Distance between cities › USA › South Dakota › Iona, SD › Distance from Iona to Washington Dulles International Airport Book Hotels

Distance from Iona, SD to IAD Airport

Distance

1,419 mi

Time

1 day 2 hours

Gas Cost

$132 - $257

Helpful Inaccurate

There are 1,180.39 miles from Iona to Washington Dulles International Airport (IAD) in southeast direction and 1,419 miles (2,283.66 kilometers) by car, following the I-90 route.

Iona and IAD Airport are 1 day 2 hours far apart, if you drive non-stop .

This is the fastest route from Iona, SD to IAD Airport. The halfway point is Huntley, IL.

Please note the time difference between Iona, SD and IAD Airport is 1 hour. The current time in Iona is 5:49 am and the current time in IAD Airport is 6:49 am.

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Lowest Price Rental Cars in Iona, SD

Planning on renting a car to go from Iona, SD to IAD Airport? 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 56.98 gallons of gas to cover the route between Iona, SD and IAD Airport.

The estimated cost of gas to go from Iona to IAD Airport is $185.85.

During the route, an average car will release 1,116.27 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 IAD Airport

If you want to meet halfway between Iona, SD and IAD Airport or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 42.135071 and -88.458801, or 42º 8' 6.2556" N, 88º 27' 31.6836" W. This location is 709.35 miles away from Iona, SD and IAD Airport and it would take approximately 13 hours 20 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Huntley, IL, situated 701 miles from Iona, SD and 743 miles from IAD Airport. It would take 10 hours 29 mins to go from Iona to Huntley and 11 hours 47 mins to go from IAD to Huntley.

Major City Closest to Halfway Point

The major city closest to the halfway point between Iona, SD and IAD Airport is Aurora, IL, situated 727 miles from Iona, SD and 733 miles from IAD Airport. It would take 11 hours 5 mins to go from Iona to and 11 hours 35 mins to go from IAD to Aurora.