About 30% Starlink odds, weighted to recent UA2153 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 117 recent flights; Starlink found in 8 of 14 Wi-Fi checks since Jan 16, 2026 (last N78285, Oct 6, 2026).
Aircraft seen on UA2153: Boeing 737-800, Boeing 737-900ER, Boeing 737 MAX 8, Boeing 737.