How far is Penn Hills, PA from Saint Marys, PA?
The driving distance from Penn Hills, PA to Saint Marys, PA is about 114.8 miles (184.7 km), with a travel time of about 02h 48m by car.
- The straight-line flight distance is about 92.5 miles (148.8 km).
- For a round trip, plan for roughly 05h 37m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM EDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 02h 48m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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.
Borough of Pennsylvania
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Cloudy
Partly Sunny
Driving Route Map
The map below follows the saved road route between Penn Hills and Saint Marys.
Turn-by-Turn Driving Directions
Step-by-step road directions between Penn Hills and Saint Marys.
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1
Start on Sylvan Avenue
41 m · 11 sec · Sylvan Avenue
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2
Turn left onto Mount Avenue
158 m · 29 sec · Mount Avenue
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3
Turn left onto Verona Road
77 m · 7 sec · Verona Road
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4
Continue on Wildwood Avenue
1953 ft · 57 sec · Wildwood Avenue
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5
At the end of the road, turn right onto Allegheny River Boulevard
1.5 mi · 4 min · Allegheny River Boulevard
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6
Turn left onto Hulton Road
1183 ft · 30 sec · Hulton Road
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7
Continue on Hulton Bridge
1749 ft · 46 sec · Hulton Bridge
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8
Turn right onto Freeport Road
1.3 km · 2 min · Freeport Road
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9
Turn left onto Indianola Road
969 ft · 22 sec · Indianola Road
-
10
Take the ramp slight right toward PA 28 North: New Kensington, Tarentum
1722 ft · 42 sec
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11
Merge slight left onto Allegheny Valley Expressway
24.9 mi · 30 min · Allegheny Valley Expressway
-
12
Keep slight right to continue on US 422 East, PA 28 North: Kittanning, Indiana
1 km · 52 sec
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13
Merge slight left
5.1 mi · 7 min
-
14
Continue straight
35.7 mi · 52 min
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15
Turn right onto South Main Street
1.6 mi · 4 min · South Main Street
-
16
Turn left onto Richards St
1.5 km · 2 min · Richards St
-
17
Continue on Richardsville Road
14.3 mi · 21 min · Richardsville Road
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18
Continue straight
16.9 mi · 25 min
-
19
Turn left onto South Mill Avenue
830 ft · 18 sec · South Mill Avenue
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20
Turn right onto Main Street
1259 ft · 50 sec · Main Street
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21
Turn left onto Depot Street
1159 ft · 20 sec · Depot Street
-
22
Continue on Front Street
5.2 mi · 8 min · Front Street
-
23
Continue on Ridgway Road
4 mi · 6 min · Ridgway Road
-
24
Continue on State Street
1.2 km · 1 min · State Street
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25
Turn left onto South Saint Marys Street
747 ft · 15 sec · South Saint Marys Street
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26
Turn right onto Railroad Street
31 m · 2 sec · Railroad Street
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27
Arrive at your destination
0 m · 1 sec · Railroad Street
Car Route Details
A richer read on the saved driving route between Penn Hills and Saint Marys.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
US 422 East
Continue straight
35.7 mi · 00h 52m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Mostly Cloudy leaving Penn Hills and Partly Sunny near Saint Marys.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Penn Hills to Saint Marys?
The road trip is about 114.8 miles (184.7 km) and usually takes 02h 48m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Hawthorn is a useful midpoint, sitting about 57.2 miles from Penn Hills and 57.5 miles from Saint Marys.
How much longer is the road route than the straight-line distance?
The direct path is about 92.5 miles (148.8 km), while the road route adds roughly 22.3 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 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 12:52 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $18.08 one way or $36.16 round trip. Estimated CO2 is about 36 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy around Penn Hills and Partly Sunny near Saint Marys.
Stop Ideas Near Hawthorn
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 Hawthorn.
Latrobe station
Johnstown
Greensburg
Union Station
Flight Path Map
This map shows the direct air route between Penn Hills and Saint Marys. Straight-line distance: 92.45 mi (148.79 km).
#1 Penn Hills
A borough in Allegheny County, Pennsylvania.
| Population | 40,517 |
| Coordinates | 40.5011800, -79.8392200 |
| Altitude | 286 |
| 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: 185 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 49m |
| 40 mph (64.37 km/h) | 02h 52m |
| 50 mph (80.47 km/h) | 02h 17m |
| 60 mph (96.56 km/h) | 01h 54m |
| 70 mph (112.65 km/h) | 01h 38m |
| 80 mph (129 km/h) | 01h 25m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.46 | $18.08 | $36.16 |
| Mid-grade | $4.93 | $19.95 | $39.89 |
| Premium | $5.31 | $21.49 | $42.97 |
| Diesel | $6.55 | $26.53 | $53.06 |
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 · Oct 15, 2026