About 16% Starlink odds, weighted to recent UA789 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 79 recent flights; Starlink found in 4 of 6 Wi-Fi checks since Apr 9, 2026 (last N14564, Aug 25, 2026).
Aircraft seen on UA789: Boeing 757-300, Airbus A321neo.
Last seen Sep 16, 2026.