At One Place

What airport is DCA?

DCA is
Ronald Reagan Washington National Airport
Washington, United States

Why the code is DCA

District of Columbia Airport — although the runways are physically in Virginia.

The airport authority or a contemporaneous record states this directly.

The airport

IATA code
DCA
ICAO code
KDCA
Airport
Ronald Reagan Washington National Airport
City
Washington, United States
Opened
1941
Code origin
Documented

The land was declared part of the District of Columbia when the airport was built, then ruled to be in Virginia by Congress in 1945 for jurisdictional purposes; the code had already been assigned. It has a 1,250-mile perimeter rule and one of the most constrained approaches in the country, following the Potomac in a curve to avoid restricted airspace over the city.

Codes people book by mistake

Code What it actually is
IAD Dulles, 26 miles further out. The two codes exist in their present form specifically to stop people confusing them.

The other code, KDCA

Every airport has two codes. The three-letter IATA code, DCA, is the one on your boarding pass and your luggage tag, and it is assigned for commercial use. The four-letter ICAO code, KDCA, is the one pilots and controllers use, and it is assigned geographically: the first letter or two identify the region, so every airport in the same part of the world shares a prefix. That is why KDCA looks nothing like DCA.

Common questions

What airport is DCA?
Ronald Reagan Washington National Airport, in Washington, United States.
Why is Washington's airport called DCA?
District of Columbia Airport — although the runways are physically in Virginia.
What is the difference between DCA and KDCA?
DCA is the IATA code, used commercially — tickets, timetables, luggage tags. KDCA is the ICAO code, used operationally by pilots and air traffic control, and assigned geographically by region.
Is DCA the same as IAD?
No. IAD is dulles, 26 miles further out. The two codes exist in their present form specifically to stop people confusing them.

Related pages

Sources

  1. Official vendor product documentation — At One Place

How these figures are compiled and checked