About 31% Starlink odds, weighted to recent UA1590 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 74 recent flights; Starlink found in 4 of 9 Wi-Fi checks since Jan 2, 2026 (last N69816, Sep 29, 2026).
Aircraft seen on UA1590: Boeing 737-900ER, Airbus A319, Boeing 737 MAX 9, Boeing 737 MAX 8.