Question 1

Does flight UA5643 have Starlink WiFi?

Accepted Answer

Our confidence engine rates UA5643 at 44% probability of having Starlink WiFi. This score reflects fleet coverage, route data, and historical observations. Check back closer to your departure date for updated aircraft assignments.

Question 2

How accurate is the Starlink prediction for UA5643?

Accepted Answer

The prediction for UA5643 is generated by a five-factor confidence engine: (1) fleet coverage ratio — what percentage of the airline's fleet is Starlink-equipped; (2) aircraft type match — whether the typical aircraft on this route carries Starlink; (3) verified aircraft sightings — confirmed Starlink observations on the specific aircraft operating this route; (4) live flight observation data — aircraft assignments captured from our flight tracking system; (5) airline rollout status — whether installation is active, rolling out, or only announced. These factors are combined and weighted to produce the 44% score shown.

Question 3

Can I guarantee Starlink on flight UA5643?

Accepted Answer

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 score of 80% or above means historical data strongly favours 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.

Date	Tail Number	Route
Mar 4, 2026	N876AS	DEN → SAF
Mar 3, 2026	N570GJ	DEN → SAF

UA5643

Starlink WiFi Prediction

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