About 4% Starlink odds, weighted to recent UA1237 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 94 recent flights; Starlink found in 2 of 22 Wi-Fi checks since Jan 2, 2026 (last N14219, Sep 12, 2026).
Aircraft seen on UA1237: Airbus A319, Boeing 737-800, Boeing 737-900ER, Boeing 737 MAX 8.