About 19% Starlink odds, weighted to recent UA1823 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 141 recent flights; Starlink found in 4 of 10 Wi-Fi checks since Feb 10, 2026 (last N17403, Oct 18, 2026).
Aircraft seen on UA1823: Boeing 737 MAX 9, Airbus A319, Boeing 737-800, Airbus A320.