About 53% Starlink odds, weighted to recent UA2857 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 85 recent flights; Starlink found in 8 of 15 Wi-Fi checks since Jan 16, 2026 (last N24516, Oct 19, 2026).
Aircraft seen on UA2857: Airbus A321neo, Boeing 737-800, Boeing 737 MAX 9, Boeing 737-900ER.