Over 99% Starlink odds, weighted to recent UA3631 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 72 recent flights; Starlink found in 26 of 26 Wi-Fi checks since Jan 23, 2026 (last N733YX, Oct 15, 2026).
Aircraft seen on UA3631: Embraer E-175.