Distance between cities › USA › South Dakota › Dewey, SD › Distance from Dewey to Dulles Book Hotels

Distance from Dewey, SD to Dulles, VA

Distance

1,674 mi

Time

1 day 6 hours

Gas Cost

$156 - $303

There are 1,410.78 miles from Dewey to Dulles in southeast direction and 1,674 miles (2,694.04 kilometers) by car, following the I-90 and US-14 route.

Dewey and Dulles are 1 day 6 hours far apart, if you drive non-stop .

This is the fastest route from Dewey, SD to Dulles, VA.

Please note the time difference between Dewey, SD and Dulles, VA is 2 hours. The current time in Dewey is 6:05 am and the current time in Dulles is 8:05 am.

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Lowest Price Rental Cars in Dewey, SD

Planning on renting a car to go from Dewey, SD to Dulles, VA? Here there are some offers to rent a car in Dewey, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Dewey »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 67.21 gallons of gas to cover the route between Dewey, SD and Dulles, VA.

The estimated cost of gas to go from Dewey to Dulles is $219.25.

During the route, an average car will release 1,316.86 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 Dewey, SD and Dulles, VA

If you want to meet halfway between Dewey, SD and Dulles, VA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.653703 and -89.812678, or 43º 39' 13.3308" N, 89º 48' 45.6408" W. This location is 836.82 miles away from Dewey, SD and Dulles, VA and it would take approximately 15 hours 29 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Wisconsin Dells, WI, situated 808 miles from Dewey, SD and 869 miles from Dulles, VA. It would take 14 hours 25 mins to go from Dewey to Wisconsin Dells and 16 hours 43 mins to go from Dulles to Wisconsin Dells.