Southwest Airlines is currently in rollout status with a high fleet coverage ratio of 86.2%, which would normally anchor the probability near this level. However, perplexity-verified context indicates zero aircraft currently equipped, with rollout starting summer 2026 and no confirmed Starlink flights observed on this route. No recent news or community sightings support higher probability. Given the rollout status and zero observations, a conservative low probability slightly above zero is assigned to reflect imminent rollout but no current deployment.