About 25% Starlink odds, weighted to recent UA204 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 86 recent flights; Starlink found in 7 of 14 Wi-Fi checks since Mar 26, 2026 (last N14237, Oct 6, 2026).
Aircraft seen on UA204: Boeing 737-800, Airbus A319, Boeing 737-900ER, Boeing 737 MAX 9.