Distance between cities › USA › South Dakota › Custer, SD › Distance from Custer to Ashland Book Hotels

Distance from Custer, SD to Ashland, KS

Distance

642 mi

Time

12 hours 53 mins

Gas Cost

$59 - $114

There are 497 miles from Custer to Ashland in southeast direction and 642 miles (1,033.20 kilometers) by car, following the US-26 route.

Custer and Ashland are 12 hours 53 mins far apart, if you drive non-stop .

This is the fastest route from Custer, SD to Ashland, KS. The halfway point is Deer Trail, CO.

Please note the time difference between Custer, SD and Ashland, KS is 1 hour. The current time in Custer is 9:05 pm and the current time in Ashland is 10:05 pm.

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Lowest Price Rental Cars in Custer, SD

Planning on renting a car to go from Custer, SD to Ashland, KS? Here there are some offers to rent a car in Custer, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Custer »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 25.77 gallons of gas to cover the route between Custer, SD and Ashland, KS.

The estimated cost of gas to go from Custer to Ashland is $82.57.

During the route, an average car will release 504.93 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 $3.20 per gallon of regular gas. Price last updated on March 11, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Custer, SD and Ashland, KS

If you want to meet halfway between Custer, SD and Ashland, KS or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 39.605999 and -104.051697, or 39º 36' 21.5964" N, 104º 3' 6.1092" W. This location is 320.86 miles away from Custer, SD and Ashland, KS and it would take approximately 6 hours 26 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Deer Trail, CO, situated 413 miles from Custer, SD and 392 miles from Ashland, KS. It would take 6 hours 8 mins to go from Custer to Deer Trail and 6 hours 28 mins to go from Ashland to Deer Trail.