How do I check if UA3891 has Starlink?

Pick your travel date above. United Airlines assigns the aircraft about 2 days before departure, and the answer then comes from that aircraft. Before that, you get Starlink odds from recent UA3891 flights, weighted to the latest.

How accurate is this?

We check each aircraft's Wi-Fi on united.com and match aircraft to flights using flight schedule data. Aircraft can be swapped before departure, so check again the day before you fly.

Does UA3891 have Starlink Wi-Fi?

About 48% Starlink odds, weighted to recent UA3891 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.

How the check works · Is Starlink Wi-Fi free?

UA3891 Starlink history

Based on 22 recent flights; Starlink found in 6 of 10 Wi-Fi checks since Jun 9, 2026 (last N37253, Sep 27, 2026).

Aircraft seen on UA3891: Boeing 737-900ER, Boeing 737-800, Airbus A321neo.

Routes UA3891 flies

AMA → IAH · 1h 51m
Seen 3 times · last seen Sep 23, 2026
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RFD → LAX · 4h 17m
Seen 2 times · last seen Sep 27, 2026
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IAB → IAH · 1h 40m
Seen 2 times · last seen Oct 2, 2026
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MLB → ORD · 2h 46m
Seen 2 times · last seen Sep 14, 2026
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Other AMA → IAH flights

UA4195

Other ways to check

Know your tail number? Search it on the homepage.
Shopping on Google Flights? The free Chrome extension marks United flights that have Starlink.
See every United Airlines aircraft on the fleet page.

Questions

How do I check if UA3891 has Starlink?: Pick your travel date above. United Airlines assigns the aircraft about 2 days before departure, and the answer then comes from that aircraft. Before that, you get Starlink odds from recent UA3891 flights, weighted to the latest.
How accurate is this?: We check each aircraft's Wi-Fi on united.com and match aircraft to flights using flight schedule data. Aircraft can be swapped before departure, so check again the day before you fly.