About 39% Starlink odds, weighted to recent UA728 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 105 recent flights; Starlink found in 12 of 15 Wi-Fi checks since Jan 2, 2026 (last N69804, Oct 14, 2026).
Aircraft seen on UA728: Boeing 737-900ER, Boeing 737-800.