About 40% Starlink odds, weighted to recent UA3803 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 7 recent flights; Starlink found in 1 of 2 Wi-Fi checks since Sep 25, 2026 (last N77431, Sep 25, 2026).
Aircraft seen on UA3803: Boeing 737 MAX 9, Boeing 737-900ER.