Southwest Airlines operates flight WN921 between Baltimore (BWI) and Islip (ISP). This route is typically operated by a 737-800. Based on Southwest Airlines' current Starlink rollout — 8 of 817 aircraft equipped (1% of the fleet) — we estimate a 95% probability that this specific flight is equipped with Starlink satellite WiFi.
Verified through a direct, dated sighting report for this specific flight.
Equipped
Fleet Size
Coverage
Score is based on Southwest Airlines's fleet-wide coverage: 8 of 817 aircraft are Starlink-equipped (1% fleet ratio). No aircraft-type-specific rollout data is recorded for this route, so the score reflects the fleet-wide average.
This is a high-probability Starlink route. The 737-800 operating this route is among the aircraft types confirmed as Starlink-equipped in Southwest Airlines' fleet, and Southwest Airlines has confirmed Starlink on 1% of its fleet (8 of 817 aircraft).
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Prediction (95%) reflects the chance this specific flight has Starlink. Verified through a direct, dated sighting report for this specific flight. B738 coverage (4%) shows how many B738 aircraft have Starlink.
WN921 is used on more than one route, and the aircraft assigned isn't always the same. The score above reflects the best-equipped version, so your flight may differ.
Aircraft recently seen operating this flight
Check the Starlink probability on other Southwest Airlines routes.
We estimate a 95% probability that flight WN921 has Starlink WiFi. Verified through a direct, dated sighting report for this specific flight. Southwest Airlines is actively rolling out Starlink across its fleet. Check back as our data updates when new aircraft are confirmed.
Southwest Airlines uses Starlink satellite WiFi on equipped aircraft. Flight WN921 operates BWI to ISP. Our Starlink probability score for this flight is 95%, based on Southwest Airlines' fleet rollout data and confirmed tail numbers.
The most reliable method is to check your specific tail number after check-in — your boarding pass or the Southwest Airlines app may show the aircraft registration. You can then search that tail number on StarlinkFlights.com. Alternatively, our probability score for flight WN921 is 95% based on current fleet data.
The prediction for WN921 is based on the aircraft actually observed or claimed to operate this route, not a generic fleet-wide guess. Verified through a direct, dated sighting report for this specific flight. A confirmed, dated passenger sighting for this specific flight can override this when one exists.
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.
