About 5% Starlink odds, weighted to recent UA1731 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 82 recent flights; Starlink found in 1 of 13 Wi-Fi checks since Jan 2, 2026 (last N37437, May 16, 2026).
Aircraft seen on UA1731: Boeing 737 MAX 8, Boeing 737 MAX 9, Boeing 737-900ER, Boeing 777-200.