About 61% Starlink odds, weighted to recent UA1129 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 58 recent flights; Starlink found in 3 of 5 Wi-Fi checks since Jan 15, 2026 (last N14237, Sep 28, 2026).
Aircraft seen on UA1129: Boeing 737-800, Boeing 737 MAX 8, Boeing 737.