About 20% Starlink odds, weighted to recent UA1817 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 54 recent flights; Starlink found in 1 of 8 Wi-Fi checks since Mar 13, 2026 (last N45440, Sep 23, 2026).
Aircraft seen on UA1817: Boeing 737-900ER, Boeing 737 MAX 9, Boeing 737.