About 53% Starlink odds, weighted to recent UA2251 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 98 recent flights; Starlink found in 7 of 15 Wi-Fi checks since Mar 29, 2026 (last N37274, Oct 19, 2026).
Aircraft seen on UA2251: Boeing 737-800, Boeing 737 MAX 9, Boeing 737-900ER, Airbus A321neo.