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

Distance from Iona, SD to Vermillion, SD

Distance

180 mi

Time

4 hours 3 mins

Gas Cost

$16 - $31

There are 137.13 miles from Iona to Vermillion in southeast direction and 180 miles (289.68 kilometers) by car, following the US-18 and SD 47 route.

Iona and Vermillion are 4 hours 3 mins far apart, if you drive non-stop .

This is the fastest route from Iona, SD to Vermillion, SD.

Iona, SD and Vermillion, SD are in the same time zone (CDT). Current time in both locations is 2:24 pm.

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Lowest Price Rental Cars in Iona, SD

Planning on renting a car to go from Iona, SD to Vermillion, 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 7.24 gallons of gas to cover the route between Iona, SD and Vermillion, SD.

The estimated cost of gas to go from Iona to Vermillion is $22.69.

During the route, an average car will release 141.78 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 Vermillion, SD

If you want to meet halfway between Iona, SD and Vermillion, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 42.830902 and -98.388825, or 42º 49' 51.2472" N, 98º 23' 19.77" W. This location is 90.10 miles away from Iona, SD and Vermillion, SD and it would take approximately 2 hours 1 min to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Lynch, NE, situated 90 miles from Iona, SD and 90 miles from Vermillion, SD. It would take 2 hours 15 mins to go from Iona to Lynch and 1 hour 48 mins to go from Vermillion to Lynch.