Over 99% Starlink odds, weighted to recent UA3590 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 93 recent flights; Starlink found in 36 of 37 Wi-Fi checks since Jan 1, 2026 (last N790YX, Oct 9, 2026).
Aircraft seen on UA3590: Embraer E-175.