How far is Gwynn Oak, MD from Williamsport, MD?
The driving distance from Gwynn Oak, MD to Williamsport, MD is about 72.5 miles (116.7 km), with a travel time of about 01h 25m by car.
- The straight-line flight distance is about 62.9 miles (101.3 km).
- For a round trip, plan for roughly 02h 51m 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 01h 25m.
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.
Town in Frederick County, Maryland, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers
Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Gwynn Oak and Williamsport.
Turn-by-Turn Driving Directions
Step-by-step road directions between Gwynn Oak and Williamsport.
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1
Start on the route
18 m · 6 sec
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2
Turn right onto Haddon Avenue
54 m · 12 sec · Haddon Avenue
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3
Turn left onto Hillsdale Road
1.5 km · 3 min · Hillsdale Road
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4
Turn slight right onto West Forest Park Avenue
1.4 mi · 4 min · West Forest Park Avenue
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5
Continue on Ingleside Avenue
944 ft · 31 sec · Ingleside Avenue
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6
Take the ramp slight right toward I 70 West
1812 ft · 44 sec
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7
Merge slight left
11.6 mi · 13 min
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8
Continue straight
4.2 mi · 5 min
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9
Continue straight
11.8 mi · 13 min
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10
Continue straight
39.1 mi · 42 min
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11
Take the exit slight right toward I 81 North, I 81 South: Harrisburg, Roanoke
628 ft · 15 sec
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12
Keep slight left to continue on I 81 South: Roanoke
1401 ft · 34 sec
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13
Keep slight right to continue on I 81 South: Roanoke
1528 ft · 49 sec
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14
Keep slight left to continue on I 81 South: Roanoke
1972 ft · 48 sec
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15
Merge slight left onto Maryland Veterans Memorial Highway
1 km · 45 sec · Maryland Veterans Memorial Highway
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16
Take the exit slight right toward US 11: Williamsport
2161 ft · 53 sec
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17
Turn straight onto East Potomac Street
1.3 km · 1 min · East Potomac Street
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18
Arrive at your destination
0 m · 1 sec · East Potomac Street
Car Route Details
A richer read on the saved driving route between Gwynn Oak and Williamsport.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 70 West
Continue straight
39.1 mi · 00h 42m
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 leaving Gwynn Oak and Chance Rain Showers near Williamsport.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Gwynn Oak to Williamsport?
The road trip is about 72.5 miles (116.7 km) and usually takes 01h 25m 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?
New Market is a useful midpoint, sitting about 36.2 miles from Gwynn Oak and 36.3 miles from Williamsport.
How much longer is the road route than the straight-line distance?
The direct path is about 62.9 miles (101.3 km), while the road route adds roughly 9.6 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 3:38 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $10.46 one way or $20.92 round trip. Estimated CO2 is about 22.8 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers around Gwynn Oak and Chance Rain Showers near Williamsport.
Stop Ideas Near New Market
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 New Market.
Frederick Airport, MD
Frederick, MD
Rockville station
Harpers Ferry
Flight Path Map
This map shows the direct air route between Gwynn Oak and Williamsport. Straight-line distance: 62.94 mi (101.3 km).
#1 Gwynn Oak
A census-designated place in Baltimore County, Maryland.
| Population | 47,092 |
| Coordinates | 39.3326100, -76.6927500 |
| Altitude | 130 |
| Country | United States |
#2 Williamsport
Town of the United States
| Population | 2,074 |
| Coordinates | 39.6006500, -77.8205500 |
| Altitude | 124 |
| Country | United States |
End: Williamsport (-77.82055, 39.60065)
Estimated Travel Time
Distance: 117 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 24m |
| 40 mph (64.37 km/h) | 01h 48m |
| 50 mph (80.47 km/h) | 01h 27m |
| 60 mph (96.56 km/h) | 01h 12m |
| 70 mph (112.65 km/h) | 01h 02m |
| 80 mph (129 km/h) | 00h 54m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $10.46 | $20.92 |
| Mid-grade | $4.60 | $11.77 | $23.55 |
| Premium | $4.95 | $12.68 | $25.36 |
| Diesel | $5.98 | $15.31 | $30.62 |
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 Maryland · 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.