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 indicates that as of May 2026, Southwest has not yet equipped any aircraft with Starlink, and no confirmed observations or community sightings exist on the BUF->RSW route. There is also no recent news indicating active deployment on this route. Given these factors, the probability is anchored to the empirical observation rate of 0.0%, reflecting the current lack of equipped aircraft despite the high fleet coverage ratio. The confidence in this estimate is medium due to the announced rollout status and high fleet coverage, which suggest future increases.