Distance between cities › USA › South Carolina › Dorchester, SC › Distance from Dorchester to Ronald Reagan Washington National Airport Book Hotels

Distance from Dorchester, SC to DCA Airport

Distance

493 mi

Time

9 hours 10 mins

Gas Cost

$39 - $76

Helpful Inaccurate

There are 438.69 miles from Dorchester to Ronald Reagan Washington National Airport (DCA) in northeast direction and 493 miles (793.41 kilometers) by car, following the I-95 route.

Dorchester and DCA Airport are 9 hours 10 mins far apart, if you drive non-stop .

This is the fastest route from Dorchester, SC to DCA Airport. The halfway point is Kenly, NC.

Dorchester, SC and DCA Airport are in the same time zone (EDT). Current time in both locations is 6:02 pm.

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Lowest Price Rental Cars in Dorchester, SC

Planning on renting a car to go from Dorchester, SC to DCA Airport? Here there are some offers to rent a car in Dorchester, SC

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Dorchester »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 19.79 gallons of gas to cover the route between Dorchester, SC and DCA Airport.

The estimated cost of gas to go from Dorchester to DCA Airport is $55.11.

During the route, an average car will release 387.67 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 $2.79 per gallon of regular gas. Price last updated on March 4, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Dorchester, SC and DCA Airport

If you want to meet halfway between Dorchester, SC 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 35.646557 and -78.086189, or 35º 38' 47.6052" N, 78º 5' 10.2804" W. This location is 246.35 miles away from Dorchester, SC and DCA Airport and it would take approximately 4 hours 35 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Kenly, NC, situated 234 miles from Dorchester, SC and 260 miles from DCA Airport. It would take 3 hours 47 mins to go from Dorchester to Kenly and 4 hours 2 mins to go from DCA to Kenly.