I suppose you need LRA or AOE status to be able to call it "International".
Franklin County in Vermont is another one way up on the list.
http://www.vermontairports.com/highgate.html


By the way - The REAL busiest airport in the world is . . .

CHICAGO O'HARE, with 928,501 movements in 2003.
ATLANTA had the greatest number of passengers (79 million) followed by OHare,
with 70 million.

To find a non-US airport on the list, you have to go down to position #6,
where Paris' Charles de Gaulle shows 515,000 movements (about half that of
O'Hare).

G Faris