Distance between cities › USA › Connecticut › Cornwall, CT › Distance from Cornwall to Ronald Reagan Washington National Airport Book Hotels

Distance from Cornwall, CT to DCA Airport

Distance

325 mi

Time

7 hours 9 mins

Gas Cost

$30 - $59

Helpful Inaccurate

There are 284.43 miles from Cornwall to Ronald Reagan Washington National Airport (DCA) in southwest direction and 325 miles (523.04 kilometers) by car, following the I-95 and NJTP route.

Cornwall and DCA Airport are 7 hours 9 mins far apart, if you drive non-stop .

This is the fastest route from Cornwall, CT to DCA Airport. The halfway point is Rancocas, NJ.

Cornwall, CT and DCA Airport are in the same time zone (EDT). Current time in both locations is 6:03 pm.

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Lowest Price Rental Cars in Cornwall, CT

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Cornwall »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 13.07 gallons of gas to cover the route between Cornwall, CT and DCA Airport.

The estimated cost of gas to go from Cornwall to DCA Airport is $42.64.

During the route, an average car will release 256.11 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 Cornwall, CT and DCA Airport

If you want to meet halfway between Cornwall, CT 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 39.977962 and -74.877052, or 39º 58' 40.6632" N, 74º 52' 37.3872" W. This location is 162.75 miles away from Cornwall, CT and DCA Airport and it would take approximately 3 hours 34 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Rancocas, NJ, situated 170 miles from Cornwall, CT and 161 miles from DCA Airport. It would take 3 hours 17 mins to go from Cornwall to Rancocas and 2 hours 47 mins to go from DCA to Rancocas.

Major City Closest to Halfway Point

The major city closest to the halfway point between Cornwall, CT and DCA Airport is Philadelphia, PA, situated 188 miles from Cornwall, CT and 142 miles from DCA Airport. It would take 3 hours 36 mins to go from Cornwall to and 2 hours 34 mins to go from DCA to Philadelphia.