About 30% Starlink odds, weighted to recent UA1865 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 82 recent flights; Starlink found in 5 of 10 Wi-Fi checks since Jan 17, 2026 (last N37434, Oct 7, 2026).
Aircraft seen on UA1865: Boeing 737-900ER, Airbus A321neo, Airbus A321.