AA1279 flies directly between Miami, FL (MIA-Miami Intl.) and Providenciales (PLS-Providenciales Intl.) in around 1 hour and 53 minutes. It can sometimes be used on other routes though, some of which could be multi-stop journeys. Keep an eye out for this when booking your seat to avoid any confusion.
There's a strong chance you'll be boarding a Boeing 737-800 if you've booked a seat from Providenciales (PLS-Providenciales Intl.) to Miami, FL (MIA-Miami Intl.), a popular route for flight AA1279.