About 83% Starlink odds, weighted to recent UA4809 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 92 recent flights; Starlink found in 10 of 11 Wi-Fi checks since Jan 19, 2026 (last N573GJ, Oct 18, 2026).
Aircraft seen on UA4809: Bombardier CRJ-550, Embraer E-175.