I'm sorry karma... you were in the right area of the US, not near enough to the city of Louisville. If I didn't fly every day and didn't know the answer by heart, I would've guessed the same thing.
The answer is the Louisville International Airport.
(of course, the only 'international' flights that originate or arrive there are UPS planes, as their central hub is there, but they still insist it be called Louisville International. That's us crazy Kentuckians for you. I wonder when they're gonna change it to Louisville Intergallactic Spaceport?)
Guess that puts me in the hot seat.... Fire away... I'm sure I'll get burned quickly.
Valerie