"The Finale '' is the two - part series finale of the American sitcom Seinfeld. They are the 179th and 180th episodes of the show and the 23rd and 24th episodes of the ninth season. It aired on NBC May 14, 1998 to an audience of 76 million viewers. Its initial running time was 1 hour and 15 minutes.
when did the last episode of seinfeld air
May 14, 1998