Southwest Airlines currently has a rollout status of 'rolling_out' with a high fleet coverage ratio of 86.2%, which would normally suggest a high probability of Starlink presence 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 STL->TPA route. Given the announced rollout is planned for summer 2026 and no recent news or sightings support current deployment, the probability is anchored at 0.0, reflecting the current lack of evidence despite the high fleet coverage ratio.