About 26% Starlink odds, weighted to recent UA1998 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 111 recent flights; Starlink found in 8 of 18 Wi-Fi checks since Jan 2, 2026 (last N66828, Oct 11, 2026).
Aircraft seen on UA1998: Boeing 737-900ER, Boeing 737 MAX 8, Airbus A321neo, Airbus A319.