About 98% Starlink odds, weighted to recent UA5691 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 45 recent flights; Starlink found in 9 of 10 Wi-Fi checks since Jan 2, 2026 (last N617UX, Sep 9, 2026).
Aircraft seen on UA5691: Embraer E-175, Mitsubishi CRJ-200LR.