October in Las Vegas: Bellagio Goes Autumn, Downtown Goes Haunted, 2027 Goes BigLas Vegas enters October 2026 with a packed calendar: Bellagio's fall Conservatory installation, Fremont Street's Halloween costume party, the Palms' Haunted Inn, and 2027 headliners including John Mayer, Oasis, Oprah Winfrey and Marc Anthony.2026-10-12
