Southwest Airlines is currently in the rolling_out phase with a high fleet coverage ratio of 86.2%, which would normally suggest a high probability of Starlink availability on routes. However, perplexity-verified context and recent data indicate that as of May 2026, Southwest has not yet equipped any aircraft with Starlink, and no confirmed observations or community sightings exist on the SDF->MDW route. Given the rollout is planned for summer 2026 and no recent news or sightings support current availability, the probability is anchored at 0.0, reflecting the current lack of equipped aircraft despite the high fleet coverage ratio.