How far is Mercersburg, PA from Haverford, PA?
The driving distance from Mercersburg, PA to Haverford, PA is about 167.9 miles (270.2 km), with a travel time of about 03h 24m by car.
- The straight-line flight distance is about 138.8 miles (223.4 km).
- For a round trip, plan for roughly 06h 48m 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 24m.
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 southern Dauphin County, Pennsylvania
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Rain Showers
Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Mercersburg and Haverford.
Turn-by-Turn Driving Directions
Step-by-step road directions between Mercersburg and Haverford.
-
1
Start on JEB Stuart Alley
38 m · 14 sec · JEB Stuart Alley
-
2
Turn left onto East Seminary Street
71 m · 17 sec · East Seminary Street
-
3
Turn right onto North Main Street
1951 ft · 1 min · North Main Street
-
4
Turn slight right onto Fort Loudon Road
1.2 mi · 2 min · Fort Loudon Road
-
5
Continue on Fort Loudon Road
4.8 mi · 7 min · Fort Loudon Road
-
6
Continue on Path Valley Road
14.3 mi · 25 min · Path Valley Road
-
7
Turn left onto Willow Hill Interchange
1495 ft · 30 sec · Willow Hill Interchange
-
8
Take the ramp straight toward PATP
934 ft · 23 sec
-
9
Keep slight right to continue on I 76 East: Harrisburg
1638 ft · 40 sec
-
10
Merge slight left onto Pennsylvania Turnpike
137.2 mi · 2 hr 28 min · Pennsylvania Turnpike
-
11
Take the exit slight right toward I 76 East: Valley Forge, Philadelphia
3.9 mi · 6 min
-
12
Take the exit slight right toward PA 320: Gulph Mills
1696 ft · 41 sec
-
13
Keep slight right to continue on PA 320 South: Villanova
104 m · 9 sec
-
14
Turn straight onto South Gulph Road
3072 ft · 1 min · South Gulph Road
-
15
Continue on West Montgomery Avenue
4.3 mi · 10 min · West Montgomery Avenue
-
16
Turn left onto Woodside Road
525 ft · 24 sec · Woodside Road
-
17
Turn left onto Winsor Lane
105 m · 18 sec · Winsor Lane
-
18
Turn left
3 m · 1 sec
-
19
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Mercersburg and Haverford.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Pennsylvania Turnpike
Merge slight left onto Pennsylvania Turnpike
137 mi · 02h 28m
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.
Chance Rain Showers leaving Mercersburg and Chance Rain Showers near Haverford.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Mercersburg to Haverford?
The road trip is about 167.9 miles (270.2 km) and usually takes 03h 24m 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?
Royalton is a useful midpoint, sitting about 83.8 miles from Mercersburg and 84.1 miles from Haverford.
How much longer is the road route than the straight-line distance?
The direct path is about 138.8 miles (223.4 km), while the road route adds roughly 29.1 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 10:12 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $24.23 one way or $48.46 round trip. Estimated CO2 is about 52.7 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain Showers around Mercersburg and Chance Rain Showers near Haverford.
Stop Ideas Near Royalton
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 Royalton.
Middletown
Elizabethtown station
Harrisburg Transportation Center
Mount Joy
Flight Path Map
This map shows the direct air route between Mercersburg and Haverford. Straight-line distance: 138.84 mi (223.44 km).
#1 Mercersburg
Borough of Pennsylvania
| Population | 1,527 |
| Coordinates | 39.8278700, -77.9033300 |
| Altitude | 173 |
| Country | United States |
#2 Haverford
A borough in Delaware County, Pennsylvania.
| Population | 49,547 |
| Coordinates | 40.0131700, -75.2943500 |
| Altitude | 97 |
| Country | United States |
End: Haverford (-75.29435, 40.01317)
Estimated Travel Time
Distance: 270 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 35m |
| 40 mph (64.37 km/h) | 04h 11m |
| 50 mph (80.47 km/h) | 03h 21m |
| 60 mph (96.56 km/h) | 02h 47m |
| 70 mph (112.65 km/h) | 02h 23m |
| 80 mph (129 km/h) | 02h 05m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $24.23 | $48.46 |
| Mid-grade | $4.60 | $27.27 | $54.54 |
| Premium | $4.95 | $29.38 | $58.75 |
| Diesel | $5.98 | $35.46 | $70.92 |
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.