About 29% Starlink odds, weighted to recent UA1321 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 86 recent flights; Starlink found in 5 of 20 Wi-Fi checks since Feb 25, 2026 (last N68807, Sep 11, 2026).
Aircraft seen on UA1321: Boeing 737-900ER, Boeing 737-800, Boeing 737 MAX 8, Airbus A319.