UA877 United Airlines - Flight Status
Below, you can find details about United Airlines flight UA877, which currently operates between the airports of San Francisco - San Francisco International Airport (Airport Code SFO) and Hong Kong - Hong Kong International Airport (Airport Code HKG).
This flight data pertains specifically to the flight's details for Monday, December 29, 2025.
Table of contents:
Flight Status Additional Information Alternative Flights Punctuality and delays Last Past Flights UA877
Flight Status Additional Information Alternative Flights Punctuality and delays Last Past Flights UA877
UA877 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
UA877 United Airlines to Hong Kong
Scheduled - On-time
Flight Status for Monday December 29, 2025
This flight was also scheduled for Yesterday (December 28, 2025). See it here
This flight is also scheduled for Tomorrow (December 30, 2025). See it here
Scheduled - On-time
Flight Status for Monday December 29, 2025
Departure
San Francisco (SFO)
December 29, 2025
San Francisco International Airport
Estimated Departure Time:
11:15 pm
Terminal:
IN - International
Gate:
G7
Scheduled Departure Time: 11:15 pm
Arrival
Hong Kong (HKG)
December 31, 2025
Hong Kong International Airport
Estimated Arrival Time:
06:45 am
Terminal:
1
Gate:
-
Scheduled Arrival Time: 06:45 am
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.airport-sfo.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.
Additional Information
Which is the frequency of flight UA877?
The flight UA877 is scheduled to flight on daily basis.
Which is the distance of flight UA877?
The distance between the two airports is 6915 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 Francisco: 2025-12-29 10:32:10
Current Time in Hong Kong: 2025-12-30 02:32:10
The flight UA877 is scheduled to flight on daily basis.
Which is the distance of flight UA877?
The distance between the two airports is 6915 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 Francisco: 2025-12-29 10:32:10
Current Time in Hong Kong: 2025-12-30 02:32:10
Alternative Flights
The following airlines serves the same route between San Francisco and Hong Kong:
Cathay Pacific
- Flight Number: CX873.
- Flight Number: CX879. (On Time performance: 78 - Average Delay: 11 minutes)
- Flight Number: CX893.
United Airlines
- Flight Number: UA869. (On Time performance: 74 - Average Delay: -28 minutes)
Cathay Pacific
- Flight Number: CX873.
- Flight Number: CX879. (On Time performance: 78 - Average Delay: 11 minutes)
- Flight Number: CX893.
United Airlines
- Flight Number: UA869. (On Time performance: 74 - Average Delay: -28 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: We have gathered available data from last twelve closed months, spanning from December 02, 2024 to November 30, 2025. Next, you can observe the results broken down by month: number of flights analyzed, on-time performance per month, and average delay per month.
Note: We have excluded some months from the graph, since the quantity and quality of the data is not representative enough.
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: We have gathered available data from last twelve closed months, spanning from December 02, 2024 to November 30, 2025. Next, you can observe the results broken down by month: number of flights analyzed, on-time performance per month, and average delay per month.
Last Past Flights UA877
Date
Departure
Arrival
Duration
Aircraft
Status
Tuesday
30 December
30 December
11:42 pm
San Francisco (SFO)
San Francisco (SFO)
07:01 am
Hong Kong (HKG)
Hong Kong (HKG)
15h 19min
Boeing 777-300
Boeing 777-300
- Delayed
Monday
29 December
29 December
11:53 pm
San Francisco (SFO)
San Francisco (SFO)
06:45 am
Hong Kong (HKG)
Hong Kong (HKG)
14h 52min
Boeing 777-200
Boeing 777-200
Sunday
28 December
28 December
11:34 pm
San Francisco (SFO)
San Francisco (SFO)
06:43 am
Hong Kong (HKG)
Hong Kong (HKG)
15h 09min
Boeing 777-300
Boeing 777-300
- On-time
Saturday
27 December
27 December
11:45 pm
San Francisco (SFO)
San Francisco (SFO)
07:19 am
Hong Kong (HKG)
Hong Kong (HKG)
15h 34min
Boeing 777-300
Boeing 777-300
- Delayed
Friday
26 December
26 December
11:33 pm
San Francisco (SFO)
San Francisco (SFO)
07:17 am
Hong Kong (HKG)
Hong Kong (HKG)
15h 44min
Boeing 777-300
Boeing 777-300
- Delayed
Thursday
25 December
25 December
12:03 am
San Francisco (SFO)
San Francisco (SFO)
08:02 am
Hong Kong (HKG)
Hong Kong (HKG)
15h 59min
Boeing 777-300
Boeing 777-300
- Delayed
Wednesday
24 December
24 December
11:23 pm
San Francisco (SFO)
San Francisco (SFO)
07:07 am
Hong Kong (HKG)
Hong Kong (HKG)
15h 44min
Boeing 777-300
Boeing 777-300
- Delayed
Tuesday
23 December
23 December
12:08 am
San Francisco (SFO)
San Francisco (SFO)
07:04 am
Hong Kong (HKG)
Hong Kong (HKG)
14h 56min
Boeing 777-300
Boeing 777-300
- Delayed
Monday
22 December
22 December
01:29 am
San Francisco (SFO)
San Francisco (SFO)
08:56 am
Hong Kong (HKG)
Hong Kong (HKG)
15h 27min
Boeing 777-300
Boeing 777-300
- Delayed
Sunday
21 December
21 December
11:49 pm
San Francisco (SFO)
San Francisco (SFO)
07:24 am
Hong Kong (HKG)
Hong Kong (HKG)
15h 35min
Boeing 777-300
Boeing 777-300
- Delayed
