UAL540

For travellers

Departure · Denver (DEN)

Gate B29

Scheduled 30 Sep 17:45 · Departed 30 Sep 17:45

Board status: Off block

Airborne since 30 Sep 16:29 (ADS-B)

Board data from den, updated 3162 min ago; times local to each airport.

Flight

Status

Completed

Arrival confirmed via

ADS-B (callsign change)

Departure

Denver International Airport (DEN) — Denver, United States

Scheduled departure

2026-09-30 23:45 UTC

Departed

2026-09-30 22:29 UTC

Arrival

Denver International Airport (DEN) — Denver, United States

Also flies as

UA259

Distance flown

2 km

Approach distance

2 km

Aircraft

Registration

N14518

Type

Airbus A321 Neo

Seats

200 total (20 Business, 180 Economy)

Altitude & speed

Max ground speed

30 kt

Tracked

1h 16m · 2 km

Ground speed (kt, max 30)

From the ADS-B positions we received; time since the first fix. A dashed stretch is a gap in reception, bridged by a straight line.

Route map

Airline

United Airlines (UAL)

Latest flights

Departed	Flight	Route	Reg	Aircraft	Status	Distance
2026-10-03 20:07 UTC	UAL540	SFO → DEN San Francisco → Denver	N14553	Airbus A321 Neo	In progress	~1553 km est.
2026-10-03 03:46 UTC	UAL540	DEN → SAN Denver → San Diego	N14530	Airbus A321 Neo	Completed	1415 km
2026-10-02 17:26 UTC	UAL540	SAN → ORD San Diego → Chicago	N57416	Boeing 737 MAX 9	Completed	2918 km
2026-10-02 01:49 UTC	UAL540	DEN → SAN Denver → San Diego	N34574	Airbus A321 Neo	Completed	1416 km
2026-10-01 19:38 UTC	UAL540	SFO → DEN San Francisco → Denver	N24510	Airbus A321 Neo	Completed	1760 km
2026-10-01 05:35 UTC	UAL540	SAN → ORD San Diego → Chicago	N17589	Boeing 737 MAX 9	Completed	2971 km
2026-10-01 01:07 UTC	UAL540	DEN → SAN Denver → San Diego	N14548	Airbus A321 Neo	Completed	1404 km
2026-09-30 22:29 UTC	UAL540	DEN → DEN Denver → Denver	N14518	Airbus A321 Neo	Completed	~3 km est. (2 km recorded)
2026-09-30 19:53 UTC	UAL540	SFO → DEN San Francisco → Denver	N14518	Airbus A321 Neo	Completed	1736 km
2026-09-30 05:31 UTC	UAL540	SAN → ORD San Diego → Chicago	N77552	Boeing 737 MAX 9	Completed	2949 km
2026-09-30 01:08 UTC	UAL540	DEN → SAN Denver → San Diego	N14540	Airbus A321 Neo	Completed	1411 km
2026-09-29 19:47 UTC	UAL540	SFO → DEN San Francisco → Denver	N14530	Airbus A321 Neo	Completed	1657 km
2026-09-29 05:30 UTC	UAL540	SAN → ORD San Diego → Chicago	N77580	Boeing 737 MAX 9	Completed	2869 km
2026-09-29 02:10 UTC	UAL540	DEN → SAN Denver → San Diego	N14507	Airbus A321 Neo	Completed	1394 km
2026-09-28 20:17 UTC	UAL540	SFO → DEN San Francisco → Denver	N24568	Airbus A321 Neo	Completed	1702 km
2026-09-28 05:49 UTC	UAL540	SAN → ORD San Diego → Chicago	N37535	Boeing 737 MAX 9	Completed	2881 km
2026-09-28 02:01 UTC	UAL540	DEN → SAN Denver → San Diego	N44501	Airbus A321 Neo	Completed	1397 km
2026-09-27 20:41 UTC	UAL540	SFO → DEN San Francisco → Denver	N14554	Airbus A321 Neo	Completed	1689 km
2026-09-27 05:28 UTC	UAL540	SAN → ORD San Diego → Chicago	N17422	Boeing 737 MAX 9	Completed	2947 km
2026-09-27 01:17 UTC	UAL540	DEN → SAN Denver → San Diego	N14511	Airbus A321 Neo	Completed	1408 km
