Delta, American, and United have round-trip flights from Austin (AUS) to Grand Cayman (GCM) for $219-$225 with a connection. Flights August to October. Extended weekends available. Origin/Destination reversible.
A Carry-on bag and also a personal item is allowed for free on Delta or American. United has bag fees. You can avoid paying for seat selection by accepting the randomly assigned seat at the gate.
Click for more details and booking links Cheap Flights: Austin to/from Grand Cayman $219-$225 r/t [August-October] – Delta / United / American