UA1 United Airlines - Flight Status
Below, you can find details about United Airlines flight UA1, which currently operates between the airports of San Francisco - San Francisco International Airport (Airport Code SFO) and Singapore - Singapore Changi Airport (Airport Code SIN).
This flight data pertains specifically to the flight's details for Monday, December 22, 2025.
Table of contents:
Flight Status Additional Information Alternative Flights Punctuality and delays Last Past Flights UA1
Flight Status Additional Information Alternative Flights Punctuality and delays Last Past Flights UA1
UA1 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
UA1 United Airlines to Singapore
Scheduled - On-time
Flight Status for Monday December 22, 2025
This flight was also scheduled for Yesterday (December 21, 2025). See it here
This flight is also scheduled for Tomorrow (December 23, 2025). See it here
Scheduled - On-time
Flight Status for Monday December 22, 2025
Departure
San Francisco (SFO)
December 22, 2025
San Francisco International Airport
Estimated Departure Time:
10:35 pm
Terminal:
IN - International
Gate:
-
Scheduled Departure Time: 10:35 pm
Arrival
Singapore (SIN)
December 24, 2025
Singapore Changi Airport
Estimated Arrival Time:
08:00 am
Terminal:
2
Gate:
-
Scheduled Arrival Time: 08:00 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 UA1?
The flight UA1 is scheduled to flight on daily basis.
Which is the distance of flight UA1?
The distance between the two airports is 8441 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: 2025-12-22 08:17:24
Current Time in Singapore: 2025-12-23 00:17:24
The flight UA1 is scheduled to flight on daily basis.
Which is the distance of flight UA1?
The distance between the two airports is 8441 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: 2025-12-22 08:17:24
Current Time in Singapore: 2025-12-23 00:17:24
Alternative Flights
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 UA1
Date
Departure
Arrival
Duration
Aircraft
Status
Tuesday
23 December
23 December
10:36 pm
San Francisco (SFO)
San Francisco (SFO)
08:36 am
Singapore (SIN)
Singapore (SIN)
18h 00min
Boeing 787-9
Boeing 787-9
- Delayed
Monday
22 December
22 December
12:04 am
San Francisco (SFO)
San Francisco (SFO)
09:16 am
Singapore (SIN)
Singapore (SIN)
17h 12min
Boeing 787-9
Boeing 787-9
- Delayed
Sunday
21 December
21 December
10:39 pm
San Francisco (SFO)
San Francisco (SFO)
07:52 am
Singapore (SIN)
Singapore (SIN)
17h 13min
Boeing 787-9
Boeing 787-9
- On-time
Saturday
20 December
20 December
10:35 pm
San Francisco (SFO)
San Francisco (SFO)
08:06 am
Singapore (SIN)
Singapore (SIN)
17h 31min
Boeing 787-9
Boeing 787-9
- On-time
Friday
19 December
19 December
11:08 pm
San Francisco (SFO)
San Francisco (SFO)
08:33 am
Singapore (SIN)
Singapore (SIN)
17h 25min
Boeing 787-9
Boeing 787-9
- Delayed
Thursday
18 December
18 December
10:44 pm
San Francisco (SFO)
San Francisco (SFO)
08:35 am
Singapore (SIN)
Singapore (SIN)
17h 51min
Boeing 787-9
Boeing 787-9
- Delayed
Wednesday
17 December
17 December
11:36 pm
San Francisco (SFO)
San Francisco (SFO)
09:22 am
Singapore (SIN)
Singapore (SIN)
17h 46min
Boeing 787-9
Boeing 787-9
- Delayed
Tuesday
16 December
16 December
11:05 pm
San Francisco (SFO)
San Francisco (SFO)
08:06 am
Singapore (SIN)
Singapore (SIN)
17h 01min
Boeing 787-9
Boeing 787-9
- On-time
Monday
15 December
15 December
10:30 pm
San Francisco (SFO)
San Francisco (SFO)
07:44 am
Singapore (SIN)
Singapore (SIN)
17h 14min
Boeing 787-9
Boeing 787-9
- On-time
Sunday
14 December
14 December
10:38 pm
San Francisco (SFO)
San Francisco (SFO)
07:51 am
Singapore (SIN)
Singapore (SIN)
17h 13min
Boeing 787-9
Boeing 787-9
- On-time
