Southwest Airlines is currently in a rolling_out status with a high fleet coverage ratio of 86.2%, which normally would anchor the probability near that value. However, perplexity-verified context and recent news confirm that as of mid-2026, Southwest has not yet equipped any aircraft with Starlink, and there are zero confirmed observations on the SAT->RDU route. Given the rollout is planned for summer 2026 and no sightings or news indicate active deployment, the probability is anchored conservatively near the lower bound of 0.30 (fleet ratio floor for rolling_out airlines), reflecting the announced rollout but no current operational evidence.