Southwest Airlines is currently in the announced rollout phase for Starlink with zero aircraft equipped as of the latest data. The fleet coverage is high at 86.2%, but rollout status is 'rolling_out' with no confirmed Starlink-equipped flights observed on the LAS->ATL route or elsewhere. No recent news or community sightings support higher probability. Therefore, the probability is anchored at 0.0 reflecting current lack of deployment despite high fleet coverage potential.