About 44% Starlink odds, weighted to recent UA1816 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 144 recent flights; Starlink found in 16 of 32 Wi-Fi checks since Jan 2, 2026 (last N76522, Sep 27, 2026).
Aircraft seen on UA1816: Boeing 737-800, Airbus A320, Airbus A319, Boeing 737.