About 5% Starlink odds, weighted to recent UA636 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 96 recent flights; Starlink found in 3 of 21 Wi-Fi checks since Jan 2, 2026 (last N17233, Jul 9, 2026).
Aircraft seen on UA636: Boeing 737 MAX 9, Boeing 737-800, Boeing 737-900ER, Airbus A320.