About 32% Starlink odds, weighted to recent UA5439 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.
Based on 71 recent flights; Starlink found in 4 of 12 Wi-Fi checks since Jun 20, 2026 (last N792SK, Sep 4, 2026).
Aircraft seen on UA5439: Bombardier CRJ-200, Bombardier CRJ-550, Embraer E-175.