2026-09-26 19:46 UTC	UAL540	SFO → DEN San Francisco → Denver	N14504	Airbus A321 Neo	Completed	1664 km
2026-09-25 19:55 UTC	UAL540	SFO → DEN San Francisco → Denver	N14566	Airbus A321 Neo	Completed	1924 km
2026-09-25 05:42 UTC	UAL540	SAN → ORD San Diego → Chicago	N17406	Boeing 737 MAX 9	Completed	2845 km
2026-09-25 02:28 UTC	UAL540	DEN → SAN Denver → San Diego	N14518	Airbus A321 Neo	Completed	1415 km
2026-09-24 20:17 UTC	UAL540	SFO → DEN San Francisco → Denver	N34535	Airbus A321 Neo	Completed	1662 km
2026-09-24 01:15 UTC	UAL540	DEN → SAN Denver → San Diego	N14529	Airbus A321 Neo	Completed	1420 km
2026-09-23 20:02 UTC	UAL540	SFO → DEN San Francisco → Denver	N14565	Airbus A321 Neo	Completed	1754 km
2026-09-23 01:10 UTC	UAL540	DEN → SAN Denver → San Diego	N24537	Airbus A321 Neo	Completed	1415 km
2026-09-22 20:39 UTC	UAL540	SFO → DEN San Francisco → Denver	N24508	Airbus A321 Neo	Completed	1832 km
2026-09-22 01:39 UTC	UAL540	DEN → SAN Denver → San Diego	N14502	Airbus A321 Neo	Completed	1407 km
2026-09-21 19:57 UTC	UAL540	SFO → DEN San Francisco → Denver	N24555	Airbus A321 Neo	Completed	1694 km
2026-09-21 01:48 UTC	UAL540	DEN → SAN Denver → San Diego	N34562	Airbus A321 Neo	Completed	1417 km
2026-09-20 20:02 UTC	UAL540	SFO → DEN San Francisco → Denver	N17443	Boeing 737 MAX 9	Completed	1661 km
2026-09-20 01:23 UTC	UAL540	DEN → SAN Denver → San Diego	N24516	Airbus A321 Neo	Completed	1439 km
2026-09-19 19:42 UTC	UAL540	SFO → DEN San Francisco → Denver	N14527	Airbus A321 Neo	Completed	1936 km
2026-09-19 01:58 UTC	UAL540	DEN → SAN Denver → San Diego	N14553	Airbus A321 Neo	Completed	1446 km
2026-09-18 20:32 UTC	UAL540	SFO → DEN San Francisco → Denver	N14576	Airbus A321 Neo	Completed	2320 km
2026-09-18 02:54 UTC	UAL540	DEN → SAN Denver → San Diego	N24514	Airbus A321 Neo	Completed	1445 km
2026-09-17 19:46 UTC	UAL540	SFO → DEN San Francisco → Denver	N34562	Airbus A321 Neo	Completed	1741 km
2026-09-17 01:17 UTC	UAL540	DEN → SAN Denver → San Diego	N14503	Airbus A321 Neo	Completed	1721 km
2026-09-16 19:40 UTC	UAL540	SFO → DEN San Francisco → Denver	N24513	Airbus A321 Neo	Completed	1811 km
2026-09-16 01:08 UTC	UAL540	DEN → SAN Denver → San Diego	N14553	Airbus A321 Neo	Completed	1748 km
2026-09-15 20:18 UTC	UAL540	SFO → DEN San Francisco → Denver	N14504	Airbus A321 Neo	Completed	2005 km
2026-09-15 02:19 UTC	UAL540	DEN → SAN Denver → San Diego	N14548	Airbus A321 Neo	Completed	1442 km
2026-09-14 19:33 UTC	UAL540	SFO → DEN San Francisco → Denver	N34551	Airbus A321 Neo	Completed	1864 km
2026-09-14 02:42 UTC	UAL540	DEN → SAN Denver → San Diego	N14569	Airbus A321 Neo	Completed	1476 km
2026-09-13 19:32 UTC	UAL540	SFO → DEN San Francisco → Denver	N14534	Airbus A321 Neo	Completed	1743 km
2026-09-13 01:05 UTC	UAL540	DEN → SAN Denver → San Diego	N54538	Airbus A321 Neo	Completed	1467 km
2026-09-12 20:27 UTC	UAL540	SFO → DEN San Francisco → Denver	N94556	Airbus A321 Neo	Completed	1792 km
2026-09-12 02:18 UTC	UAL540	DEN → SAN Denver → San Diego	N54525	Airbus A321 Neo	Completed	1458 km