How far is Erie, PA from Somerset, PA?
The driving distance from Erie, PA to Somerset, PA is about 192.1 miles (309.2 km), with a travel time of about 03h 33m by car.
- The straight-line flight distance is about 155.7 miles (250.5 km).
- For a round trip, plan for roughly 07h 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 03h 33m.
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 Pennsylvania, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms Likely
Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Erie and Somerset.
Turn-by-Turn Driving Directions
Step-by-step road directions between Erie and Somerset.
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1
Start on State Street
2318 ft · 2 min · State Street
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2
Turn right onto West 12th Street
2 mi · 4 min · West 12th Street
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3
Turn right onto Greengarden Boulevard
583 ft · 23 sec · Greengarden Boulevard
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4
Turn left onto West Bayfront Parkway
862 ft · 20 sec · West Bayfront Parkway
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5
Continue on Raymond P Shafer Highway
104 mi · 1 hr 52 min · Raymond P Shafer Highway
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6
Take the exit slight right toward Cranberry, Pennsylvania Turnpike
2944 ft · 1 min
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7
Keep slight left to continue on Youngstown Ohio, Harrisburg
1.2 km · 2 min
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8
Keep slight right to continue on I 76, PATP: Youngstown Ohio, Harrisburg
2328 ft · 57 sec
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9
Keep slight left to continue on I 76 East: Harrisburg
1861 ft · 1 min
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10
Merge slight left onto Pennsylvania Turnpike
81.9 mi · 1 hr 28 min · Pennsylvania Turnpike
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11
Take the exit slight right toward US 219: Somerset, Johnstown
941 ft · 32 sec
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12
Continue on Ramada Road
1822 ft · 35 sec · Ramada Road
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13
Continue on North Pleasant Avenue
1 km · 1 min · North Pleasant Avenue
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14
Turn right onto East Main Street
1063 ft · 18 sec · East Main Street
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15
Arrive at your destination
0 m · 1 sec · East Main Street
Car Route Details
A richer read on the saved driving route between Erie and Somerset.
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
104 mi · 01h 52m
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.
Showers And Thunderstorms Likely leaving Erie and Chance Showers And Thunderstorms near Somerset.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Erie to Somerset?
The road trip is about 192.1 miles (309.2 km) and usually takes 03h 33m 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?
Harmony is a useful midpoint, sitting about 96.1 miles from Erie and 96.1 miles from Somerset.
How much longer is the road route than the straight-line distance?
The direct path is about 155.7 miles (250.5 km), while the road route adds roughly 36.4 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 9:52 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $27.70 one way or $55.41 round trip. Estimated CO2 is about 60.3 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms Likely around Erie and Chance Showers And Thunderstorms near Somerset.
Stop Ideas Near Harmony
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 Harmony.
Union Station
Greensburg
Latrobe station
Alliance
Flight Path Map
This map shows the direct air route between Erie and Somerset. Straight-line distance: 155.63 mi (250.47 km).
#1 Erie
The second most populous city in Pennsylvania.
| Population | 95,077 |
| Coordinates | 42.1292200, -80.0850600 |
| Altitude | 199 |
| Country | United States |
#2 Somerset
Borough in Pennsylvania, United States
| Population | 5,817 |
| Coordinates | 40.0084100, -79.0780800 |
| Altitude | 669 |
| Country | United States |
End: Somerset (-79.07808, 40.00841)
Estimated Travel Time
Distance: 309 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 24m |
| 40 mph (64.37 km/h) | 04h 48m |
| 50 mph (80.47 km/h) | 03h 50m |
| 60 mph (96.56 km/h) | 03h 12m |
| 70 mph (112.65 km/h) | 02h 44m |
| 80 mph (129 km/h) | 02h 23m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $27.70 | $55.41 |
| Mid-grade | $4.60 | $31.18 | $62.36 |
| Premium | $4.95 | $33.59 | $67.18 |
| Diesel | $5.98 | $40.54 | $81.09 |
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 18, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.