UA3991 had Starlink on 31 of 32 recent departures (97%). Pick a date below for a live answer.
Starlink-equipped aircraft on 31 of 32 recently verified UA3991 departures.
Most recent Starlink-equipped departure: Aug 24, 2026 on N85320.
Aircraft recently seen on UA3991: Embraer E-175.
Aircraft assignments can swap up to departure — check your exact date above.
See where the United Airlines rollout stands across every aircraft on the fleet page.
If you know your aircraft's tail number (found on your boarding pass or the aircraft fuselage), search for it on the homepage tracker. The search bar filters all Starlink-equipped aircraft instantly.
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Add to Chrome — FreePick your travel date in the form above. Within ~2 days of departure the answer comes from the actual aircraft assigned to UA3991; further out it's a probability from this flight number's recent aircraft history.
We verify Starlink status against united.com and cross-reference with flight schedules from aviation data providers. Aircraft assignments can change, so check closer to your departure date for the most accurate results.