About 35% Starlink odds, weighted to recent UA2684 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 142 recent flights; Starlink found in 3 of 8 Wi-Fi checks since Mar 29, 2026 (last N77539, Oct 10, 2026).
Aircraft seen on UA2684: Boeing 737-900ER, Boeing 737-800, Airbus A319, Boeing 737-700.