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

Distance from Iona, SD to Willmar, MN

Distance

330 mi

Time

6 hours 36 mins

Gas Cost

$31 - $60

There are 239.97 miles from Iona to Willmar in northeast direction and 330 miles (531.08 kilometers) by car, following the I-90 route.

Iona and Willmar are 6 hours 36 mins far apart, if you drive non-stop .

This is the fastest route from Iona, SD to Willmar, MN.

Iona, SD and Willmar, MN are in the same time zone (CDT). Current time in both locations is 2:18 pm.

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Lowest Price Rental Cars in Iona, SD

Planning on renting a car to go from Iona, SD to Willmar, MN? 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 13.25 gallons of gas to cover the route between Iona, SD and Willmar, MN.

The estimated cost of gas to go from Iona to Willmar is $43.22.

During the route, an average car will release 259.61 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 Iona, SD and Willmar, MN

If you want to meet halfway between Iona, SD and Willmar, MN or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.636902 and -97.078114, or 43º 38' 12.8472" N, 97º 4' 41.2104" W. This location is 164.98 miles away from Iona, SD and Willmar, MN and it would take approximately 3 hours 18 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Humboldt, SD, situated 158 miles from Iona, SD and 175 miles from Willmar, MN. It would take 3 hours 2 mins to go from Iona to Humboldt and 3 hours 38 mins to go from Willmar to Humboldt.

Major City Closest to Halfway Point

The major city closest to the halfway point between Iona, SD and Willmar, MN is Sioux Falls, SD, situated 180 miles from Iona, SD and 159 miles from Willmar, MN. It would take 3 hours 27 mins to go from Iona to Sioux Falls and 3 hours 25 mins to go from Willmar to Sioux Falls.