About 24% Starlink odds, weighted to recent UA1990 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 129 recent flights; Starlink found in 5 of 18 Wi-Fi checks since Mar 14, 2026 (last N39297, Sep 14, 2026).
Aircraft seen on UA1990: Boeing 737-800, Boeing 737-900ER, Airbus A319, Airbus A320.