<page_title> One Tree Hill (season 9) </page_title> <section_title> Episodes </section_title> <table> <cell> "One Tree Hill" <col_header> Title </col_header> <row_header> 187 </row_header> </cell> <cell> April 4, 2012 <col_header> Original air date </col_header> <row_header> 187 </row_header> </cell> <cell> 1.43 <col_header> U.S. viewers (millions) </col_header> <row_header> 187 </row_header> </cell> </table>
The final episode of One Tree Hill aired on April 4, 2012, and concluded the series with 1.43 million viewers.