About 19% Starlink odds, weighted to recent UA203 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 76 recent flights; Starlink found in 4 of 12 Wi-Fi checks since Jan 2, 2026 (last N26232, Sep 30, 2026).
Aircraft seen on UA203: Boeing 737-800, Boeing 787-8, Airbus A321neo, Boeing 737-900ER.