UA821 United Airlines - Flight Status
Below, you can find details about United Airlines flight UA821, which currently operates between the airports of Hong Kong - Hong Kong International Airport (Airport Code HKG) and Los Angeles - Los Angeles International Airport (Airport Code LAX).
This flight data pertains specifically to the flight's details for Friday, October 31, 2025.
Table of contents:
Flight Status Additional Information Alternative Flights Punctuality and delays Last Past Flights UA821
Flight Status Additional Information Alternative Flights Punctuality and delays Last Past Flights UA821
UA821 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
UA821 United Airlines from Hong Kong
En Route - On-time
Flight Status for Friday October 31, 2025
This flight was also scheduled for Yesterday (October 30, 2025). See it here
This flight is also scheduled for Tomorrow (November 01, 2025). See it here
En Route - On-time
Flight Status for Friday October 31, 2025
Airline information
United Airlines
Equipment: Boeing 787-9
Departure
Hong Kong (HKG)
October 31, 2025
Hong Kong International Airport
Departed at:
10:32 pm
Terminal:
1
Gate:
61
Scheduled Departure Time: 10:45 pm
Arrival
Los Angeles (LAX)
October 31, 2025
Los Angeles International Airport
Estimated Arrival Time:
08:11 pm
Terminal:
7
Gate:
77
Scheduled Arrival Time: 08:25 pm
Disclaimer
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Additional Information
Which is the frequency of flight UA821?
The flight UA821 is scheduled to flight on Monday, Tuesday, Wednesday, Thursday, Friday, Sunday on a weekly basis.
Which is the distance of flight UA821?
The distance between the two airports is 7249 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 Hong Kong: 2025-11-01 02:28:48
Current Time in Los Angeles: 2025-10-31 11:28:48
The flight UA821 is scheduled to flight on Monday, Tuesday, Wednesday, Thursday, Friday, Sunday on a weekly basis.
Which is the distance of flight UA821?
The distance between the two airports is 7249 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 Hong Kong: 2025-11-01 02:28:48
Current Time in Los Angeles: 2025-10-31 11:28:48
Alternative Flights
The following airlines serves the same route between Hong Kong and Los Angeles:
AeroLogic
- Flight Number: 3S500. (On Time performance: 87 - Average Delay: 5 minutes)
Cathay Pacific
- Flight Number: CX880. (On Time performance: 85 - Average Delay: 7 minutes)
- Flight Number: CX882. (On Time performance: 66 - Average Delay: 18 minutes)
- Flight Number: CX884. (On Time performance: 72 - Average Delay: 23 minutes)
United Airlines
- Flight Number: UA153. (On Time performance: 82 - Average Delay: 18 minutes)
- Flight Number: UA802. (On Time performance: 81 - Average Delay: 7 minutes)
AeroLogic
- Flight Number: 3S500. (On Time performance: 87 - Average Delay: 5 minutes)
Cathay Pacific
- Flight Number: CX880. (On Time performance: 85 - Average Delay: 7 minutes)
- Flight Number: CX882. (On Time performance: 66 - Average Delay: 18 minutes)
- Flight Number: CX884. (On Time performance: 72 - Average Delay: 23 minutes)
United Airlines
- Flight Number: UA153. (On Time performance: 82 - Average Delay: 18 minutes)
- Flight Number: UA802. (On Time performance: 81 - Average Delay: 7 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 UA821
Date
Departure
Arrival
Duration
Aircraft
Status
Thursday
30 October
30 October
11:21 pm
Hong Kong (HKG)
Hong Kong (HKG)
08:35 pm
Los Angeles (LAX)
Los Angeles (LAX)
12h 14min
Boeing 787-9
Boeing 787-9
Landed - On-time
Wednesday
29 October
29 October
11:54 pm
()
()
09:38 pm
Los Angeles (LAX)
Los Angeles (LAX)
Boeing 787-9
Boeing 787-9
Landed - DIVERTED
Wednesday
29 October
29 October
11:34 pm
Hong Kong (HKG)
Hong Kong (HKG)
11:32 am
Hong Kong (HKG)
Hong Kong (HKG)
Boeing 787-9
Boeing 787-9
- DIVERTED
Tuesday
28 October
28 October
10:43 pm
Hong Kong (HKG)
Hong Kong (HKG)
07:44 pm
Los Angeles (LAX)
Los Angeles (LAX)
Boeing 787-9
Boeing 787-9
Landed - On-time
Monday
27 October
27 October
10:38 pm
Hong Kong (HKG)
Hong Kong (HKG)
07:43 pm
Los Angeles (LAX)
Los Angeles (LAX)
Boeing 787-9
Boeing 787-9
Landed - On-time
Sunday
26 October
26 October
11:03 pm
Hong Kong (HKG)
Hong Kong (HKG)
08:22 pm
Los Angeles (LAX)
Los Angeles (LAX)
Boeing 787-9
Boeing 787-9
Landed - On-time