Distance between cities › USA › South Dakota › Keyapaha, SD › Distance from Keyapaha to Watson Book Hotels

Distance from Keyapaha, SD to Watson, AR

Distance

1,040 mi

Time

19 hours 23 mins

Gas Cost

$97 - $188

There are 796.46 miles from Keyapaha to Watson in southeast direction and 1,040 miles (1,673.72 kilometers) by car, following the I-40 route.

Keyapaha and Watson are 19 hours 23 mins far apart, if you drive non-stop .

This is the fastest route from Keyapaha, SD to Watson, AR.

Keyapaha, SD and Watson, AR are in the same time zone (CDT). Current time in both locations is 8:30 pm.

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Lowest Price Rental Cars in Keyapaha, SD

Planning on renting a car to go from Keyapaha, SD to Watson, AR? Here there are some offers to rent a car in Keyapaha, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Keyapaha »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 41.77 gallons of gas to cover the route between Keyapaha, SD and Watson, AR.

The estimated cost of gas to go from Keyapaha to Watson is $136.24.

During the route, an average car will release 818.29 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 Keyapaha, SD and Watson, AR

If you want to meet halfway between Keyapaha, SD and Watson, AR or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 37.129077 and -97.33887, or 37º 7' 44.6772" N, 97º 20' 19.932" W. This location is 519.99 miles away from Keyapaha, SD and Watson, AR and it would take approximately 9 hours 41 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is South Haven, KS, situated 540 miles from Keyapaha, SD and 505 miles from Watson, AR. It would take 10 hours 35 mins to go from Keyapaha to South Haven and 9 hours 1 min to go from Watson to South Haven.