How far is South Dennis, MA from Boston, MA?
The driving distance from South Dennis, MA to Boston, MA is about 78.4 miles (126.2 km), with a travel time of about 01h 34m by car.
- The straight-line flight distance is about 65.5 miles (105.4 km).
- For a round trip, plan for roughly 03h 09m 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 34m.
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.
County seat town in Plymouth County, Massachusetts, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Rain Showers
Light Rain Likely
Driving Route Map
The map below follows the saved road route between South Dennis and Boston.
Turn-by-Turn Driving Directions
Step-by-step road directions between South Dennis and Boston.
-
1
Start on Main Street
1164 ft · 31 sec · Main Street
-
2
Turn right onto Highbank Road
2448 ft · 49 sec · Highbank Road
-
3
Turn slight right onto Great Western Road
1 mi · 2 min · Great Western Road
-
4
Continue on North Main Street
606 ft · 23 sec · North Main Street
-
5
Turn left onto Whites Path
1.5 mi · 3 min · Whites Path
-
6
Turn right onto Station Avenue
1670 ft · 41 sec · Station Avenue
-
7
Take the ramp slight right toward US 6 West: Hyannis, Boston
1492 ft · 39 sec
-
8
Merge slight left onto Mid Cape Highway
19.5 mi · 27 min · Mid Cape Highway
-
9
Continue on Sagamore Bridge
2134 ft · 46 sec · Sagamore Bridge
-
10
Continue on Pilgrim Highway
1336 ft · 20 sec · Pilgrim Highway
-
11
Continue on Pilgrims Highway
42.3 mi · 53 min · Pilgrims Highway
-
12
Continue on I 93 North: Boston
8.4 mi · 11 min
-
13
Continue on John F. Fitzgerald Expressway
998 ft · 19 sec · John F. Fitzgerald Expressway
-
14
Take the exit slight left toward South Station, Airport
2666 ft · 1 min
-
15
Keep slight right to continue on South Station
2711 ft · 1 min
-
16
Continue on Lincoln Street
1345 ft · 53 sec · Lincoln Street
-
17
At the end of the road, turn left onto Summer Street
25 m · 4 sec · Summer Street
-
18
Turn right onto Devonshire Street
687 ft · 32 sec · Devonshire Street
-
19
Turn left onto Franklin Street
53 m · 8 sec · Franklin Street
-
20
Turn right onto Arch Street
141 m · 20 sec · Arch Street
-
21
Turn left onto Milk Street
84 m · 11 sec · Milk Street
-
22
Continue on Washington Street
737 ft · 33 sec · Washington Street
-
23
At the end of the road, turn left onto Court Street
144 m · 20 sec · Court Street
-
24
Turn left onto Tremont Street
102 m · 12 sec · Tremont Street
-
25
Arrive at your destination
0 m · 1 sec · Tremont Street
Car Route Details
A richer read on the saved driving route between South Dennis and Boston.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Pilgrims Highway
Continue on Pilgrims Highway
42.3 mi · 00h 53m
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.
Chance Rain Showers leaving South Dennis and Light Rain Likely near Boston.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from South Dennis to Boston?
The road trip is about 78.4 miles (126.2 km) and usually takes 01h 34m 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?
Plymouth is a useful midpoint, sitting about 38.3 miles from South Dennis and 40 miles from Boston.
How much longer is the road route than the straight-line distance?
The direct path is about 65.5 miles (105.4 km), while the road route adds roughly 12.9 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 3:20 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $10.78 one way or $21.55 round trip. Estimated CO2 is about 24.6 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain Showers around South Dennis and Light Rain Likely near Boston.
Stop Ideas Near 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 Plymouth.
Route 128 station
South Station
Back Bay station
North Station
Flight Path Map
This map shows the direct air route between South Dennis and Boston. Straight-line distance: 65.46 mi (105.35 km).
#1 South Dennis
Census designated place
| Population | 3,643 |
| Coordinates | 41.6895600, -70.1564100 |
| Altitude | 10 |
| Country | United States |
#2 Boston
The twenty-first most populous city in the United States and the center of the Boston metropolitan area.
| Population | 691,531 |
| Coordinates | 42.3584300, -71.0597700 |
| Altitude | 14 |
| Country | United States |
End: Tremont Street (-71.060035, 42.358548)
Estimated Travel Time
Distance: 126 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 36m |
| 40 mph (64.37 km/h) | 01h 57m |
| 50 mph (80.47 km/h) | 01h 34m |
| 60 mph (96.56 km/h) | 01h 18m |
| 70 mph (112.65 km/h) | 01h 07m |
| 80 mph (129 km/h) | 00h 58m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $10.78 | $21.55 |
| Mid-grade | $4.40 | $12.18 | $24.36 |
| Premium | $4.80 | $13.29 | $26.59 |
| Diesel | $4.49 | $12.43 | $24.86 |
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 · May 25, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.