Harrisburg
1358 ft · 33 sec
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16
Merge slight left
12.7 mi · 15 min
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17
Take the exit slight right toward US 11, US 15: Enola, Marysville
931 ft · 14 sec
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18
Keep slight left to continue on US 11 North, US 15 North: Marysville
1828 ft · 28 sec
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19
Keep slight left
2072 ft · 32 sec
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20
Merge slight left onto George N. Wade Memorial Bridge
1.2 km · 1 min · George N. Wade Memorial Bridge
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21
Continue on American Legion Memorial Highway
3.4 mi · 5 min · American Legion Memorial Highway
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22
Keep slight left to continue on American Legion Memorial Highway
19.1 mi · 23 min · American Legion Memorial Highway
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23
Take the exit slight right toward I 78 East: Allentown
1.1 km · 45 sec
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24
Continue on 78th Division Highway
7.6 mi · 9 min · 78th Division Highway
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25
Continue on William Penn Highway
42.8 mi · 51 min · William Penn Highway
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26
Keep slight right to continue on Lehigh Valley Thruway
10.3 mi · 14 min · Lehigh Valley Thruway
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27
Take the exit slight right toward PA 378 South: Bethlehem, Schoenersville Road
1072 ft · 26 sec
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28
Keep slight right to continue on PA 378 South: Bethlehem
1149 ft · 22 sec
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29
Continue on Bethlehem Spur Route
1.8 mi · 2 min · Bethlehem Spur Route
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30
Take the exit slight right toward Eighth Avenue
1208 ft · 33 sec
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31
Turn right onto 8th Avenue
620 ft · 22 sec · 8th Avenue
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32
Turn left onto West Union Boulevard
1 mi · 2 min · West Union Boulevard
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33
Turn left onto Center Street
129 m · 11 sec · Center Street
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34
Turn right onto East Goepp Street
1342 ft · 50 sec · East Goepp Street
-
35
Turn right onto Linden Street
17 m · 1 sec · Linden Street
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36
Arrive at your destination
0 m · 1 sec · Linden Street
Car Route Details
A richer read on the saved driving route between Mars and Bethlehem.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Pennsylvania Turnpike
Merge slight left onto Pennsylvania Turnpike
188 mi · 03h 26m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Sunny leaving Mars and Sunny near Bethlehem.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Mars to Bethlehem?
The road trip is about 303.2 miles (487.9 km) and usually takes 05h 03m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Metal is a useful midpoint, sitting about 151.2 miles from Mars and 152 miles from Bethlehem.
How much longer is the road route than the straight-line distance?
The direct path is about 243.3 miles (391.5 km), while the road route adds roughly 59.9 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 6:00 AM to 8:00 AM EDT. If you want a more comfortable same-day return, try to leave by 6:52 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $43.72 one way or $87.44 round trip. Estimated CO2 is about 95.1 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Mars and Sunny near Bethlehem.
Stop Ideas Near Metal
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 Metal.
Hancock, MD
Hagerstown, MD
Huntingdon
Martinsburg station
Flight Path Map
This map shows the direct air route between Mars and Bethlehem. Straight-line distance: 243.28 mi (391.52 km).
#1 Mars
Borough in Butler County, Pennsylvania, USA
| Population | 1,608 |
| Coordinates | 40.6959000, -80.0117300 |
| Altitude | 317 |
| Country | United States |
#2 Bethlehem
The second most populous city in Northampton County, Pennsylvania.
| Population | 74,892 |
| Coordinates | 40.6259300, -75.3704600 |
| Altitude | 109 |
| Country | United States |
End: Linden Street (-75.370434, 40.625929)
Estimated Travel Time
Distance: 488 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 10h 06m |
| 40 mph (64.37 km/h) | 07h 34m |
| 50 mph (80.47 km/h) | 06h 03m |
| 60 mph (96.56 km/h) | 05h 03m |
| 70 mph (112.65 km/h) | 04h 19m |
| 80 mph (129 km/h) | 03h 46m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $43.72 | $87.44 |
| Mid-grade | $4.60 | $49.21 | $98.42 |
| Premium | $4.95 | $53.01 | $106.02 |
| Diesel | $5.98 | $63.99 | $127.97 |
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 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.