About 42% Starlink odds, weighted to recent UA377 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 128 recent flights; Starlink found in 16 of 24 Wi-Fi checks since Jan 2, 2026 (last N24508, Sep 26, 2026).
Aircraft seen on UA377: Airbus A321neo, Boeing 737-900ER, Boeing 737-800, Boeing 737.