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

Distance from Colman, SD to IAD Airport

Distance

1,275 mi

Time

23 hours 55 mins

Gas Cost

$119 - $231

Helpful Inaccurate

There are 1,057.76 miles from Colman to Washington Dulles International Airport (IAD) in southeast direction and 1,275 miles (2,051.91 kilometers) by car, following the I-90 route.

Colman and IAD Airport are 23 hours 55 mins far apart, if you drive non-stop .

This is the fastest route from Colman, SD to IAD Airport. The halfway point is Lake Station, IN.

Please note the time difference between Colman, SD and IAD Airport is 1 hour. The current time in Colman is 11:03 pm (Mar 12) and the current time in IAD Airport is 12:03 am (Mar 13).

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Lowest Price Rental Cars in Colman, SD

Planning on renting a car to go from Colman, SD to IAD Airport? Here there are some offers to rent a car in Colman, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Colman »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 51.19 gallons of gas to cover the route between Colman, SD and IAD Airport.

The estimated cost of gas to go from Colman to IAD Airport is $166.97.

During the route, an average car will release 1,002.82 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 Colman, SD and IAD Airport

If you want to meet halfway between Colman, 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 41.593136 and -87.254837, or 41º 35' 35.2896" N, 87º 15' 17.4132" W. This location is 637.26 miles away from Colman, SD and IAD Airport and it would take approximately 11 hours 57 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Lake Station, IN, situated 638 miles from Colman, SD and 658 miles from IAD Airport. It would take 9 hours 32 mins to go from Colman to Lake Station and 10 hours 20 mins to go from IAD to Lake Station.

Major City Closest to Halfway Point

The major city closest to the halfway point between Colman, SD and IAD Airport is Chicago, IL, situated 602 miles from Colman, SD and 694 miles from IAD Airport. It would take 8 hours 56 mins to go from Colman to and 10 hours 54 mins to go from IAD to Chicago.