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

Distance from Custer, SD to Denison, IA

Distance

543 mi

Time

9 hours 26 mins

Gas Cost

$51 - $98

There are 433.89 miles from Custer to Denison in southeast direction and 543 miles (873.87 kilometers) by car, following the I-90 and US-14 route.

Custer and Denison are 9 hours 26 mins far apart, if you drive non-stop .

This is the fastest route from Custer, SD to Denison, IA. The halfway point is Kimball, SD.

Please note the time difference between Custer, SD and Denison, IA is 1 hour. The current time in Custer is 2:49 am and the current time in Denison is 3:49 am.

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Lowest Price Rental Cars in Custer, SD

Planning on renting a car to go from Custer, SD to Denison, 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 21.81 gallons of gas to cover the route between Custer, SD and Denison, IA.

The estimated cost of gas to go from Custer to Denison is $71.16.

During the route, an average car will release 427.39 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 Custer, SD and Denison, IA

If you want to meet halfway between Custer, SD and Denison, IA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.736393 and -99.035126, or 43º 44' 11.0148" N, 99º 2' 6.4536" W. This location is 271.59 miles away from Custer, SD and Denison, IA and it would take approximately 4 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 Kimball, SD, situated 268 miles from Custer, SD and 277 miles from Denison, IA. It would take 3 hours 48 mins to go from Custer to Kimball and 4 hours 13 mins to go from Denison to Kimball.