In article ,
says...

On Sat, 12 Jan 2013 10:21:55 -0500, ESAD wrote:

And most locals refer to our close-in airport as "National Airport," not
Reagan National Airport.

When I was a kid there was a National Airlines and I thought it was
strange that they had their own airport.

https://www.google.com/search?
q=National+airlines+fly+me&hl=en&client=firefox-a&hs=UL5
&tbo=u&rls=org.mozilla:en-USfficial&tbm=isch&source=univ&sa=X&ei=34
_xUMyJKciw0QGT7oHwCg&ved=0CDgQsAQ&biw=1097&bih=691