Southwest Airlines is currently in the rolling_out phase with a high fleet coverage ratio of 86.2%, but as of the latest data (2026-05-20), no aircraft are equipped yet and no Starlink observations exist on the HDN->DAL route. The rollout is announced to begin in summer 2026, so no current installations or confirmed sightings support a higher probability. Given zero observations and no equipped aircraft, the probability remains at 0.0 despite the high fleet coverage ratio, as the rollout has not started. Confidence is medium due to the announced status and fleet data.