About 31% Starlink odds, weighted to recent UA1538 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 75 recent flights; Starlink found in 2 of 6 Wi-Fi checks since Mar 25, 2026 (last N28478, Jun 20, 2026).
Aircraft seen on UA1538: Boeing 737-900ER, Boeing 737 MAX 8, Boeing 737-800.