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

Distance from Dewey, SD to Ashton, IL

Distance

962 mi

Time

17 hours 15 mins

Gas Cost

$90 - $174

There are 760.22 miles from Dewey to Ashton in east direction and 962 miles (1,548.19 kilometers) by car, following the I-90 and US-14 route.

Dewey and Ashton are 17 hours 15 mins far apart, if you drive non-stop .

This is the fastest route from Dewey, SD to Ashton, IL. The halfway point is Adrian, MN.

Please note the time difference between Dewey, SD and Ashton, IL is 1 hour. The current time in Dewey is 10:56 am and the current time in Ashton is 11:56 am.

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Lowest Price Rental Cars in Dewey, SD

Planning on renting a car to go from Dewey, SD to Ashton, 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 38.62 gallons of gas to cover the route between Dewey, SD and Ashton, IL.

The estimated cost of gas to go from Dewey to Ashton is $125.97.

During the route, an average car will release 756.57 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 Ashton, IL

If you want to meet halfway between Dewey, SD and Ashton, IL or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.625111 and -95.962212, or 43º 37' 30.3996" N, 95º 57' 43.9632" W. This location is 480.78 miles away from Dewey, SD and Ashton, IL and it would take approximately 8 hours 37 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Adrian, MN, situated 472 miles from Dewey, SD and 491 miles from Ashton, IL. It would take 7 hours 2 mins to go from Dewey to Adrian and 7 hours 17 mins to go from Ashton to Adrian.