Over 99% Starlink odds, weighted to recent UA5321 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 62 recent flights; Starlink found in 8 of 8 Wi-Fi checks since Aug 6, 2026 (last N120SY, Oct 9, 2026).
Aircraft seen on UA5321: Embraer E-175.