Southwest Airlines currently has a high fleet coverage ratio of 86.2%, which would normally imply a high probability of Starlink availability on routes. However, the rollout status is 'rolling_out' with zero aircraft currently equipped, and no confirmed Starlink observations or community sightings on the TUL->MCO route. Additionally, perplexity-verified context indicates zero equipped aircraft as of May 2026, with rollout starting in summer 2026. Given these factors, the probability must be anchored to the empirical observation rate of 0.0, as no evidence supports a higher likelihood at this time.