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

Distance from Dewey, SD to Mena, AR

Distance

1,049 mi

Time

20 hours 10 mins

Gas Cost

$98 - $190

There are 810.26 miles from Dewey to Mena in southeast direction and 1,049 miles (1,688.20 kilometers) by car, following the I-80 route.

Dewey and Mena are 20 hours 10 mins far apart, if you drive non-stop .

This is the fastest route from Dewey, SD to Mena, AR.

Please note the time difference between Dewey, SD and Mena, AR is 1 hour. The current time in Dewey is 7:35 am and the current time in Mena is 8:35 am.

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Lowest Price Rental Cars in Dewey, SD

Planning on renting a car to go from Dewey, SD to Mena, AR? 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 42.12 gallons of gas to cover the route between Dewey, SD and Mena, AR.

The estimated cost of gas to go from Dewey to Mena is $137.41.

During the route, an average car will release 825.28 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 Mena, AR

If you want to meet halfway between Dewey, SD and Mena, AR or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 39.509993 and -98.692844, or 39º 30' 35.9748" N, 98º 41' 34.2384" W. This location is 524.44 miles away from Dewey, SD and Mena, AR and it would take approximately 10 hours 5 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Portis, KS, situated 504 miles from Dewey, SD and 545 miles from Mena, AR. It would take 10 hours 2 mins to go from Dewey to Portis and 10 hours 8 mins to go from Mena to Portis.