About 5% Starlink odds, weighted to recent UA2643 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 78 recent flights; Starlink found in 4 of 14 Wi-Fi checks since Jan 28, 2026 (last N77430, Aug 8, 2026).
Aircraft seen on UA2643: Boeing 737-900ER, Airbus A321neo, Boeing 737-800.