How do I check if UA540 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 UA540 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 UA540 have Starlink Wi-Fi?

About 71% Starlink odds, weighted to recent UA540 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.

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

Next UA540 departures

DEN → SAN · Sun, Oct 18, 7:10 PM MDT
N14553 · A321neo
Starlink
SFO → DEN · Mon, Oct 19, 12:35 PM PDT
N14523 · A321neo
Starlink
DEN → SAN · Mon, Oct 19, 7:10 PM MDT
N54570 · A321neo
Starlink
SFO → DEN · Tue, Oct 20, 12:35 PM PDT
N14529 · A321neo
Starlink

UA540 Starlink history

Based on 176 recent flights; Starlink found in 15 of 27 Wi-Fi checks since Feb 14, 2026 (last N14544, Oct 18, 2026).

Aircraft seen on UA540: Airbus A321neo, Boeing 737-900ER, Boeing 737 MAX 9, Boeing 737 MAX 8.

Routes UA540 flies

DEN → SAN · 2h 29m
Seen 866 times · last seen Oct 18, 2026
Plan this route
SFO → DEN · 2h 45m
Seen 807 times · last seen Oct 18, 2026
Plan this route
SAN → ORD · 4h 3m
Seen 25 times · last seen Oct 18, 2026
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RDU → SFO · 5h 42m
Seen 27 times · last seen Jun 19, 2026
Plan this route

Other DEN → SAN flights

UA1940 UA1281 UA1302 UA2395 UA1835 UA2309 UA3752 UA3751

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 UA540 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 UA540 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.