How far is Erie, PA from Monongahela, PA?
The driving distance from Erie, PA to Monongahela, PA is about 150.1 miles (241.5 km), with a travel time of about 03h 09m by car.
- The straight-line flight distance is about 133.3 miles (214.6 km).
- For a round trip, plan for roughly 06h 19m 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 03h 09m.
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.
Borough in Mercer County, Pennsylvania, United States
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 Erie and Monongahela.
Turn-by-Turn Driving Directions
Step-by-step road directions between Erie and Monongahela.
-
1
Start on State Street
2318 ft · 2 min · State Street
-
2
Turn right onto West 12th Street
2 mi · 4 min · West 12th Street
-
3
Turn right onto Greengarden Boulevard
583 ft · 23 sec · Greengarden Boulevard
-
4
Turn left onto West Bayfront Parkway
862 ft · 20 sec · West Bayfront Parkway
-
5
Continue on Raymond P Shafer Highway
111.8 mi · 2 hr 1 min · Raymond P Shafer Highway
-
6
Keep slight left to continue on Parkway North
11.4 mi · 16 min · Parkway North
-
7
Keep slight right to continue on I 579 South: Veterans Bridge
1.6 mi · 3 min
-
8
Keep slight left to continue on Liberty Bridge
1154 ft · 27 sec
-
9
Continue on Liberty Bridge
2795 ft · 1 min · Liberty Bridge
-
10
Continue on Liberty Tunnels
1.2 mi · 2 min · Liberty Tunnels
-
11
Continue on West Liberty Avenue
46 m · 4 sec · West Liberty Avenue
-
12
Take the exit slight right toward PA 51: Uniontown
719 ft · 42 sec
-
13
Merge slight left onto Saw Mill Run Boulevard
2.6 mi · 6 min · Saw Mill Run Boulevard
-
14
Turn slight right onto Fairhaven Road
532 ft · 15 sec · Fairhaven Road
-
15
Continue on Provost Road
1.3 mi · 3 min · Provost Road
-
16
Continue on Brownsville Road
2 mi · 4 min · Brownsville Road
-
17
Continue on Brownsville Road
2903 ft · 1 min · Brownsville Road
-
18
Continue on Brownsville Road
3.9 mi · 8 min · Brownsville Road
-
19
Turn slight left onto McChain Road
1.8 mi · 4 min · McChain Road
-
20
At the end of the road, turn left onto Finleyville Elrama Road
2159 ft · 46 sec · Finleyville Elrama Road
-
21
Take the ramp right
2776 ft · 1 min
-
22
Merge slight left onto Mon/Fayette Expressway
3.1 mi · 3 min · Mon/Fayette Expressway
-
23
Take the exit slight right toward PA 136: Eighty Four, Monongahela
1773 ft · 43 sec
-
24
Turn left onto Dry Run Road
1.4 km · 1 min · Dry Run Road
-
25
Continue on Dry Run Road
2.3 mi · 3 min · Dry Run Road
-
26
At the end of the road, turn right
1.2 km · 2 min
-
27
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Erie and Monongahela.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Raymond P Shafer Highway
Continue on Raymond P Shafer Highway
112 mi · 02h 02m
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 Erie and Sunny near Monongahela.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Erie to Monongahela?
The road trip is about 150.1 miles (241.5 km) and usually takes 03h 09m 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?
Grove City is a useful midpoint, sitting about 75.1 miles from Erie and 75 miles from Monongahela.
How much longer is the road route than the straight-line distance?
The direct path is about 133.3 miles (214.6 km), while the road route adds roughly 16.8 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 10:40 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $21.66 one way or $43.31 round trip. Estimated CO2 is about 47.1 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Erie and Sunny near Monongahela.
Stop Ideas Near Grove City
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 Grove City.
Union Station
Alliance
Greensburg
Union Station
Flight Path Map
This map shows the direct air route between Erie and Monongahela. Straight-line distance: 133.33 mi (214.58 km).
#1 Erie
The second most populous city in Pennsylvania.
| Population | 95,077 |
| Coordinates | 42.1292200, -80.0850600 |
| Altitude | 199 |
| Country | United States |
#2 Monongahela
City of Pennsylvania
| Population | 4,090 |
| Coordinates | 40.2031300, -79.9261600 |
| Altitude | 231 |
| Country | United States |
End: Monongahela (-79.92616, 40.20313)
Estimated Travel Time
Distance: 242 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 00m |
| 40 mph (64.37 km/h) | 03h 45m |
| 50 mph (80.47 km/h) | 03h 00m |
| 60 mph (96.56 km/h) | 02h 30m |
| 70 mph (112.65 km/h) | 02h 08m |
| 80 mph (129 km/h) | 01h 52m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $21.66 | $43.31 |
| Mid-grade | $4.60 | $24.37 | $48.75 |
| Premium | $4.95 | $26.26 | $52.51 |
| Diesel | $5.98 | $31.69 | $63.39 |
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.