United Airlines operates flight UA1977 between Houston (IAH) and Boston (BOS). This route is typically operated by a 737-900. Based on United Airlines' current Starlink rollout — 665 of 1,575 aircraft equipped (42% of the fleet) — we estimate a 43% probability that this specific flight is equipped with Starlink satellite WiFi.
Based on the airline's published installation figures for the aircraft types observed on this flight: B739 12 flights at 63% equipped; B39M 6 flights at 24% equipped; A319 2 flights at 0% equipped and 1 more. Weighted by observed flights, the expected share of equipped aircraft is 43%.
Equipped
Fleet Size
Coverage
This route is predominantly operated by B739 aircraft. The score reflects United Airlines's confirmed Starlink rollout status for the B739 fleet specifically, not the airline's fleet-wide average.
This is a moderate-probability route. United Airlines is actively rolling out Starlink — 42% of the fleet is equipped so far — but not every aircraft operating this route is confirmed yet, so coverage on any given departure is not guaranteed.
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Prediction (43%) reflects the chance this specific flight has Starlink. Based on the airline's published installation figures for the aircraft types observed on this flight: B739 12 flights at 63% equipped; B39M 6 flights at 24% equipped; A319 2 flights at 0% equipped and 1 more. Weighted by observed flights, the expected share of equipped aircraft is 43%. B739 coverage (43%) shows how many B739 aircraft have Starlink.
Aircraft recently seen operating this flight
| Date | Tail Number | Route |
|---|---|---|
| Feb 22, 2026 | N27271 | IAH → BOS |
Check the Starlink probability on other United Airlines routes.
We estimate a 43% probability that flight UA1977 has Starlink WiFi. Based on the airline's published installation figures for the aircraft types observed on this flight: B739 12 flights at 63% equipped; B39M 6 flights at 24% equipped; A319 2 flights at 0% equipped and 1 more. Weighted by observed flights, the expected share of equipped aircraft is 43%. United Airlines is actively rolling out Starlink across its fleet. Check back as our data updates when new aircraft are confirmed.
United Airlines uses Starlink satellite WiFi on equipped aircraft. Flight UA1977 operates IAH to BOS. Our Starlink probability score for this flight is 43%, based on United 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 United Airlines app may show the aircraft registration. You can then search that tail number on StarlinkFlights.com. Alternatively, our probability score for flight UA1977 is 43% based on current fleet data.
The prediction for UA1977 is based on the aircraft actually observed or claimed to operate this route, not a generic fleet-wide guess. Based on the airline's published installation figures for the aircraft types observed on this flight: B739 12 flights at 63% equipped; B39M 6 flights at 24% equipped; A319 2 flights at 0% equipped and 1 more. Weighted by observed flights, the expected share of equipped aircraft is 43%. 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.
