About 65% Starlink odds, weighted to recent UA590 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 93 recent flights; Starlink found in 6 of 13 Wi-Fi checks since Jan 15, 2026 (last N37277, Oct 16, 2026).
Aircraft seen on UA590: Boeing 737-800, Boeing 737 MAX 9, Boeing 737 MAX 8, Airbus A320.