About 11% Starlink odds, weighted to recent UA1439 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 101 recent flights; Starlink found in 2 of 18 Wi-Fi checks since Feb 11, 2026 (last N37456, Oct 3, 2026).
Aircraft seen on UA1439: Boeing 737-900ER, Boeing 737 MAX 8, Airbus A319, Boeing 737 MAX 9.