United Airlines has an installed rollout status with a fleet coverage of 36.7%, which sets a floor for the probability at 0.367. Although there are zero observed flights with confirmed Starlink on the MIA-FLL route, this is likely due to incomplete flight tracking data rather than absence of Starlink. Recent high-confidence news confirms Starlink installation on mainline and regional fleets, including first flights in late 2025 and early 2026. Community sightings confirm rollout completion on regional US routes. Given the fleet coverage below 50% and zero observations, the probability is anchored at the fleet ratio floor (0.367) without exceeding it by more than 0.10, resulting in a conservative estimate of 0.37. Confidence is medium due to lack of direct route observations but supported by multiple indirect evidence sources.