About 44% Starlink odds, weighted to recent UA3875 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 19 recent flights; Starlink found in 4 of 5 Wi-Fi checks since Jun 13, 2026 (last N79279, Oct 16, 2026).
Aircraft seen on UA3875: Boeing 767-300ER, Boeing 737-800, Airbus A321neo.