About 26% Starlink odds, weighted to recent UA1303 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 135 recent flights; Starlink found in 14 of 33 Wi-Fi checks since Jan 2, 2026 (last N76505, Sep 4, 2026).
Aircraft seen on UA1303: Boeing 737 MAX 8, Boeing 737-800, Boeing 737-900ER, Boeing 737 MAX 9.