About 86% Starlink odds, weighted to recent UA1377 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 81 recent flights; Starlink found in 12 of 18 Wi-Fi checks since Jan 2, 2026 (last N34547, Oct 13, 2026).
Aircraft seen on UA1377: Airbus A321neo, Airbus A320, Airbus A321.