About 36% Starlink odds, weighted to recent UA596 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 148 recent flights; Starlink found in 7 of 13 Wi-Fi checks since Jan 2, 2026 (last N24526, Oct 16, 2026).
Aircraft seen on UA596: Airbus A321neo, Boeing 737-900ER, Boeing 737-800, Airbus A321.