United Airlines operates flight YV3989 between San Antonio (SAT) and Houston (IAH). This route is typically operated by an E175. Based on United Airlines' current Starlink rollout — 665 of 1,575 aircraft equipped (42% of the fleet) — whether this specific flight is equipped depends on the aircraft assigned on the day.
This flight number belongs to another carrier, so we don't rate it here.
Equipped
Fleet Size
Coverage
Source: United's Starlink tracker, as of Oct 29, 2026
31 aircraft independently verified
This flight number belongs to another carrier, so we don't rate it here.
This flight number belongs to another carrier, so we don't rate it. Check the operating airline's page instead.
No spam. One email when coverage on SAT→IAH updates.
Rating: Partner flight, not scored. This is our rating that this specific flight has Starlink. This flight number belongs to another carrier, so we don't rate it here.
Check the Starlink rating on other United Airlines routes.
Flight YV3989 carries another carrier's flight number, so we don't rate it here. Check the operating airline's page for its Starlink coverage.
United Airlines uses Starlink satellite WiFi on equipped aircraft. Flight YV3989 operates SAT to IAH. We track United Airlines' fleet rollout and confirmed tail numbers to estimate coverage as data accumulates.
The most reliable method is to check your specific tail number after check-in — your boarding pass or the United Airlines app may show the aircraft registration. You can then search that tail number on StarlinkFlights.com.
The aircraft that operate YV3989 have not been checked for Starlink, so no confident score can be produced yet. This is not the same as confirming they don't have it — check back as more aircraft are confirmed.
No prediction can guarantee a specific aircraft. Airlines perform last-minute equipment swaps for maintenance, operational needs, or schedule changes — meaning a Starlink-equipped tail can be replaced by a non-equipped one on the day. A rating of very likely means historical data strongly favors Starlink on this flight, but it is not a guarantee. For the most reliable information, check the airline's gate display or app on the day of departure.
