About 93% Starlink odds, weighted to recent UA4663 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 66 recent flights; Starlink found in 12 of 12 Wi-Fi checks since Jan 15, 2026 (last N136SY, Sep 18, 2026).
Aircraft seen on UA4663: Embraer E-175, Bombardier CRJ-550.