Split began principal photography on November 11, 2015, and the available sources I found confirm it was still in late 2015 production, but they do not give a precise public end date in the same result set. The safest answer is that filming started on November 11, 2015 and wrapped sometime in late 2015.

Quick Scoop

  • Filming start: November 11, 2015.
  • Filming end: Not stated precisely in the sources I found; reports place production in late 2015.

Context

The most direct source says principal photography began in Philadelphia on November 11, 2015. Another source summarizes that filming took place in Philadelphia in late 2015, which supports a late-2015 wrap but does not pin down the exact final day.