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 zero direct observations of Starlink on the IAD->SCE route, and this route is not specifically mentioned in recent news or sightings. Given the fleet coverage and rollout status, the probability is anchored near the fleet coverage but slightly reduced due to lack of direct route observations. Recent news confirms mainline Starlink flights started only recently and primarily on other routes, so a conservative estimate is warranted.

Last calculated May 21, 2026