About 22% Starlink odds, weighted to recent UA1331 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 83 recent flights; Starlink found in 5 of 16 Wi-Fi checks since Jan 16, 2026 (last N75433, Aug 25, 2026).
Aircraft seen on UA1331: Boeing 737 MAX 9, Boeing 737-900ER, Boeing 737-800.