About 74% Starlink odds, weighted to recent UA647 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 86 recent flights; Starlink found in 15 of 21 Wi-Fi checks since Jan 2, 2026 (last N14544, Sep 18, 2026).
Aircraft seen on UA647: Boeing 737 MAX 9, Airbus A321neo, Boeing 737.