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

Distance from Iona, SD to Byron, IL

Distance

689 mi

Time

12 hours 35 mins

Gas Cost

$64 - $125

There are 523.90 miles from Iona to Byron in east direction and 689 miles (1,108.84 kilometers) by car, following the I-90 route.

Iona and Byron are 12 hours 35 mins far apart, if you drive non-stop .

This is the fastest route from Iona, SD to Byron, IL.

Iona, SD and Byron, IL are in the same time zone (CDT). Current time in both locations is 3:45 pm.

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Lowest Price Rental Cars in Iona, SD

Planning on renting a car to go from Iona, SD to Byron, IL? 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 27.65 gallons of gas to cover the route between Iona, SD and Byron, IL.

The estimated cost of gas to go from Iona to Byron is $90.20.

During the route, an average car will release 541.77 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 Byron, IL

If you want to meet halfway between Iona, SD and Byron, IL or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.661688 and -93.669325, or 43º 39' 42.0768" N, 93º 40' 9.57" W. This location is 344.28 miles away from Iona, SD and Byron, IL and it would take approximately 6 hours 17 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Walters, MN, situated 334 miles from Iona, SD and 362 miles from Byron, IL. It would take 6 hours 9 mins to go from Iona to Walters and 6 hours 38 mins to go from Byron to Walters.