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

Distance from Dewey, SD to Winfield, IL

Distance

983 mi

Time

17 hours 42 mins

Gas Cost

$92 - $178

There are 813.33 miles from Dewey to Winfield in east direction and 983 miles (1,581.99 kilometers) by car, following the I-90 and US-14 route.

Dewey and Winfield are 17 hours 42 mins far apart, if you drive non-stop .

This is the fastest route from Dewey, SD to Winfield, IL.

Please note the time difference between Dewey, SD and Winfield, IL is 1 hour. The current time in Dewey is 9:08 am and the current time in Winfield is 10:08 am.

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Lowest Price Rental Cars in Dewey, SD

Planning on renting a car to go from Dewey, SD to Winfield, IL? 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 39.48 gallons of gas to cover the route between Dewey, SD and Winfield, IL.

The estimated cost of gas to go from Dewey to Winfield is $128.79.

During the route, an average car will release 773.51 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 Winfield, IL

If you want to meet halfway between Dewey, SD and Winfield, IL or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.637923 and -95.718453, or 43º 38' 16.5228" N, 95º 43' 6.4308" W. This location is 491.54 miles away from Dewey, SD and Winfield, IL and it would take approximately 8 hours 51 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Rushmore, MN, situated 480 miles from Dewey, SD and 507 miles from Winfield, IL. It would take 8 hours 33 mins to go from Dewey to Rushmore and 9 hours 18 mins to go from Winfield to Rushmore.