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

Distance from Iona, SD to Altamont, SD

Distance

263 mi

Time

4 hours 51 mins

Gas Cost

$23 - $45

There are 159.93 miles from Iona to Altamont in northeast direction and 263 miles (423.26 kilometers) by car, following the I-90 route.

Iona and Altamont are 4 hours 51 mins far apart, if you drive non-stop .

This is the fastest route from Iona, SD to Altamont, SD. The halfway point is Alexandria, SD.

Iona, SD and Altamont, SD are in the same time zone (CDT). Current time in both locations is 12:04 am.

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Lowest Price Rental Cars in Iona, SD

Planning on renting a car to go from Iona, SD to Altamont, 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 10.56 gallons of gas to cover the route between Iona, SD and Altamont, SD.

The estimated cost of gas to go from Iona to Altamont is $32.69.

During the route, an average car will release 206.83 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 $3.10 per gallon of regular gas. Price last updated on March 11, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Iona, SD and Altamont, SD

If you want to meet halfway between Iona, SD and Altamont, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.664459 and -97.733688, or 43º 39' 52.0524" N, 97º 44' 1.2768" W. This location is 131.43 miles away from Iona, SD and Altamont, SD and it would take approximately 2 hours 25 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Alexandria, SD, situated 122 miles from Iona, SD and 143 miles from Altamont, SD. It would take 2 hours 12 mins to go from Iona to Alexandria and 2 hours 8 mins to go from Altamont to Alexandria.