Although Southwest Airlines has a high overall fleet coverage ratio of 86.2%, the rollout status is 'rolling_out' with no aircraft currently equipped as of the latest verified context. There are zero observed flights with confirmed Starlink on the JAX->MDW route, no recent news updates, and no community sightings. The rollout is planned to begin in summer 2026, so current probability remains at zero. Given the lack of any confirmed equipment or observations, the probability is anchored at 0.0 despite the high fleet coverage ratio.