About 5% Starlink odds, weighted to recent UA1378 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 96 recent flights; Starlink found in 1 of 4 Wi-Fi checks since Apr 3, 2026 (last N47570, Oct 16, 2026).
Aircraft seen on UA1378: Boeing 737 MAX 9, Boeing 737 MAX 8.