Distance between cities › USA › South Dakota › Dewey, SD › Distance from Dewey to Long Key Book Hotels

Distance from Dewey, SD to Long Key, FL

Distance

2,291 mi

Time

1 day 18 hours

Gas Cost

$214 - $415

There are 1,840.67 miles from Dewey to Long Key in southeast direction and 2,291 miles (3,687.01 kilometers) by car, following the I-75 and GA 540 route.

Dewey and Long Key are 1 day 18 hours far apart, if you drive non-stop .

This is the fastest route from Dewey, SD to Long Key, FL.

Please note the time difference between Dewey, SD and Long Key, FL is 2 hours. The current time in Dewey is 9:05 am and the current time in Long Key is 11:05 am.

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Lowest Price Rental Cars in Dewey, SD

Planning on renting a car to go from Dewey, SD to Long Key, FL? Here there are some offers to rent a car in Dewey, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Dewey »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 92.01 gallons of gas to cover the route between Dewey, SD and Long Key, FL.

The estimated cost of gas to go from Dewey to Long Key is $300.14.

During the route, an average car will release 1,802.68 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 Dewey, SD and Long Key, FL

If you want to meet halfway between Dewey, SD and Long Key, FL or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 38.242965 and -88.906307, or 38º 14' 34.674" N, 88º 54' 22.7052" W. This location is 1,145.54 miles away from Dewey, SD and Long Key, FL and it would take approximately 21 hours 28 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Bonnie, IL, situated 1,070 miles from Dewey, SD and 1,223 miles from Long Key, FL. It would take 20 hours 19 mins to go from Dewey to Bonnie and 22 hours 47 mins to go from Long Key to Bonnie.

Major Cities Along the Route

Some major cities along the route include Port Saint Lucie, FL, Miami Gardens, FL, Pembroke Pines, FL, Saint Louis, MO, Miramar, FL, Pompano Beach, FL and Columbia, MO.