About 40% Starlink odds, weighted to recent UA598 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 96 recent flights; Starlink found in 5 of 8 Wi-Fi checks since Feb 11, 2026 (last N14531, Sep 12, 2026).
Aircraft seen on UA598: Airbus A321neo, Boeing 737-800, Boeing 737.