About 41% Starlink odds, weighted to recent UA1429 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 61 recent flights; Starlink found in 5 of 15 Wi-Fi checks since Jan 2, 2026 (last N37466, Oct 2, 2026).
Aircraft seen on UA1429: Boeing 737-900ER, Boeing 737-800, Airbus A319, Boeing 737-700.