Distance between cities › USA › South Dakota › Mount Vernon, SD › Distance from Mount Vernon to Ronald Reagan Washington National Airport Book Hotels

Distance from Mount Vernon, SD to DCA Airport

Distance

1,349 mi

Time

1 day

Gas Cost

$126 - $244

Helpful Inaccurate

There are 1,148.14 miles from Mount Vernon to Ronald Reagan Washington National Airport (DCA) in southeast direction and 1,349 miles (2,171.01 kilometers) by car, following the I-90 route.

Mount Vernon and DCA Airport are 1 day far apart, if you drive non-stop .

This is the fastest route from Mount Vernon, SD to DCA Airport. The halfway point is Evergreen Park, IL.

Please note the time difference between Mount Vernon, SD and DCA Airport is 1 hour. The current time in Mount Vernon is 6:33 am and the current time in DCA Airport is 7:33 am.

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Lowest Price Rental Cars in Mount Vernon, SD

Planning on renting a car to go from Mount Vernon, SD to DCA Airport? Here there are some offers to rent a car in Mount Vernon, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Mount Vernon »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 54.18 gallons of gas to cover the route between Mount Vernon, SD and DCA Airport.

The estimated cost of gas to go from Mount Vernon to DCA Airport is $176.74.

During the route, an average car will release 1,061.53 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 Mount Vernon, SD and DCA Airport

If you want to meet halfway between Mount Vernon, SD and DCA Airport or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 41.782921 and -87.619431, or 41º 46' 58.5156" N, 87º 37' 9.9516" W. This location is 674.56 miles away from Mount Vernon, SD and DCA Airport and it would take approximately 12 hours 26 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Evergreen Park, IL, situated 660 miles from Mount Vernon, SD and 698 miles from DCA Airport. It would take 9 hours 41 mins to go from Mount Vernon to Evergreen Park and 10 hours 50 mins to go from DCA to Evergreen Park.

Major City Closest to Halfway Point

The major city closest to the halfway point between Mount Vernon, SD and DCA Airport is Chicago, IL, situated 650 miles from Mount Vernon, SD and 704 miles from DCA Airport. It would take 9 hours 28 mins to go from Mount Vernon to and 10 hours 52 mins to go from DCA to Chicago.