About 82% Starlink odds, weighted to recent UA5211 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 68 recent flights; Starlink found in 15 of 18 Wi-Fi checks since Jan 4, 2026 (last N156SY, Sep 16, 2026).
Aircraft seen on UA5211: Embraer E-175, Mitsubishi CRJ-550.