About 54% Starlink odds, weighted to recent UA5191 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 41 recent flights; Starlink found in 13 of 15 Wi-Fi checks since May 17, 2026 (last N132SY, Sep 16, 2026).
Aircraft seen on UA5191: Embraer E-175, Bombardier CRJ-200, Bombardier CRJ-550.