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

Distance from Iona, SD to Alsea, OR

Distance

1,533 mi

Time

1 day 3 hours

Gas Cost

$143 - $278

There are 1,199.15 miles from Iona to Alsea in west direction and 1,533 miles (2,467.12 kilometers) by car, following the I-90 route.

Iona and Alsea are 1 day 3 hours far apart, if you drive non-stop .

This is the fastest route from Iona, SD to Alsea, OR.

Please note the time difference between Iona, SD and Alsea, OR is 2 hours. The current time in Iona is 4:25 am and the current time in Alsea is 2:25 am.

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Lowest Price Rental Cars in Iona, SD

Planning on renting a car to go from Iona, SD to Alsea, OR? 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 61.57 gallons of gas to cover the route between Iona, SD and Alsea, OR.

The estimated cost of gas to go from Iona to Alsea is $200.84.

During the route, an average car will release 1,206.24 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 Alsea, OR

If you want to meet halfway between Iona, SD and Alsea, OR or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 45.919485 and -112.411934, or 45º 55' 10.146" N, 112º 24' 42.9624" W. This location is 766.52 miles away from Iona, SD and Alsea, OR and it would take approximately 13 hours 53 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Butte, MT, situated 762 miles from Iona, SD and 772 miles from Alsea, OR. It would take 13 hours 34 mins to go from Iona to Butte and 14 hours 15 mins to go from Alsea to Butte.