Distance between cities › USA › South Dakota › Dewey, SD › Distance from Dewey to Saint Johns Book Hotels

Distance from Dewey, SD to Saint Johns, FL

Distance

1,912 mi

Time

1 day 11 hours

Gas Cost

$178 - $346

There are 1,554.94 miles from Dewey to Saint Johns in southeast direction and 1,912 miles (3,077.07 kilometers) by car, following the I-80 route.

Dewey and Saint Johns are 1 day 11 hours far apart, if you drive non-stop .

This is the fastest route from Dewey, SD to Saint Johns, FL. The halfway point is Kingdom City, MO.

Please note the time difference between Dewey, SD and Saint Johns, FL is 2 hours. The current time in Dewey is 5:46 am and the current time in Saint Johns is 7:46 am.

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Lowest Price Rental Cars in Dewey, SD

Planning on renting a car to go from Dewey, SD to Saint Johns, 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 76.77 gallons of gas to cover the route between Dewey, SD and Saint Johns, FL.

The estimated cost of gas to go from Dewey to Saint Johns is $250.42.

During the route, an average car will release 1,504.03 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 Dewey, SD and Saint Johns, FL

If you want to meet halfway between Dewey, SD and Saint Johns, FL or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 38.907368 and -92.041924, or 38º 54' 26.5248" N, 92º 2' 30.9264" W. This location is 955.76 miles away from Dewey, SD and Saint Johns, FL and it would take approximately 17 hours 50 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Kingdom City, MO, situated 941 miles from Dewey, SD and 1,028 miles from Saint Johns, FL. It would take 13 hours 53 mins to go from Dewey to Kingdom City and 15 hours 24 mins to go from Saint Johns to Kingdom City.

Major City Closest to Halfway Point

The major city closest to the halfway point between Dewey, SD and Saint Johns, FL is Columbia, MO, situated 919 miles from Dewey, SD and 1,050 miles from Saint Johns, FL. It would take 13 hours 34 mins to go from Dewey to and 15 hours 44 mins to go from Saint Johns to Columbia.