United Airlines has an installed rollout status with a fleet coverage of 51.9%, which sets a minimum probability floor of 0.519 for all routes, including IAD->MLB. Although there are zero direct observations on this route, the fleet coverage and multiple high-confidence news reports about United's Starlink installation on over 300 regional aircraft and ongoing mainline retrofits support a probability slightly above the fleet ratio. Community sightings confirm completion of regional fleet rollout, reinforcing the likelihood. Given the lack of direct route observations, the score is conservatively anchored just above the fleet ratio at 0.52.

Last calculated May 23, 2026