About 30% Starlink odds, weighted to recent UA511 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 145 recent flights; Starlink found in 8 of 19 Wi-Fi checks since Jan 31, 2026 (last N34574, Sep 19, 2026).
Aircraft seen on UA511: Airbus A319, Airbus A321neo, Boeing 737-800, Boeing 737-700.