About 21% Starlink odds, weighted to recent UA1229 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 75 recent flights; Starlink found in 4 of 7 Wi-Fi checks since Jan 15, 2026 (last N75428, Sep 1, 2026).
Aircraft seen on UA1229: Boeing 737-900ER, Boeing 737-800, Boeing 737 MAX 9, Boeing 737-900.