Over 99% Starlink odds, weighted to recent UA5251 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 88 recent flights; Starlink found in 19 of 22 Wi-Fi checks since Jan 2, 2026 (last N131SY, Oct 17, 2026).
Aircraft seen on UA5251: Embraer E-175, Bombardier CRJ-200.