Southwest Airlines is currently in the rollout phase for Starlink with a high fleet coverage ratio of 86.2%, but no aircraft are yet equipped as of the latest verified context. There are zero observed flights with Starlink on the PVD->MDW route and no recent news or community sightings to suggest active deployment. Given the rollout status 'rolling_out' and fleet coverage above 0.30, the probability is anchored to the fleet coverage floor but adjusted downward to reflect the current lack of equipped aircraft and observations, resulting in a conservative estimate of 0.30.