About 37% Starlink odds, weighted to recent UA1720 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 126 recent flights; Starlink found in 6 of 14 Wi-Fi checks since Feb 11, 2026 (last N76269, Oct 5, 2026).
Aircraft seen on UA1720: Boeing 737-800, Airbus A321neo, Boeing 737-900ER, Boeing 737-900.