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 that level. However, perplexity-verified context and recent news confirm that as of mid-2026, Southwest has not yet equipped any aircraft with Starlink, and there are zero confirmed observations or sightings on this route. Given the rollout is announced to begin in summer 2026 and no aircraft are currently equipped, the probability is anchored conservatively near zero but elevated slightly to 0.30 to reflect the imminent rollout and high fleet coverage, treating fleet ratio as a floor but not exceeding the empirical observation rate by more than 0.10 without direct evidence.