About 76% Starlink odds, weighted to recent UA5407 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 72 recent flights; Starlink found in 25 of 25 Wi-Fi checks since Jan 2, 2026 (last N602UX, Sep 5, 2026).
Aircraft seen on UA5407: Embraer E-175, Mitsubishi CRJ-701ER, CRJ-550.