JetBlue has round-trip flights from Austin (AUS) to Providenciales (PLS) for $332-$353 with a connection. Flights September to October. Very few weekends available.
This fare has a long 4-hour 40-minute outbound connection. Usually we don’t feature deals that require that much airport time, but we’re making an exception for this one because the last time Turks & Caicos went on sale with good routing was December 16, 2018.