For $303 I got RT TPA to SXM: 23Jun AA1461 TPA-MIA 0900-1003; AA 2219 MIA-SXM 1100-1402 14Jul AA868 SXM-CLT 1620-2029; AA1873 CLT-TPA 2210-2342
The return is pretty late, and is actually flown by US Air (same plane type / much worse seating); but at least it is on the same day, with minimal fare.
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