Southwest Airlines currently has a fleet coverage of 86.2% but is still in the rollout phase with zero aircraft equipped as of the latest verified context. No flights on the FLL->HOU route have confirmed Starlink, and there are no recent news or community sightings supporting presence. Given the rollout status 'rolling_out' and zero equipped aircraft, the probability is anchored at 0.0 despite the high fleet coverage ratio, reflecting the current lack of deployment.