UA3964 United Airlines - Flight Status
Below, you can find details about United Airlines flight UA3964, which currently operates between the airports of Singapore - Singapore Changi Airport (Airport Code SIN) and San Francisco - San Francisco International Airport (Airport Code SFO).
This flight data pertains specifically to the flight's details for Wednesday, August 05, 2026.
Table of contents:
Flight Status Additional Information Alternative Flights Punctuality and delays Last Past Flights UA3964
Flight Status Additional Information Alternative Flights Punctuality and delays Last Past Flights UA3964
UA3964 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
UA3964 United Airlines to San Francisco
En Route - On-time
Delay: 4 minutes
Flight Status for Wednesday August 05, 2026
En Route - On-time
Delay: 4 minutes
Flight Status for Wednesday August 05, 2026
Airline information
United Airlines
Equipment: Boeing 787-9
Departure
Singapore (SIN)
August 05, 2026
Singapore Changi Airport
Departed at:
22:05
Terminal:
-
Gate:
F53
Scheduled Departure Time: 21:30
Arrival
San Francisco (SFO)
August 05, 2026
San Francisco International Airport
Estimated Arrival Time:
22:21
Terminal:
1
Gate:
B11
Scheduled Arrival Time: 22:17
Baggage: A7
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.singapore-airport.net 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 UA3964?
The flight UA3964 is scheduled to flight on Monday, Wednesday, Sunday on a weekly basis.
Which is the distance of flight UA3964?
The distance between the two airports is 13584 kilometers.
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 Singapore: 2026-08-06 10:57:43
Current Time in San Francisco: 2026-08-05 19:57:43
The flight UA3964 is scheduled to flight on Monday, Wednesday, Sunday on a weekly basis.
Which is the distance of flight UA3964?
The distance between the two airports is 13584 kilometers.
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 Singapore: 2026-08-06 10:57:43
Current Time in San Francisco: 2026-08-05 19:57:43
Alternative Flights
The following airlines serves the same route between Singapore and San Francisco:
Singapore Airlines
- Flight Number: SQ32. (On Time performance: 78 - Average Delay: 7 minutes)
- Flight Number: SQ34. (On Time performance: 76 - Average Delay: 9 minutes)
United Airlines
- Flight Number: UA2. (On Time performance: 73 - Average Delay: 49 minutes)
- Flight Number: UA28. (On Time performance: 36 - Average Delay: 139 minutes)
Singapore Airlines
- Flight Number: SQ32. (On Time performance: 78 - Average Delay: 7 minutes)
- Flight Number: SQ34. (On Time performance: 76 - Average Delay: 9 minutes)
United Airlines
- Flight Number: UA2. (On Time performance: 73 - Average Delay: 49 minutes)
- Flight Number: UA28. (On Time performance: 36 - Average Delay: 139 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 UA3964
Date
Departure
Arrival
Duration
Aircraft
Status
Wednesday
05 August
05 August
22:05
Singapore (SIN)
Singapore (SIN)
22:21
San Francisco (SFO)
San Francisco (SFO)
15h 16min
Boeing 787-9
Boeing 787-9
- On-time
Monday
03 August
03 August
22:26
Singapore (SIN)
Singapore (SIN)
23:53
San Francisco (SFO)
San Francisco (SFO)
16h 27min
Boeing 787-9
Boeing 787-9
Landed - Delayed
Sunday
02 August
02 August
21:00
Singapore (SIN)
Singapore (SIN)
22:16
San Francisco (SFO)
San Francisco (SFO)
16h 16min