Distance between cities › USA › Massachusetts › Lynnfield, MA › Distance from Lynnfield to South Boston Book Hotels

Distance from Lynnfield, MA to South Boston, MA

Distance

18 mi

Time

29 minutes

Gas Cost

$2 - $4

There are 13.86 miles from Lynnfield to South Boston in south direction and 18 miles (28.97 kilometers) by car, following the I-93 route.

Lynnfield and South Boston are 29 minutes far apart, if you drive non-stop .

This is the fastest route from Lynnfield, MA to South Boston, MA. The halfway point is Stoneham, MA.

Lynnfield, MA and South Boston, MA are in the same time zone (EDT). Current time in both locations is 5:24 am.

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Lowest Price Rental Cars in Lynnfield, MA

Planning on renting a car to go from Lynnfield, MA to South Boston, MA? Here there are some offers to rent a car in Lynnfield, MA

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Lynnfield »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 0.74 gallons of gas to cover the route between Lynnfield, MA and South Boston, MA.

The estimated cost of gas to go from Lynnfield to South Boston is $2.66.

During the route, an average car will release 14.52 pounds of CO₂ to the atmosphere. The carbon footprint would be 0.79 pounds of CO₂ per mile.

Average USA gas price used for calculation is $3.58 per gallon of regular gas. Price last updated on March 18, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Lynnfield, MA and South Boston, MA

If you want to meet halfway between Lynnfield, MA and South Boston, MA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 42.455315 and -71.103401, or 42º 27' 19.134" N, 71º 6' 12.2436" W. This location is 9.23 miles away from Lynnfield, MA and South Boston, MA and it would take approximately 14 minutes to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Stoneham, MA, situated 6 miles from Lynnfield, MA and 12 miles from South Boston, MA. It would take 9 minutes to go from Lynnfield to Stoneham and 17 minutes to go from South Boston to Stoneham.