Southwest Airlines is currently in the announced rollout phase with zero aircraft equipped as of the latest data. Although the overall fleet coverage target is high (86.2%), no flights on the SJC->DAL route have been observed with Starlink, and there are no recent news or community sightings supporting active deployment. Given the rollout status is 'rolling_out' but actual equipped count is zero, the probability remains anchored at 0.0 with low confidence in any higher estimate until equipment begins appearing in service.