About 98% Starlink odds, weighted to recent UA5504 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 50 recent flights; Starlink found in 10 of 10 Wi-Fi checks since Apr 1, 2026 (last N601UX, Sep 28, 2026).
Aircraft seen on UA5504: Embraer E-175, Bombardier CRJ-550.