About 43% Starlink odds, weighted to recent UA1023 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 112 recent flights; Starlink found in 6 of 16 Wi-Fi checks since Jan 2, 2026 (last N62889, Sep 27, 2026).
Aircraft seen on UA1023: Boeing 737-900ER, Boeing 737-800, Airbus A321neo, Boeing 737-700.