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

Distance from Keyapaha, SD to Avon, SD

Distance

135 mi

Time

3 hours 30 mins

Gas Cost

$12 - $24

There are 105.16 miles from Keyapaha to Avon in east direction and 135 miles (217.26 kilometers) by car, following the US-18 route.

Keyapaha and Avon are 3 hours 30 mins far apart, if you drive non-stop .

This is the fastest route from Keyapaha, SD to Avon, SD. The halfway point is Herrick, SD.

Keyapaha, SD and Avon, SD are in the same time zone (CDT). Current time in both locations is 10:58 am.

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Lowest Price Rental Cars in Keyapaha, SD

Planning on renting a car to go from Keyapaha, SD to Avon, SD? 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 5.43 gallons of gas to cover the route between Keyapaha, SD and Avon, SD.

The estimated cost of gas to go from Keyapaha to Avon is $17.03.

During the route, an average car will release 106.45 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 $3.14 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Keyapaha, SD and Avon, SD

If you want to meet halfway between Keyapaha, SD and Avon, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.127850 and -99.198212, or 43º 7' 40.26" N, 99º 11' 53.5632" W. This location is 67.64 miles away from Keyapaha, SD and Avon, SD and it would take approximately 1 hour 45 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Herrick, SD, situated 75 miles from Keyapaha, SD and 70 miles from Avon, SD. It would take 2 hours 15 mins to go from Keyapaha to Herrick and 1 hour 46 mins to go from Avon to Herrick.