About 28% Starlink odds, weighted to recent UA571 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 76 recent flights; Starlink found in 3 of 5 Wi-Fi checks since Apr 9, 2026 (last N14249, Sep 29, 2026).
Aircraft seen on UA571: Boeing 737-800, Boeing 737 MAX 8, Boeing 757-200.