United Airlines has a fully deployed Starlink rollout with 95.6% fleet coverage, which sets a strong floor for route-specific probability despite zero direct observations on the SAT->IAD route. The zero observations likely reflect incomplete flight tracking data rather than absence of Starlink. Recent high-confidence news confirms Starlink installation on mainline aircraft including Boeing 737-800s, and community sightings confirm completion of regional fleet rollout. Given the airline's near-complete fleet coverage and rollout status, the probability is anchored at the fleet coverage ratio of 95.6%, consistent with critical scoring rules and global context.

Last calculated May 22, 2026