About 32% Starlink odds, weighted to recent UA583 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 132 recent flights; Starlink found in 5 of 13 Wi-Fi checks since Jan 2, 2026 (last N24537, Sep 3, 2026).
Aircraft seen on UA583: Boeing 737 MAX 9, Airbus A321neo, Boeing 737-900ER, Boeing 737 MAX 8.