About 25% Starlink odds, weighted to recent UA2644 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 117 recent flights; Starlink found in 11 of 23 Wi-Fi checks since Jan 16, 2026 (last N37532, Oct 4, 2026).
Aircraft seen on UA2644: Boeing 737-800, Boeing 737 MAX 9, Boeing 737-900ER, Boeing 737.