United Airlines have roundtrip airfare travelling to and from Boston (BOS) and New Orleans (MSY) for $159 including taxes and fees. This makes 1 stop.
Travel availability:
Departs BOS: April 3; May 2: Aug 25, 30; Sept 2, 8, 12, 14, 16, 26, 30; Oct 21
Departs MSY: April 4-7, 11-13; May 6, 10, 16-17; July 4; Aug 15-17, 22, 29-30; wide availability in Sept & Oct, for sure on Wednesdays.
Use dates and book it on Priceline or Orbitz
sample travel itinerary attached