About 82% Starlink odds, weighted to recent UA5258 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 74 recent flights; Starlink found in 14 of 16 Wi-Fi checks since Jan 4, 2026 (last N107SY, Oct 11, 2026).
Aircraft seen on UA5258: Embraer E-175, Bombardier CRJ-200.