About 13% Starlink odds, weighted to recent UA373 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 140 recent flights; Starlink found in 2 of 22 Wi-Fi checks since Feb 13, 2026 (last N37420, Sep 6, 2026).
Aircraft seen on UA373: Boeing 737 MAX 9, Boeing 757-300, Boeing 737-900ER, Boeing 737-800.