About 18% Starlink odds, weighted to recent UA545 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 110 recent flights; Starlink found in 1 of 17 Wi-Fi checks since Jan 17, 2026 (last N37531, Sep 28, 2026).
Aircraft seen on UA545: Boeing 737 MAX 9, Airbus A319, Boeing 737-900ER, Airbus A321neo.