About 40% Starlink odds, weighted to recent UA1555 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 57 recent flights; Starlink found in 6 of 8 Wi-Fi checks since Mar 27, 2026 (last N87527, Sep 10, 2026).
Aircraft seen on UA1555: Boeing 737-800, Boeing 737-900ER.