About 17% Starlink odds, weighted to recent UA661 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 192 recent flights; Starlink found in 3 of 21 Wi-Fi checks since Jan 2, 2026 (last N54552, Jul 30, 2026).
Aircraft seen on UA661: Boeing 737-900ER, Airbus A320, Boeing 757-200, Boeing 737 MAX 9.