Distance between cities › USA › Connecticut › Cornwall, CT › Distance from Cornwall to Sidney Book Hotels

Distance from Cornwall, CT to Sidney, ME

Distance

305 mi

Time

6 hours 9 mins

Gas Cost

$28 - $55

There are 256 miles from Cornwall to Sidney in northeast direction and 305 miles (490.85 kilometers) by car, following the I-495 route.

Cornwall and Sidney are 6 hours 9 mins far apart, if you drive non-stop .

This is the fastest route from Cornwall, CT to Sidney, ME.

Cornwall, CT and Sidney, ME are in the same time zone (EDT). Current time in both locations is 9:31 pm.

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Lowest Price Rental Cars in Cornwall, CT

Planning on renting a car to go from Cornwall, CT to Sidney, ME? Here there are some offers to rent a car in Cornwall, CT

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Cornwall »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 12.25 gallons of gas to cover the route between Cornwall, CT and Sidney, ME.

The estimated cost of gas to go from Cornwall to Sidney is $39.96.

During the route, an average car will release 240.03 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 $3.26 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Cornwall, CT and Sidney, ME

If you want to meet halfway between Cornwall, CT and Sidney, ME or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 42.634118 and -71.249251, or 42º 38' 2.8248" N, 71º 14' 57.3036" W. This location is 152.53 miles away from Cornwall, CT and Sidney, ME and it would take approximately 3 hours 4 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Tewksbury, MA, situated 147 miles from Cornwall, CT and 161 miles from Sidney, ME. It would take 3 hours 10 mins to go from Cornwall to Tewksbury and 3 hours 8 mins to go from Sidney to Tewksbury.

Major City Closest to Halfway Point

The major city closest to the halfway point between Cornwall, CT and Sidney, ME is Boston, MA, situated 139 miles from Cornwall, CT and 171 miles from Sidney, ME. It would take 3 hours 2 mins to go from Cornwall to Boston and 3 hours 22 mins to go from Sidney to Boston.