Flights at this price can be found on select weekdays starting as soon as next week through mid-November. You'll have to be flexible with dates but availability is out there.
Searching on AA.com, I found seats departing SFO on Tuesday, August 28 and returning from LIH on Thursday, September 6, 2018. Other travel dates are scattered throughout the fall.
Need a place to rest your head in Hawaii? Here's what's available for the sample dates on Hotelwatchdog.