Checking Flightaware, this flight has been cancelled twice in the last 9 days:
http://flightaware.com/live/flight/AAL247
Do you want to chance it? This can only be your call.
If your AA flight should cause you to miss the last KOA flight of the day, HA is the least of your problems. You will either be sleeping under the stars, or trying to find a hotel room very late at night.