Southwest Airlines is currently in a rolling_out status with a high fleet coverage ratio of 86.2%, which normally would anchor the probability near this level. However, there are zero observed flights with confirmed Starlink on the JAN->HOU route and no recent news or sightings to support a higher probability. The perplexity context indicates that as of mid-2026, no aircraft are yet equipped, with rollout expected to begin in summer 2026. Given these factors, the probability is conservatively anchored at 0.30, reflecting the fleet coverage floor for rolling_out airlines, but not exceeding it due to lack of direct observations or confirmed installations.