About 51% Starlink odds, weighted to recent UA5809 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 69 recent flights; Starlink found in 6 of 9 Wi-Fi checks since Apr 12, 2026 (last N163SY, Sep 11, 2026).
Aircraft seen on UA5809: Bombardier CRJ-200, Embraer E-175.