About 29% Starlink odds, weighted to recent UA1709 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 128 recent flights; Starlink found in 9 of 11 Wi-Fi checks since Jan 16, 2026 (last N75429, Oct 14, 2026).
Aircraft seen on UA1709: Boeing 737-900ER, Boeing 737-800, Boeing 737 MAX 8, Airbus A319.