United Airlines has installed Starlink on 53.4% of its fleet, with over 300 regional aircraft equipped and plans to reach 800 by end of 2026. However, there are no direct observations of Starlink on the GSP->IAD route, and recent news highlights initial mainline deployments primarily on other routes (e.g., EWR->LAS). Given the fleet coverage and rollout status, some aircraft on this route may have Starlink, but without direct route observations, the probability is anchored conservatively below fleet coverage, adjusted downward to 0.40 to reflect uncertainty and lack of direct sightings.

Last calculated May 21, 2026