Tickets at this price are available daily. However, peak departure times are selling out quickly so you'll have the best luck finding inventory on midweek departures. The travel window for this fare starts in mid-January with departures available through the end of April, with return flights through May open.
United is matching the price on similar dates, but their fares are more restrictive regarding carry-on baggage. Make sure you are aware of those limits if you choose to purchase with them
As an example, searching on AA.com, I found seats departing DFW on Wednesday, March 27 and returning from LAX on Friday, March 29, 2019.
Need a room in Tinseltown? Here's what we spotted on Hotelwatchdog for the sample dates listed.