About 34% Starlink odds, weighted to recent UA1728 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 74 recent flights; Starlink found in 1 of 4 Wi-Fi checks since Jan 17, 2026 (last N36272, Oct 2, 2026).
Aircraft seen on UA1728: Boeing 737-800, Airbus A319, Boeing 737.