Question 1

Does flight WN4576 have Starlink WiFi?

Accepted Answer

Based on our data, flight WN4576 operated by Southwest Airlines has a 48% probability of having Starlink WiFi based on based on route-level starlink data (48% likelihood). Check back closer to your departure date for updated aircraft assignments.

Question 2

How accurate is the Starlink prediction for WN4576?

Accepted Answer

The prediction for WN4576 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 48% score shown.

Question 3

Can I guarantee Starlink on flight WN4576?

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
May 21, 2026	N903WN	ONT → LAS
May 20, 2026	N7852A	ONT → LAS
May 14, 2026	N249WN	ONT → LAS
May 13, 2026	N249WN	ONT → LAS
May 6, 2026	N470WN	ONT → LAS
May 2, 2026	N8899H	ONT → LAS
Apr 30, 2026	N7724A	ONT → LAS
Apr 29, 2026	N246LV	ONT → LAS
Apr 22, 2026	N261WN	ONT → LAS
Apr 16, 2026	N227WN	ONT → LAS

Does Flight WN4576 Have Starlink WiFi?

Starlink WiFi Prediction

Confidence Factors

Route Details

Recent Observations