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

Distance from Dewey, SD to Ava, IL

Distance

1,068 mi

Time

20 hours 22 mins

Gas Cost

$99 - $193

There are 854.14 miles from Dewey to Ava in southeast direction and 1,068 miles (1,718.78 kilometers) by car, following the I-80 route.

Dewey and Ava are 20 hours 22 mins far apart, if you drive non-stop .

This is the fastest route from Dewey, SD to Ava, IL. The halfway point is Sloan, IA.

Please note the time difference between Dewey, SD and Ava, IL is 1 hour. The current time in Dewey is 3:10 am and the current time in Ava is 4:10 am.

Any questions or tips to share?

Share with fellow travellers any question or tips about the route from Dewey, SD to Ava, IL:

Lowest Price Rental Cars in Dewey, SD

Planning on renting a car to go from Dewey, SD to Ava, 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 42.87 gallons of gas to cover the route between Dewey, SD and Ava, IL.

The estimated cost of gas to go from Dewey to Ava is $139.85.

During the route, an average car will release 839.94 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 Ava, IL

If you want to meet halfway between Dewey, SD and Ava, IL or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 42.252712 and -96.257721, or 42º 15' 9.7632" N, 96º 15' 27.7956" W. This location is 533.75 miles away from Dewey, SD and Ava, IL and it would take approximately 10 hours 11 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Sloan, IA, situated 539 miles from Dewey, SD and 581 miles from Ava, IL. It would take 7 hours 57 mins to go from Dewey to Sloan and 9 hours 30 mins to go from Ava to Sloan.