How far is Somerville, MA from Dennis Port, MA?
The driving distance from Somerville, MA to Dennis Port, MA is about 83.8 miles (134.8 km), with a travel time of about 01h 56m by car.
- The straight-line flight distance is about 70.8 miles (114 km).
- For a round trip, plan for roughly 03h 52m 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 56m.
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.
Census-designated place in Plymouth County, Massachusetts
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny then Chance Rain Showers
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Somerville and Dennis Port.
Turn-by-Turn Driving Directions
Step-by-step road directions between Somerville and Dennis Port.
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1
Start on the route
50 m · 18 sec
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2
Turn left onto Highland Avenue
2121 ft · 2 min · Highland Avenue
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3
Continue on Medford Street
134 m · 13 sec · Medford Street
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4
Turn left onto McGrath Highway
3180 ft · 1 min · McGrath Highway
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5
Take the exit slight right toward I 93, MA 38: Medford, Boston
63 m · 6 sec
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6
Keep slight right to continue on I 93 South: Boston
96 m · 9 sec
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7
Turn slight right onto I 93 South: Boston
734 ft · 18 sec
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8
Keep slight left to continue on I 93 South: Boston
1599 ft · 39 sec
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9
Merge slight left
12.5 mi · 18 min
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10
Keep slight left to continue on MA 3 South: Cape Cod
30.9 mi · 39 min
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11
Keep slight right to continue on Pilgrims Highway
12 mi · 15 min · Pilgrims Highway
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12
Continue on Pilgrim Highway
930 ft · 20 sec · Pilgrim Highway
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13
Continue on Sagamore Bridge
2134 ft · 46 sec · Sagamore Bridge
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14
Continue on Mid Cape Highway
22.5 mi · 31 min · Mid Cape Highway
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15
Take the exit slight right toward MA 134 South: West Harwich, Dennisport
1362 ft · 47 sec
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16
Turn straight onto East West Dennis Road
1.1 km · 2 min · East West Dennis Road
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17
Turn left onto Upper County Road
1.8 mi · 3 min · Upper County Road
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18
Turn right onto Depot Street
3090 ft · 1 min · Depot Street
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19
Turn right onto Lower County Road
672 ft · 14 sec · Lower County Road
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20
Turn left onto Sea Street
550 ft · 24 sec · Sea Street
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21
Arrive at your destination
0 m · 1 sec · Sea Street
Car Route Details
A richer read on the saved driving route between Somerville and Dennis Port.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
MA 3 South
Keep slight left to continue on MA 3 South: Cape Cod
30.9 mi · 00h 39m
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.
Partly Sunny then Chance Rain Showers leaving Somerville and Mostly Sunny near Dennis Port.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Somerville to Dennis Port?
The road trip is about 83.8 miles (134.8 km) and usually takes 01h 56m 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?
North Plymouth is a useful midpoint, sitting about 41.8 miles from Somerville and 41.9 miles from Dennis Port.
How much longer is the road route than the straight-line distance?
The direct path is about 70.8 miles (114 km), while the road route adds roughly 13 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 2:38 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $11.51 one way or $23.03 round trip. Estimated CO2 is about 26.3 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny then Chance Rain Showers around Somerville and Mostly Sunny near Dennis Port.
Stop Ideas Near North Plymouth
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 North Plymouth.
Route 128 station
South Station
Back Bay station
North Station
Flight Path Map
This map shows the direct air route between Somerville and Dennis Port. Straight-line distance: 70.86 mi (114.04 km).
#1 Somerville
A city in Middlesex County, Massachusetts.
| Population | 80,935 |
| Coordinates | 42.3876000, -71.0995000 |
| Altitude | 28 |
| Country | United States |
#2 Dennis Port
Census designated place
| Population | 3,162 |
| Coordinates | 41.6584500, -70.1286300 |
| Altitude | 6 |
| Country | United States |
End: Dennis Port (-70.12863, 41.65845)
Estimated Travel Time
Distance: 135 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 47m |
| 40 mph (64.37 km/h) | 02h 05m |
| 50 mph (80.47 km/h) | 01h 40m |
| 60 mph (96.56 km/h) | 01h 23m |
| 70 mph (112.65 km/h) | 01h 11m |
| 80 mph (129 km/h) | 01h 02m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $11.51 | $23.03 |
| Mid-grade | $4.40 | $13.02 | $26.03 |
| Premium | $4.80 | $14.21 | $28.41 |
| Diesel | $4.49 | $13.28 | $26.57 |
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 Massachusetts · Apr 15, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.