About 55% Starlink odds, weighted to recent UA2173 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 146 recent flights; Starlink found in 5 of 16 Wi-Fi checks since Apr 15, 2026 (last N34282, Oct 16, 2026).
Aircraft seen on UA2173: Boeing 737-800, Boeing 737-900ER, Airbus A319, Boeing 737 MAX 8.