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

Distance from Cornwall, CT to Flat Rock, IL

Distance

921 mi

Time

17 hours 53 mins

Gas Cost

$86 - $167

There are 780.79 miles from Cornwall to Flat Rock in southwest direction and 921 miles (1,482.21 kilometers) by car, following the I-80 route.

Cornwall and Flat Rock are 17 hours 53 mins far apart, if you drive non-stop .

This is the fastest route from Cornwall, CT to Flat Rock, IL.

Please note the time difference between Cornwall, CT and Flat Rock, IL is 1 hour. The current time in Cornwall is 5:03 pm and the current time in Flat Rock is 4:03 pm.

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Lowest Price Rental Cars in Cornwall, CT

Planning on renting a car to go from Cornwall, CT to Flat Rock, IL? 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 36.98 gallons of gas to cover the route between Cornwall, CT and Flat Rock, IL.

The estimated cost of gas to go from Cornwall to Flat Rock is $120.62.

During the route, an average car will release 724.44 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 Flat Rock, IL

If you want to meet halfway between Cornwall, CT and Flat Rock, IL or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 41.123923 and -80.770271, or 41º 7' 26.1228" N, 80º 46' 12.9756" W. This location is 460.35 miles away from Cornwall, CT and Flat Rock, IL and it would take approximately 8 hours 56 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Mineral Ridge, OH, situated 456 miles from Cornwall, CT and 467 miles from Flat Rock, IL. It would take 8 hours 53 mins to go from Cornwall to Mineral Ridge and 9 hours 4 mins to go from Flat Rock to Mineral Ridge.