About 4% Starlink odds, weighted to recent UA1221 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 104 recent flights; Starlink found in 0 of 16 Wi-Fi checks since Jan 31, 2026.
Aircraft seen on UA1221: Boeing 757-300, Boeing 737 MAX 9, Boeing 737-800, Airbus A320.