Over 99% Starlink odds, weighted to recent UA4000 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 101 recent flights; Starlink found in 33 of 34 Wi-Fi checks since Jan 28, 2026 (last N80343, Oct 2, 2026).
Aircraft seen on UA4000: Embraer E-175.