UA540 United Airlines - Flight Status
Below, you can find details about United Airlines flight UA540, which currently operates between the airports of San Diego - San Diego International Airport (Airport Code SAN) and Chicago - Chicago O'Hare International Airport (Airport Code ORD).
This flight data pertains specifically to the flight's details for Monday, September 28, 2026.
Table of contents:
Flight Status Codeshare Flights Additional Information Alternative Flights Punctuality and delays Last Past Flights UA540
Flight Status Codeshare Flights Additional Information Alternative Flights Punctuality and delays Last Past Flights UA540
UA540 On Time performance:
n/a
It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions. Flight Status
UA540 United Airlines to Chicago
Landed - On-time
Flight Status for Monday September 28, 2026
This flight is also scheduled for Today (September 29, 2026). See it here
Landed - On-time
Flight Status for Monday September 28, 2026
Airline information
United Airlines
Equipment: Boeing 737MAX 9 Passenger
Departure
San Diego (SAN)
September 28, 2026
San Diego International Airport
Departed at:
10:25 pm
Terminal:
2
Gate:
49
Scheduled Departure Time: 10:30 pm
Arrival
Chicago (ORD)
September 29, 2026
Chicago O'Hare International Airport
Arrived at:
04:02 am
Terminal:
1
Gate:
C25
Scheduled Arrival Time: 04:33 am
Baggage: 14
Disclaimer
The information displayed on this website is gathered from third-party providers with a wide reputation on the sector, which in turn obtain the information from the airlines. This data is provided only for informative purposes. www.san-diego-airport.com assumes no responsibility for loss or damage as a result of relying on information posted here. Please contact your airline to verify flight status.
Codeshare Flights
This flight is shared with other airlines, this means that these other flights are the same:
- AC4266 - Air Canada
Additional Information
Which is the frequency of flight UA540?
The flight UA540 is scheduled to flight on daily basis.
Which is the distance of flight UA540?
The distance between the two airports is 1721 miles.
Are the departure airport and arrival airport at the same Time Zone?
No, each airport is in a different timezone. The times shown above, are presented in the local time of each respective airport.
Current Time in San Diego: 2026-09-29 09:26:32
Current Time in Chicago: 2026-09-29 11:26:32
The flight UA540 is scheduled to flight on daily basis.
Which is the distance of flight UA540?
The distance between the two airports is 1721 miles.
Are the departure airport and arrival airport at the same Time Zone?
No, each airport is in a different timezone. The times shown above, are presented in the local time of each respective airport.
Current Time in San Diego: 2026-09-29 09:26:32
Current Time in Chicago: 2026-09-29 11:26:32
Alternative Flights
The following airlines serves the same route between San Diego and Chicago:
American Airlines
- Flight Number: AA2054. (On Time performance: 55 - Average Delay: 39 minutes)
- Flight Number: AA2065. (On Time performance: 98 - Average Delay: 60 minutes)
- Flight Number: AA2131. (On Time performance: 72 - Average Delay: 15 minutes)
- Flight Number: AA2343. (On Time performance: 72 - Average Delay: 23 minutes)
- Flight Number: AA3134. (On Time performance: 74 - Average Delay: 10 minutes)
- Flight Number: AA518. (On Time performance: 88 - Average Delay: 25 minutes)
Alaska Airlines
- Flight Number: AS1446. (On Time performance: 71 - Average Delay: 21 minutes)
- Flight Number: AS1478. (On Time performance: 43 - Average Delay: 32 minutes)
- Flight Number: AS1493. (On Time performance: 61 - Average Delay: 23 minutes)
United Airlines
- Flight Number: UA1016. (On Time performance: 79 - Average Delay: 20 minutes)
- Flight Number: UA1068.
- Flight Number: UA1100. (On Time performance: 93 - Average Delay: 36 minutes)
- Flight Number: UA1710. (On Time performance: 68 - Average Delay: 15 minutes)
- Flight Number: UA1779. (On Time performance: 52 - Average Delay: 25 minutes)
- Flight Number: UA2486. (On Time performance: 59 - Average Delay: 39 minutes)
American Airlines
- Flight Number: AA2054. (On Time performance: 55 - Average Delay: 39 minutes)
- Flight Number: AA2065. (On Time performance: 98 - Average Delay: 60 minutes)
- Flight Number: AA2131. (On Time performance: 72 - Average Delay: 15 minutes)
- Flight Number: AA2343. (On Time performance: 72 - Average Delay: 23 minutes)
- Flight Number: AA3134. (On Time performance: 74 - Average Delay: 10 minutes)
- Flight Number: AA518. (On Time performance: 88 - Average Delay: 25 minutes)
Alaska Airlines
- Flight Number: AS1446. (On Time performance: 71 - Average Delay: 21 minutes)
- Flight Number: AS1478. (On Time performance: 43 - Average Delay: 32 minutes)
- Flight Number: AS1493. (On Time performance: 61 - Average Delay: 23 minutes)
United Airlines
- Flight Number: UA1016. (On Time performance: 79 - Average Delay: 20 minutes)
- Flight Number: UA1068.
- Flight Number: UA1100. (On Time performance: 93 - Average Delay: 36 minutes)
- Flight Number: UA1710. (On Time performance: 68 - Average Delay: 15 minutes)
- Flight Number: UA1779. (On Time performance: 52 - Average Delay: 25 minutes)
- Flight Number: UA2486. (On Time performance: 59 - Average Delay: 39 minutes)
Punctuality and delays
It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions.
Delays analyzed by Week: It is not possible to calculate the On-Time Performance for this flight accurately by weekday due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Delays analyzed by Month: It is not possible to calculate the On-Time Performance for this flight accurately by month due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Delays analyzed by Week: It is not possible to calculate the On-Time Performance for this flight accurately by weekday due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Delays analyzed by Month: It is not possible to calculate the On-Time Performance for this flight accurately by month due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Last Past Flights UA540
Date
Departure
Arrival
Duration
Aircraft
Status
Tuesday
29 September
29 September
10:25 pm
San Diego (SAN)
San Diego (SAN)
04:02 am
Chicago (ORD)
Chicago (ORD)
03h 37min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Monday
28 September
28 September
10:30 pm
San Diego (SAN)
San Diego (SAN)
04:30 am
Chicago (ORD)
Chicago (ORD)
04h 00min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Sunday
27 September
27 September
10:26 pm
San Diego (SAN)
San Diego (SAN)
04:16 am
Chicago (ORD)
Chicago (ORD)
03h 50min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Saturday
26 September
26 September
10:31 pm
San Diego (SAN)
San Diego (SAN)
04:24 am
Chicago (ORD)
Chicago (ORD)
03h 53min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Friday
25 September
25 September
10:29 pm
San Diego (SAN)
San Diego (SAN)
04:25 am
Chicago (ORD)
Chicago (ORD)
03h 56min
Boeing 737MAX
Boeing 737MAX
Landed - On-time