About 44% Starlink odds, weighted to recent UA1997 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 159 recent flights; Starlink found in 8 of 41 Wi-Fi checks since Jan 31, 2026 (last N37465, Sep 30, 2026).
Aircraft seen on UA1997: Boeing 737-900ER, Boeing 737 MAX 9, Boeing 737 MAX 8, Boeing 737-800.