About 20% Starlink odds, weighted to recent UA2239 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 153 recent flights; Starlink found in 11 of 31 Wi-Fi checks since Jan 16, 2026 (last N73251, Sep 27, 2026).
Aircraft seen on UA2239: Boeing 737 MAX 8, Boeing 737-800, Boeing 737 MAX 9, Airbus A319.