About 21% Starlink odds, weighted to recent UA1398 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 165 recent flights; Starlink found in 2 of 30 Wi-Fi checks since Jan 2, 2026 (last N66828, Aug 29, 2026).
Aircraft seen on UA1398: Boeing 737-800, Airbus A319, Boeing 737 MAX 9, Boeing 737-900ER.