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

Distance from Iona, SD to Swanton, MD

Distance

1,317 mi

Time

1 day

Gas Cost

$123 - $239

There are 1,079.24 miles from Iona to Swanton in southeast direction and 1,317 miles (2,119.51 kilometers) by car, following the I-90 route.

Iona and Swanton are 1 day far apart, if you drive non-stop .

This is the fastest route from Iona, SD to Swanton, MD. The halfway point is Janesville, WI.

Please note the time difference between Iona, SD and Swanton, MD is 1 hour. The current time in Iona is 8:44 am and the current time in Swanton is 9:44 am.

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Lowest Price Rental Cars in Iona, SD

Planning on renting a car to go from Iona, SD to Swanton, MD? 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 52.89 gallons of gas to cover the route between Iona, SD and Swanton, MD.

The estimated cost of gas to go from Iona to Swanton is $172.51.

During the route, an average car will release 1,036.13 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 Swanton, MD

If you want to meet halfway between Iona, SD and Swanton, MD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 42.666901 and -88.994583, or 42º 40' 0.8436" N, 88º 59' 40.4988" W. This location is 658.42 miles away from Iona, SD and Swanton, MD and it would take approximately 12 hours 12 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest city to the halfway point is Janesville, WI, situated 638 miles from Iona, SD and 686 miles from Swanton, MD. It would take 9 hours 36 mins to go from Iona to Janesville and 10 hours 46 mins to go from Swanton to Janesville.

Major City Closest to Halfway Point

The major city closest to the halfway point between Iona, SD and Swanton, MD is Rockford, IL, situated 672 miles from Iona, SD and 665 miles from Swanton, MD. It would take 10 hours 7 mins to go from Iona to and 10 hours 28 mins to go from Swanton to Rockford.