About 98% Starlink odds, weighted to recent UA4728 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 91 recent flights; Starlink found in 22 of 23 Wi-Fi checks since Jan 4, 2026 (last N164SY, Oct 10, 2026).
Aircraft seen on UA4728: Embraer E-175, Bombardier CRJ-550.