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Distance from McCook, IL to IAD Airport

Distance

679 mi

Time

13 hours 16 mins

Gas Cost

$63 - $123

Helpful Inaccurate

There are 580.23 miles from McCook to Washington Dulles International Airport (IAD) in southeast direction and 679 miles (1,092.74 kilometers) by car, following the I-90 route.

McCook and IAD Airport are 13 hours 16 mins far apart, if you drive non-stop .

This is the fastest route from McCook, IL to IAD Airport. The halfway point is North Ridgeville, OH.

Please note the time difference between McCook, IL and IAD Airport is 1 hour. The current time in McCook is 11:40 am and the current time in IAD Airport is 12:40 pm.

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Lowest Price Rental Cars in McCook, IL

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in McCook »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 27.27 gallons of gas to cover the route between McCook, IL and IAD Airport.

The estimated cost of gas to go from McCook to IAD Airport is $88.94.

During the route, an average car will release 534.19 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 McCook, IL and IAD Airport

If you want to meet halfway between McCook, IL 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 41.379913 and -82.044327, or 41º 22' 47.6868" N, 82º 2' 39.5772" W. This location is 339.46 miles away from McCook, IL and IAD Airport and it would take approximately 6 hours 38 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is North Ridgeville, OH, situated 333 miles from McCook, IL and 373 miles from IAD Airport. It would take 5 hours 16 mins to go from McCook to North Ridgeville and 6 hours 1 min to go from IAD to North Ridgeville.

Major City Closest to Halfway Point

The major city closest to the halfway point between McCook, IL and IAD Airport is Cleveland, OH, situated 353 miles from McCook, IL and 365 miles from IAD Airport. It would take 5 hours 35 mins to go from McCook to and 5 hours 56 mins to go from IAD to Cleveland.