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Distance from Cascade, MO to IAD Airport

Distance

885 mi

Time

17 hours 13 mins

Gas Cost

$81 - $157

Helpful Inaccurate

There are 705.10 miles from Cascade to Washington Dulles International Airport (IAD) in east direction and 885 miles (1,424.27 kilometers) by car, following the I-64 route.

Cascade and IAD Airport are 17 hours 13 mins far apart, if you drive non-stop .

This is the fastest route from Cascade, MO to IAD Airport. The halfway point is Mascot, TN.

Please note the time difference between Cascade, MO and IAD Airport is 1 hour. The current time in Cascade is 11:53 pm (Mar 11) and the current time in IAD Airport is 12:53 am (Mar 12).

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Lowest Price Rental Cars in Cascade, MO

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Cascade »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 35.53 gallons of gas to cover the route between Cascade, MO and IAD Airport.

The estimated cost of gas to go from Cascade to IAD Airport is $113.83.

During the route, an average car will release 696.06 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 $3.20 per gallon of regular gas. Price last updated on March 11, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Cascade, MO and IAD Airport

If you want to meet halfway between Cascade, MO 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 36.015888 and -83.775726, or 36º 0' 57.1968" N, 83º 46' 32.6136" W. This location is 442.32 miles away from Cascade, MO and IAD Airport and it would take approximately 8 hours 37 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Mascot, TN, situated 471 miles from Cascade, MO and 463 miles from IAD Airport. It would take 7 hours 58 mins to go from Cascade to Mascot and 7 hours 13 mins to go from IAD to Mascot.

Major City Closest to Halfway Point

The major city closest to the halfway point between Cascade, MO and IAD Airport is Knoxville, TN, situated 458 miles from Cascade, MO and 475 miles from IAD Airport. It would take 7 hours 40 mins to go from Cascade to and 7 hours 15 mins to go from IAD to Knoxville.