About 33% Starlink odds, weighted to recent UA454 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 79 recent flights; Starlink found in 3 of 5 Wi-Fi checks since Jan 2, 2026 (last N66803, Sep 6, 2026).
Aircraft seen on UA454: Boeing 737 MAX 9, Boeing 737-900ER, Boeing 737.