United Airlines UA540 Flight Status
According to Trip.com real-time data, the UA540 flight operated by United Airlines on Mar 23, 2026 is scheduled to fly from Denver (DEN) to San Diego (SAN). The flight is expected to depart at 19:25 (local time in Denver, UTC-6) and arrive at 20:19 (local time in San Diego, UTC-7) .
Sun, Mar 22
Mon, Mar 23
Tue, Mar 24
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Arrived
The flight has arrived 5m late
2h 38m
Check-in Counter
7,8
Boarding Gate
B16
Arrival Gate
45
Baggage
6
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Scheduled
Your flight will depart on time.
2h 38m
Check-in Counter
7,8
Boarding Gate
B27
Arrival Gate
45
Baggage
--
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Scheduled
Your flight will depart on time.
2h 38m
Check-in Counter
7,8
Boarding Gate
--
Arrival Gate
43
Baggage
--
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Information provided by VariFlightVariFlight. For real-time updates, please check airport displays or contact your airline.
UA540 Aircraft Details
Airbus A321neo
Punctuality (Departure)
43%
Punctuality (Arrival)
80%
Late on average
8 minutes
Age
--
Seats
--
Flight Distance
--
Economy
Premium Economy
Business
First
In-Flight Services
None
Seatback entertainment system
Wi-Fi (additional charge)
USB port and power outlet
Seat Information
--
Legroom
--
Seat width
--
Reclining Angle
3-3
Seat layout example
In-Flight Services
None
Seatback entertainment system
Wi-Fi (additional charge)
USB port and power outlet
Seat Information
--
Legroom
--
Seat width
--
Reclining Angle
3-3
Seat layout example
In-Flight Services
Snacks
Unknown
Unknown
Unknown
Seat Information
--
Legroom
--
Seat width
--
Reclining Angle
--
Seat layout example
In-Flight Services
Snacks
Seatback entertainment system
Wi-Fi (additional charge)
USB port and power outlet
Seat Information
--
Legroom
--
Seat width
--
Reclining Angle
2-2
Seat layout example
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Flight History for UA540
Trip.com historical records show that the last UA540 flight departed on Sun, Mar 22 from DEN at approximately 20:13. This flight is expected to arrrive in SAN at 21:08.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Wed, Mar 18 | Denver (DEN) | San Diego (SAN) | A21N | 19:36 | 20:30 | Arrived |
| Thu, Mar 19 | Denver (DEN) | San Diego (SAN) | A21N | 19:42 | 20:38 | Arrived |
| Fri, Mar 20 | Denver (DEN) | San Diego (SAN) | A21N | 19:46 | 20:41 | Arrived |
| Sat, Mar 21 | Denver (DEN) | San Diego (SAN) | A21N | 19:41 | 20:39 | Arrived |
| Sun, Mar 22 | Denver (DEN) | San Diego (SAN) | A21N | 20:13 | 21:08 | Arrived |
| Mon, Mar 23 | Denver (DEN) | San Diego (SAN) | A21N | 19:25 | 20:19 | Scheduled |
| Tue, Mar 24 | Denver (DEN) | San Diego (SAN) | A21N | 19:25 | 21:03 | Scheduled |
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UA540 On-Time Performance
Based on the average performance of this flight over the last 30 trips, the on-time departure rate of UA540 is 43% (Late on average 51 minutes), and the on-time arrival rate is 80% (Late on average 8 minutes).
On-Time Departures
Punctuality
43%
Late on average 51 minutes
Early
0%
On time
43%
30 mins late
33%
60 mins late
10%
90 mins late
13%
Cancelled
0%
On-Time Arrivals
Punctuality
80%
Late on average 8 minutes
Early
67%
On time
13%
30 mins late
7%
60 mins late
3%
90 mins late
10%
Cancelled
0%
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Arrival Info: San Diego Weather & Current Time
Mostly clear
|
14°C - 23°C
Weather forecast for your arrival day
-1 hour time difference
Time on arrival: Denver 22:03| San Diego 21:03
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