Southwest Airlines is currently in the rolling_out phase with a very high fleet coverage ratio of 86.2%, which normally would imply a high probability of Starlink availability on routes. However, perplexity-verified context and recent news confirm that as of mid-2026, Southwest has not yet equipped any aircraft with Starlink, with rollout expected to begin in summer 2026. There are zero observed flights with Starlink on the LAS->PIT route and no community sightings or recent news indicating early deployment. Given the rollout status and zero current equipment, the probability must be anchored to the empirical observation rate of 0.0, despite the high fleet coverage ratio, as the rollout has not started. Confidence in this estimate is high due to strong official announcements and lack of contradictory evidence.