Distance between cities › USA › South Dakota › Iona, SD › Distance from Iona to Bison Book Hotels

Distance from Iona, SD to Bison, SD

Distance

276 mi

Time

6 hours 5 mins

Gas Cost

$25 - $48

There are 200.61 miles from Iona to Bison in northwest direction and 276 miles (444.18 kilometers) by car, following the SD 34 and SD 63 route.

Iona and Bison are 6 hours 5 mins far apart, if you drive non-stop .

This is the fastest route from Iona, SD to Bison, SD. The halfway point is Kadoka, SD.

Please note the time difference between Iona, SD and Bison, SD is 1 hour. The current time in Iona is 4:21 am and the current time in Bison is 3:21 am.

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Lowest Price Rental Cars in Iona, SD

Planning on renting a car to go from Iona, SD to Bison, SD? Here there are some offers to rent a car in Iona, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Iona »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 11.09 gallons of gas to cover the route between Iona, SD and Bison, SD.

The estimated cost of gas to go from Iona to Bison is $34.77.

During the route, an average car will release 217.27 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 Iona, SD and Bison, SD

If you want to meet halfway between Iona, SD and Bison, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.842319 and -101.571899, or 43º 50' 32.3484" N, 101º 34' 18.8364" W. This location is 138.06 miles away from Iona, SD and Bison, SD and it would take approximately 3 hours 2 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Kadoka, SD, situated 129 miles from Iona, SD and 158 miles from Bison, SD. It would take 2 hours 19 mins to go from Iona to Kadoka and 3 hours 53 mins to go from Bison to Kadoka.