About 50% Starlink odds, weighted to recent UA2161 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 91 recent flights; Starlink found in 3 of 22 Wi-Fi checks since Jan 17, 2026 (last N39423, Oct 2, 2026).
Aircraft seen on UA2161: Boeing 737-900ER, Boeing 737-900, Boeing 737-700, Boeing 737 MAX 8.