How far is Allentown, PA from Saint Marys, PA?
The driving distance from Allentown, PA to Saint Marys, PA is about 226.6 miles (364.7 km), with a travel time of about 04h 37m by car.
- The straight-line flight distance is about 169.8 miles (273.2 km).
- For a round trip, plan for roughly 09h 14m 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 04h 37m.
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 southern Perry County, Pennsylvania
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers Likely
Chance Rain And Snow Showers
Driving Route Map
The map below follows the saved road route between Allentown and Saint Marys.
Turn-by-Turn Driving Directions
Step-by-step road directions between Allentown and Saint Marys.
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1
Start on Tilghman Street
5 mi · 8 min · Tilghman Street
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2
Take the ramp slight left toward US 22 West: Harrisburg
698 ft · 18 sec
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3
Merge slight left onto Lehigh Valley Thruway
1.1 km · 54 sec · Lehigh Valley Thruway
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4
Merge slight left onto William Penn Highway
21.7 mi · 27 min · William Penn Highway
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5
Take the exit slight right toward PA 61 North: Pottsville
869 ft · 25 sec
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6
Keep slight right to continue on PA 61 North: Pottsville
1529 ft · 44 sec
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7
Merge slight left onto Pottsville Pike
2.4 mi · 3 min · Pottsville Pike
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8
Continue on Centre Turnpike
10.6 mi · 13 min · Centre Turnpike
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9
Continue on Route 61 South
3 mi · 4 min · Route 61 South
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10
Continue on Pottsville Boulevard
1434 ft · 18 sec · Pottsville Boulevard
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11
Continue on South Claude A. Lord Boulevard
797 ft · 21 sec · South Claude A. Lord Boulevard
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12
Turn left onto Mauch Chunk Street
563 ft · 11 sec · Mauch Chunk Street
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13
At the end of the road, turn right onto South Centre Street
2134 ft · 39 sec · South Centre Street
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14
Turn left onto West Market Street
2.3 mi · 5 min · West Market Street
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15
Continue on Pottsville Minersville Highway
1.8 mi · 2 min · Pottsville Minersville Highway
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16
At the end of the road, turn left onto East Sunbury Street
1.2 km · 1 min · East Sunbury Street
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17
Continue on Sunbury Road
9.4 mi · 11 min · Sunbury Road
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18
Continue on Fairgrounds Road
2.2 mi · 2 min · Fairgrounds Road
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19
Continue on Locust Gap Highway
1810 ft · 43 sec · Locust Gap Highway
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20
Continue on Locust Gap Highway
11.1 mi · 13 min · Locust Gap Highway
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21
Continue on South Market Street
9.7 mi · 11 min · South Market Street
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22
Turn right onto Danville-Riverside Bridge Road
1799 ft · 46 sec · Danville-Riverside Bridge Road
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23
Continue on Factory Street
716 ft · 20 sec · Factory Street
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24
Continue on Continental Boulevard
3 mi · 4 min · Continental Boulevard
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25
Take the exit slight right
2146 ft · 52 sec
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26
Merge slight left onto Keystone Shortway
112.9 mi · 2 hr 1 min · Keystone Shortway
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27
Take the exit slight right toward PA 153: Clearfield, Penfield
2880 ft · 1 min
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28
Keep slight right
1315 ft · 32 sec
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29
Turn straight onto State Park Road
7.5 mi · 13 min · State Park Road
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30
Turn right onto Bennetts Valley Highway
7.9 mi · 13 min · Bennetts Valley Highway
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31
Continue on Million Dollar Highway
1235 ft · 21 sec · Million Dollar Highway
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32
Continue on Bennetts Valley Highway
2.6 mi · 4 min · Bennetts Valley Highway
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33
Turn straight onto Million Dollar Highway
8.1 mi · 12 min · Million Dollar Highway
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34
Continue on South Saint Marys Street
747 ft · 15 sec · South Saint Marys Street
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35
Turn right onto Railroad Street
31 m · 2 sec · Railroad Street
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36
Arrive at your destination
0 m · 1 sec · Railroad Street
Car Route Details
A richer read on the saved driving route between Allentown and Saint Marys.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Keystone Shortway
Merge slight left onto Keystone Shortway
113 mi · 02h 01m
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.
Rain Showers Likely leaving Allentown and Chance Rain And Snow Showers near Saint Marys.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Allentown to Saint Marys?
The road trip is about 226.6 miles (364.7 km) and usually takes 04h 37m 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?
Carroll is a useful midpoint, sitting about 113.2 miles from Allentown and 113.5 miles from Saint Marys.
How much longer is the road route than the straight-line distance?
The direct path is about 169.8 miles (273.2 km), while the road route adds roughly 56.8 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 7:46 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $32.69 one way or $65.38 round trip. Estimated CO2 is about 71.1 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers Likely around Allentown and Chance Rain And Snow Showers near Saint Marys.
Stop Ideas Near Carroll
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 Carroll.
Lewistown
Harrisburg Transportation Center
Huntingdon
Tyrone
Flight Path Map
This map shows the direct air route between Allentown and Saint Marys. Straight-line distance: 169.78 mi (273.24 km).
#1 Allentown
The third most populous city in Pennsylvania.
| Population | 121,470 |
| Coordinates | 40.6084300, -75.4901800 |
| Altitude | 103 |
| Country | United States |
#2 Saint Marys
City in Camden County, Georgia, USA
| Population | 12,157 |
| Coordinates | 41.4278400, -78.5608600 |
| Altitude | 506 |
| Country | United States |
End: Saint Marys (-78.56086, 41.42784)
Estimated Travel Time
Distance: 365 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 33m |
| 40 mph (64.37 km/h) | 05h 39m |
| 50 mph (80.47 km/h) | 04h 31m |
| 60 mph (96.56 km/h) | 03h 46m |
| 70 mph (112.65 km/h) | 03h 14m |
| 80 mph (129 km/h) | 02h 49m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $32.69 | $65.38 |
| Mid-grade | $4.60 | $36.79 | $73.58 |
| Premium | $4.95 | $39.63 | $79.26 |
| Diesel | $5.98 | $47.84 | $95.68 |
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 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.