All nine seasons of Seinfeld will officially leave Netflix on October 1, 2026. The series is departing because the five-year global streaming contract—which Netflix originally secured from Sony Pictures Television in 2019 for over \(\$500\) million—expires after September 30, 2026. Because Seinfeld is owned by Sony, it is not tied exclusively to a single legacy studio like Disney or Warner Bros. Discovery. Consequently, as of mid-2026, no new streaming home has been announced. The iconic "show about nothing" is expected to spark a massive bidding war among rival services such as Peacock, Hulu, and Max.