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

Distance from Custer, SD to Allison, IA

Distance

653 mi

Time

11 hours 21 mins

Gas Cost

$60 - $116

There are 547.70 miles from Custer to Allison in east direction and 653 miles (1,050.90 kilometers) by car, following the I-90 and US-14 route.

Custer and Allison are 11 hours 21 mins far apart, if you drive non-stop .

This is the fastest route from Custer, SD to Allison, IA. The halfway point is Fulton, SD.

Please note the time difference between Custer, SD and Allison, IA is 1 hour. The current time in Custer is 8:58 pm and the current time in Allison is 9:58 pm.

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Lowest Price Rental Cars in Custer, SD

Planning on renting a car to go from Custer, SD to Allison, IA? 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 26.21 gallons of gas to cover the route between Custer, SD and Allison, IA.

The estimated cost of gas to go from Custer to Allison is $83.96.

During the route, an average car will release 513.41 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 Allison, IA

If you want to meet halfway between Custer, SD and Allison, IA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.682404 and -97.842934, or 43º 40' 56.6544" N, 97º 50' 34.5624" W. This location is 326.26 miles away from Custer, SD and Allison, IA and it would take approximately 5 hours 40 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Fulton, SD, situated 327 miles from Custer, SD and 332 miles from Allison, IA. It would take 4 hours 42 mins to go from Custer to Fulton and 5 hours 1 min to go from Allison to Fulton.