United Airlines has an installed rollout status with a fleet coverage of 51.9%, which sets a minimum probability floor of 0.519 for all routes, including EWR->SAT. Although there are zero direct observations on this route, this is likely due to incomplete flight tracking data rather than absence of Starlink. Recent high-confidence news confirms Starlink installation on mainline United aircraft, including inaugural flights from Newark (EWR) with Starlink WiFi. Community sightings confirm completion of rollout on 300+ regional aircraft. Given the lack of direct route observations but strong fleet and news evidence, the probability is anchored at fleet coverage (0.519) and slightly rounded up to 0.52 to reflect recent positive news without exceeding the 0.10 margin above fleet ratio.

Last calculated May 23, 2026