Distance between cities › USA › Alabama › Silas, AL › Distance from Silas to Ronald Reagan Washington National Airport Book Hotels

Distance from Silas, AL to DCA Airport

Distance

921 mi

Time

17 hours 17 mins

Gas Cost

$84 - $164

Helpful Inaccurate

There are 801.94 miles from Silas to Ronald Reagan Washington National Airport (DCA) in northeast direction and 921 miles (1,482.21 kilometers) by car, following the I-81 route.

Silas and DCA Airport are 17 hours 17 mins far apart, if you drive non-stop .

This is the fastest route from Silas, AL to DCA Airport. The halfway point is White Pine, TN.

Please note the time difference between Silas, AL and DCA Airport is 1 hour. The current time in Silas is 12:30 am and the current time in DCA Airport is 1:30 am.

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Lowest Price Rental Cars in Silas, AL

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Silas »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 36.98 gallons of gas to cover the route between Silas, AL and DCA Airport.

The estimated cost of gas to go from Silas to DCA Airport is $118.49.

During the route, an average car will release 724.54 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 Silas, AL and DCA Airport

If you want to meet halfway between Silas, AL 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 36.104240 and -83.294434, or 36º 6' 15.264" N, 83º 17' 39.9624" W. This location is 460.42 miles away from Silas, AL and DCA Airport and it would take approximately 8 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 White Pine, TN, situated 477 miles from Silas, AL and 448 miles from DCA Airport. It would take 7 hours 59 mins to go from Silas to White Pine and 6 hours 54 mins to go from DCA to White Pine.