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

Distance from Dewey, SD to Athens, IL

Distance

1,046 mi

Time

18 hours 43 mins

Gas Cost

$98 - $190

There are 776.99 miles from Dewey to Athens in southeast direction and 1,046 miles (1,683.37 kilometers) by car, following the I-90 and US-14 route.

Dewey and Athens are 18 hours 43 mins far apart, if you drive non-stop .

This is the fastest route from Dewey, SD to Athens, IL. The halfway point is McCook Lake, SD.

Please note the time difference between Dewey, SD and Athens, IL is 1 hour. The current time in Dewey is 3:42 am and the current time in Athens is 4:42 am.

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Lowest Price Rental Cars in Dewey, SD

Planning on renting a car to go from Dewey, SD to Athens, 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 42.02 gallons of gas to cover the route between Dewey, SD and Athens, IL.

The estimated cost of gas to go from Dewey to Athens is $137.07.

During the route, an average car will release 823.26 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 Athens, IL

If you want to meet halfway between Dewey, SD and Athens, IL or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 42.536491 and -96.524834, or 42º 32' 11.3676" N, 96º 31' 29.4024" W. This location is 523.15 miles away from Dewey, SD and Athens, IL and it would take approximately 9 hours 21 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is McCook Lake, SD, situated 509 miles from Dewey, SD and 515 miles from Athens, IL. It would take 7 hours 30 mins to go from Dewey to McCook Lake and 8 hours 9 mins to go from Athens to McCook Lake.