Southwest Airlines is currently in a rolling_out status with a very high fleet coverage ratio of 86.2%, which would normally anchor the probability near that level. However, perplexity-verified context and recent data indicate that as of May 2026, Southwest has not yet equipped any aircraft with Starlink, and there are zero confirmed observations on this route. Given the announced rollout starting summer 2026 and no recent sightings or news, the probability is anchored conservatively near the lower bound of 0.30 (fleet ratio floor for rolling_out airlines) rather than the full fleet coverage. This reflects the high fleet coverage potential but current lack of empirical evidence on this route.