As an example, I found seats departing Miami MIA on Friday or Saturday, August 30 or 31, returning from New Orleans MSY on Tuesday, September 3, 2019.
This fare includes a carry-on bag plus one small personal item. A checked bag costs $30 each way.
Standard seat selection is included in this fare.
American's Basic Economy fare is $70 less, which comes to $157 roundtrip for these same dates, which will not include seat selection. First checked bag fee is the same $30 each way.
Looking for a place to stay in the Big Easy? Here's what's available for the long weekend dates on Hotelwatchdog.