| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jun 23 | SIN | SFO | 12:21 | 12:14 |
Landed
|
Track > |
| Jun 09 | SIN | SFO | 09:30 | 10:45 |
Cancelled
|
Track > |
| Claim > | ||||||
| May 18 | SIN | SFO | 13:53 | 13:36 |
Delayed
|
Track > |
| Oct 10 | SIN | SFO | 10:17 | 09:30 |
Landed
|
Track > |
| Sep 29 | SIN | SFO | 23:58 | 00:04 |
Delayed
|
Track > |
United Airlines Flight UA3974 connects Singapore, Singapore to San Francisco, United States, taking off from Singapore Changi Airport SIN and landing at San Francisco International Airport SFO.
How long is the UA3974 flight from Singapore to San Francisco?
The average flight time from Singapore to San Francisco is 14 hours and 43 minutes. The flight distance is 13581 km / 8439 miles and the average flight speed is 905 km/h / 562 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA3974 Singapore to San Francisco?
The Airportia On-Time Performance Rating for United Airlines Flight UA3974 is 4.4/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA3974 arriving at?
Flight UA3974 arrives at San Francisco International Airport (SFO) Terminal 1.
When was the latest UA3974 flight?
The latest flight took off on Tuesday, June 23rd, 2026 with the flight status being Landed on 12:14.
How else can the flight UA3974 be referenced as?
This United Airlines flight can also be referenced as UAL3974, UA 3974, UAL 3974.
How often is flight UA3974 delayed?
On average, 40% of all UA3974 flights are delayed. The average delay is 87 minutes.
Can I get compensation for my delayed or cancelled UA3974 flight or baggage issues?
If your UA3974 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.
See our UA3974 Flight Tracker above for more details.
Other flights departing from Singapore SIN: 5J818, SB741, KB541, SQ7922
Other flights arriving at San Francisco SFO: UA635, UA1333, UA1430, WN3412
All flights connecting Singapore SIN to San Francisco SFO.
