Distance between cities › USA › South Dakota › Webster, SD › Distance from Webster to Ash Flat Book Hotels

Distance from Webster, SD to Ash Flat, AR

Distance

836 mi

Time

15 hours 27 mins

Gas Cost

$78 - $151

There are 700.72 miles from Webster to Ash Flat in southeast direction and 836 miles (1,345.41 kilometers) by car, following the I-29 and US-81 route.

Webster and Ash Flat are 15 hours 27 mins far apart, if you drive non-stop .

This is the fastest route from Webster, SD to Ash Flat, AR. The halfway point is Bigelow, MO.

Webster, SD and Ash Flat, AR are in the same time zone (CDT). Current time in both locations is 7:12 am.

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Lowest Price Rental Cars in Webster, SD

Planning on renting a car to go from Webster, SD to Ash Flat, AR? Here there are some offers to rent a car in Webster, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Webster »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 33.57 gallons of gas to cover the route between Webster, SD and Ash Flat, AR.

The estimated cost of gas to go from Webster to Ash Flat is $109.52.

During the route, an average car will release 657.77 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 Webster, SD and Ash Flat, AR

If you want to meet halfway between Webster, SD and Ash Flat, AR or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 40.157753 and -95.286278, or 40º 9' 27.9108" N, 95º 17' 10.6008" W. This location is 417.99 miles away from Webster, SD and Ash Flat, AR and it would take approximately 7 hours 43 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Bigelow, MO, situated 421 miles from Webster, SD and 417 miles from Ash Flat, AR. It would take 6 hours 2 mins to go from Webster to Bigelow and 7 hours 6 mins to go from Ash Flat to Bigelow.