Southwest Airlines is currently in the announced rollout phase for Starlink with zero aircraft equipped as of the latest data. Although the fleet coverage is projected at 86.2%, this is based on future expectations rather than current installations. There are no confirmed Starlink observations on the PHL->TPA route, no recent news indicating active deployment, and no community sightings. Given the rollout status is 'rolling_out' but with zero current equipment, the probability must reflect the empirical observation rate anchored at zero. Therefore, the probability is set at 0.0 with low confidence due to the early rollout stage and lack of direct evidence.