About 36% Starlink odds, weighted to recent UA3916 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 34 recent flights; Starlink found in 2 of 4 Wi-Fi checks since May 18, 2026 (last N73278, Aug 23, 2026).
Aircraft seen on UA3916: Boeing 737 MAX 9, Boeing 737-800, Boeing 777-300ER.