United Airlines UA540 Flight Status
According to Trip.com real-time data, the UA540 flight operated by United Airlines on Jul 7, 2026 is scheduled to fly from San Francisco (SFO) to San Diego (SAN). The flight is expected to depart at 12:43 and land at 20:46 .
Mon, Jul 6
Tue, Jul 7
Wed, Jul 8
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Arrived
The flight has arrived 1m late
8h 3m
DEN
2h 5m
Check-in Counter
33-48
Boarding Gate
D14
Arrival Gate
43
Baggage
6
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Scheduled
Your flight will depart on time.
8h 3m
DEN
3h 34m
Check-in Counter
--
Boarding Gate
D12
Arrival Gate
50
Baggage
6
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Scheduled
Your flight will depart on time.
8h 3m
DEN
2h 45m
Check-in Counter
--
Boarding Gate
--
Arrival Gate
44
Baggage
6
Information provided by VariFlight.VariFlight. Please refer to airport announcements for the most up-to-date information. If this is not your flight, you can browse more options for flights from San Francisco to San Diego to find your schedule.
Track the Previous Flight Status: Scheduled
UA1506
|
Louisville (SDF) 
Los Angeles (LAX)
Los Angeles (LAX)Scheduled: 13:55
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UA540 Aircraft Details
Airbus A321neo
Punctuality (Departure)
23%
Punctuality (Arrival)
60%
Late on average
24 minutes
Age
--
Seats
--
Flight Distance
--
Economy
Premium Economy
Business
First
In-Flight Services
None
Unknown
Unknown
Unknown
Seat Information
--
Legroom
--
Seat width
--
Reclining Angle
--
Seat layout example
In-Flight Services
None
Unknown
Unknown
Unknown
Seat Information
--
Legroom
--
Seat width
--
Reclining Angle
--
Seat layout example
In-Flight Services
None
Unknown
Unknown
Unknown
Seat Information
--
Legroom
--
Seat width
--
Reclining Angle
--
Seat layout example
In-Flight Services
Meal included
Unknown
Unknown
Unknown
Seat Information
--
Legroom
--
Seat width
--
Reclining Angle
--
Seat layout example
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Recent Flight History for UA540
Trip.com historical records show that the last UA540 flight departed on Mon, Jul 6 from SFO at approximately 14:12. This flight is expected to arrrive in SAN at 20:47.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Thu, Jul 2 | San Francisco (SFO) | San Diego (SAN) | A21N | 13:36 | 22:09 | Arrived |
| Fri, Jul 3 | San Francisco (SFO) | San Diego (SAN) | A21N | 13:20 | 21:48 | Arrived |
| Sat, Jul 4 | San Francisco (SFO) | San Diego (SAN) | A21N | 13:02 | 20:30 | Arrived |
| Sun, Jul 5 | San Francisco (SFO) | San Diego (SAN) | A21N | 12:57 | 21:19 | Arrived |
| Mon, Jul 6 | San Francisco (SFO) | San Diego (SAN) | A21N | 14:12 | 20:47 | Arrived |
| Tue, Jul 7 | San Francisco (SFO) | San Diego (SAN) | A21N | 12:43 | 20:46 | Scheduled |
| Wed, Jul 8 | San Francisco (SFO) | San Diego (SAN) | A21N | 12:43 | 20:46 | Scheduled |
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UA540 On-Time Performance
Based on the average performance of this flight over the past 30 trips, the on-time departure rate of UA540 is 23% (Late on average 43 minutes), and the on-time arrival rate is 60% (Late on average 24 minutes).
On-Time Departures
Punctuality
23%
Late on average 43 minutes
Early
0%
On time
23%
30 mins late
73%
60 mins late
0%
90 mins late
3%
Cancelled
0%
On-Time Arrivals
Punctuality
60%
Late on average 24 minutes
Early
33%
On time
27%
30 mins late
20%
60 mins late
17%
90 mins late
3%
Cancelled
0%
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