About 57% Starlink odds, weighted to recent UA1739 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 75 recent flights; Starlink found in 4 of 6 Wi-Fi checks since May 18, 2026 (last N37422, Oct 4, 2026).
Aircraft seen on UA1739: Boeing 737-900ER, Boeing 737 MAX 9.