How far is South Boston, MA from City of Somerville, MA?
The driving distance from South Boston, MA to City of Somerville, MA is about 6.7 miles (10.8 km), with a travel time of about 00h 17m by car.
- The straight-line flight distance is about 4.8 miles (7.7 km).
- For a round trip, plan for roughly 00h 35m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM EDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 17m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
The twenty-first most populous city in the United States and the center of the Boston metropolitan area.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between South Boston and City of Somerville.
Turn-by-Turn Driving Directions
Step-by-step road directions between South Boston and City of Somerville.
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1
Start on Dorchester Street
85 m · 17 sec · Dorchester Street
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2
Turn left onto West Sixth Street
1583 ft · 1 min · West Sixth Street
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3
Continue on Orton-Marotta Way
1105 ft · 44 sec · Orton-Marotta Way
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4
At the end of the road, turn right onto B Street
89 m · 15 sec · B Street
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5
Turn left onto West Fifth Street
547 ft · 19 sec · West Fifth Street
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6
Turn right onto Dorchester Avenue
130 m · 19 sec · Dorchester Avenue
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7
Turn left onto West Fourth Street
1349 ft · 50 sec · West Fourth Street
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8
Turn right onto Frontage Road
49 m · 3 sec · Frontage Road
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9
Continue on Frontage Road
550 ft · 12 sec · Frontage Road
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10
Take the ramp straight toward I 93 North
1287 ft · 31 sec
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11
Merge slight left onto John F. Fitzgerald Expressway
2.1 mi · 4 min · John F. Fitzgerald Expressway
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12
Keep slight right to continue on I 93 North: Concord NH
1.6 mi · 2 min
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13
Take the exit slight right toward MA 28, MA 38: Somerville, Medford
780 ft · 20 sec
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14
Keep slight left to continue on MA 28 South, MA 38 North: Somerville, Medford
668 ft · 18 sec
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15
Turn straight onto Mystic Avenue
1103 ft · 27 sec · Mystic Avenue
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16
Turn left onto Temple Street
1704 ft · 1 min · Temple Street
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17
Turn right onto Broadway
1725 ft · 1 min · Broadway
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18
Turn left onto Central Street
1690 ft · 1 min · Central Street
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19
Turn left onto Pembroke Street
39 m · 5 sec · Pembroke Street
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20
Arrive at your destination
0 m · 1 sec · Pembroke Street
Car Route Details
A richer read on the saved driving route between South Boston and City of Somerville.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
John F. Fitzgerald Expressway
Merge slight left onto John F. Fitzgerald Expressway
2.13 mi · 00h 04m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Mostly Sunny leaving South Boston and Mostly Sunny near City of Somerville.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from South Boston to City of Somerville?
The road trip is about 6.7 miles (10.8 km) and usually takes 00h 17m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Boston is a useful midpoint, sitting about 3.3 miles from South Boston and 3.4 miles from City of Somerville.
How much longer is the road route than the straight-line distance?
The direct path is about 4.8 miles (7.7 km), while the road route adds roughly 1.9 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 7:00 AM to 7:00 PM EDT. If you want a more comfortable same-day return, try to leave by 7:54 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $1.04 one way or $2.09 round trip. Estimated CO2 is about 2.1 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around South Boston and Mostly Sunny near City of Somerville.
Stop Ideas Near Boston
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Cocobeet - Boston
Boston's Old City Hall
Salem City Hall
City Hall Plaza
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Boston.
South Station
North Station
Back Bay station
Route 128 station
Flight Path Map
This map shows the direct air route between South Boston and City of Somerville. Straight-line distance: 4.76 mi (7.66 km).
#1 South Boston
This historic Boston neighborhood, often called "Southie," is situated south of downtown Boston and the Fort Point Channel, with Dorchester Bay to its east and south.
| Population | 571,281 |
| Coordinates | 42.3334300, -71.0494900 |
| Altitude | 14 |
| Country | United States |
#2 City of Somerville
A city in Middlesex County, Massachusetts.
| Population | 75,754 |
| Coordinates | 42.3907200, -71.1013100 |
| Altitude | 18 |
| Country | United States |
End: Pembroke Street (-71.101104, 42.390958)
Estimated Travel Time
Distance: 11 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 13m |
| 40 mph (64.37 km/h) | 00h 10m |
| 50 mph (80.47 km/h) | 00h 08m |
| 60 mph (96.56 km/h) | 00h 06m |
| 70 mph (112.65 km/h) | 00h 05m |
| 80 mph (129 km/h) | 00h 05m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.35 | $1.04 | $2.09 |
| Mid-grade | $4.94 | $1.19 | $2.37 |
| Premium | $5.36 | $1.29 | $2.57 |
| Diesel | $6.13 | $1.47 | $2.94 |
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 · Sep 16, 2026