About 96% Starlink odds, weighted to recent UA5590 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 73 recent flights; Starlink found in 16 of 19 Wi-Fi checks since Jan 2, 2026 (last N140SY, Oct 8, 2026).
Aircraft seen on UA5590: Embraer E-175, Bombardier CRJ-550, Bombardier CRJ-700.