Southwest Airlines is currently in the announced rollout phase for Starlink with zero aircraft equipped as of the latest data. Despite a high fleet coverage ratio reported (86.2%), this figure is inconsistent with the verified context indicating zero equipped aircraft and a rollout start planned for summer 2026. No observations or community sightings on the DTW->LAS route support Starlink presence. Given the rollout status 'rolling_out' but with no actual installations yet, the probability remains anchored at zero, reflecting the current lack of equipped aircraft and absence of route-specific evidence.