About 59% Starlink odds, weighted to recent UA580 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 102 recent flights; Starlink found in 12 of 16 Wi-Fi checks since Feb 28, 2026 (last N54552, Oct 19, 2026).
Aircraft seen on UA580: Airbus A321neo, Boeing 737-700, Boeing 737-900ER, Boeing 737-900.