United Airlines has an installed rollout status with a fleet coverage of 36.7%, which sets a floor for the probability on this route despite zero direct observations. Although no flights on JST->IAD have confirmed Starlink tails, recent high-confidence news confirms active deployment on mainline and regional fleets, including inaugural flights with Starlink on Boeing 737-800s. Community sightings also confirm completion of regional US routes rollout. Given the zero observation rate but strong fleet coverage and rollout status, the probability is anchored at the fleet coverage floor of 0.367, rounded to 0.37, reflecting likely presence but acknowledging lack of direct route observations.

Last calculated May 24, 2026