About 36% Starlink odds, weighted to recent UA353 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 183 recent flights; Starlink found in 15 of 57 Wi-Fi checks since Jan 2, 2026 (last N38459, Oct 16, 2026).
Aircraft seen on UA353: Boeing 737-900ER, Airbus A321neo, Boeing 777-300ER, Boeing 777-200ER.