About 41% Starlink odds, weighted to recent UA1199 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 123 recent flights; Starlink found in 13 of 24 Wi-Fi checks since Feb 10, 2026 (last N37252, Oct 2, 2026).
Aircraft seen on UA1199: Boeing 737-800, Boeing 737-900ER, Boeing 737 MAX 9.