About 34% Starlink odds, weighted to recent UA1550 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 87 recent flights; Starlink found in 5 of 19 Wi-Fi checks since Jan 2, 2026 (last N73276, Sep 21, 2026).
Aircraft seen on UA1550: Airbus A320, Boeing 737-800, Boeing 737-900ER.