About 84% Starlink odds, weighted to recent UA1579 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 95 recent flights; Starlink found in 7 of 25 Wi-Fi checks since Jan 30, 2026 (last N54543, Sep 16, 2026).
Aircraft seen on UA1579: Boeing 737 MAX 8, Airbus A321neo, Boeing 737-800, Boeing 737.