How far is Pittsburgh, PA from Saint Marys, PA?
The driving distance from Pittsburgh, PA to Saint Marys, PA is about 124 miles (199.5 km), with a travel time of about 02h 59m by car.
- The straight-line flight distance is about 101.3 miles (163 km).
- For a round trip, plan for roughly 05h 58m 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 59m.
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 in Pennsylvania
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers Likely
Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Pittsburgh and Saint Marys.
Turn-by-Turn Driving Directions
Step-by-step road directions between Pittsburgh and Saint Marys.
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1
Start on Grant Street
14 m · 5 sec · Grant Street
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2
Turn right onto Sixth Avenue
94 m · 10 sec · Sixth Avenue
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3
Turn left onto Bigelow Square
111 m · 8 sec · Bigelow Square
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4
Continue on Bigelow Boulevard
871 ft · 19 sec · Bigelow Boulevard
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5
Take the ramp straight toward I 579: Veterans Bridge
1955 ft · 47 sec
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6
Merge slight left onto Veterans Bridge
1667 ft · 28 sec · Veterans Bridge
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7
Take the exit slight right toward PA 28: Etna
1890 ft · 54 sec
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8
Merge slight left onto Allegheny Valley Expressway
36.8 mi · 48 min · Allegheny Valley Expressway
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9
Keep slight right to continue on US 422 East, PA 28 North: Kittanning, Indiana
1 km · 52 sec
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10
Merge slight left
5.1 mi · 7 min
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11
Continue straight
35.7 mi · 52 min
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12
Turn right onto South Main Street
1.6 mi · 4 min · South Main Street
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13
Turn left onto Richards St
1.5 km · 2 min · Richards St
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14
Continue on Richardsville Road
14.3 mi · 21 min · Richardsville Road
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15
Continue straight
16.9 mi · 25 min
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16
Turn left onto South Mill Avenue
830 ft · 18 sec · South Mill Avenue
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17
Turn right onto Main Street
1259 ft · 50 sec · Main Street
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18
Turn left onto Depot Street
1159 ft · 20 sec · Depot Street
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19
Continue on Front Street
5.2 mi · 8 min · Front Street
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20
Continue on Ridgway Road
4 mi · 6 min · Ridgway Road
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21
Continue on State Street
1.2 km · 1 min · State Street
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22
Turn left onto South Saint Marys Street
747 ft · 15 sec · South Saint Marys Street
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23
Turn right onto Railroad Street
31 m · 2 sec · Railroad Street
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24
Arrive at your destination
0 m · 1 sec · Railroad Street
Car Route Details
A richer read on the saved driving route between Pittsburgh 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.
Allegheny Valley Expressway
Merge slight left onto Allegheny Valley Expressway
36.8 mi · 00h 48m
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.
Rain Showers Likely leaving Pittsburgh and Showers And Thunderstorms near Saint Marys.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Pittsburgh to Saint Marys?
The road trip is about 124 miles (199.5 km) and usually takes 02h 59m 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?
Millville is a useful midpoint, sitting about 62 miles from Pittsburgh and 62 miles from Saint Marys.
How much longer is the road route than the straight-line distance?
The direct path is about 101.3 miles (163 km), while the road route adds roughly 22.7 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 12:32 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $17.86 one way or $35.71 round trip. Estimated CO2 is about 38.8 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers Likely around Pittsburgh and Showers And Thunderstorms near Saint Marys.
Stop Ideas Near Millville
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 Millville.
Latrobe station
Greensburg
Johnstown
Union Station
Flight Path Map
This map shows the direct air route between Pittsburgh and Saint Marys. Straight-line distance: 101.31 mi (163.04 km).
#1 Pittsburgh
The second most populous city in Pennsylvania and the center of the Pittsburgh metropolitan area.
| Population | 299,226 |
| Coordinates | 40.4406200, -79.9958900 |
| Altitude | 233 |
| 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: 200 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 07m |
| 40 mph (64.37 km/h) | 03h 05m |
| 50 mph (80.47 km/h) | 02h 28m |
| 60 mph (96.56 km/h) | 02h 03m |
| 70 mph (112.65 km/h) | 01h 46m |
| 80 mph (129 km/h) | 01h 32m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $17.86 | $35.71 |
| Mid-grade | $4.60 | $20.10 | $40.20 |
| Premium | $4.95 | $21.65 | $43.30 |
| Diesel | $5.98 | $26.13 | $52.27 |
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.