| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Feb 21 | SMF | SFO | 12:22 | 12:48 |
Delayed
|
Track > |
| Jan 25 | SMF | SFO | 08:27 | 08:15 |
Unknown
|
Track > |
United Airlines Flight UA3901 connects Sacramento, United States to San Francisco, United States, taking off from Sacramento International Airport SMF and landing at San Francisco International Airport SFO.
How long is the UA3901 flight from Sacramento to San Francisco?
The average flight time from Sacramento to San Francisco is 26 minutes. The flight distance is 138 km / 86 miles and the average flight speed is 228 km/h / 142 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA3901 Sacramento to San Francisco?
The Airportia On-Time Performance Rating for United Airlines Flight UA3901 is 4.6/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA3901 arriving at?
Flight UA3901 arrives at San Francisco International Airport (SFO) Terminal I.
When was the latest UA3901 flight?
The latest flight took off on Saturday, February 21st, 2026 with the flight status being En-Route on 12:48.
How else can the flight UA3901 be referenced as?
This United Airlines flight can also be referenced as UAL3901, UA 3901, UAL 3901.
How often is flight UA3901 delayed?
On average, 50% of all UA3901 flights are delayed. The average delay is 52 minutes.
Can I get compensation for my delayed or cancelled UA3901 flight or baggage issues?
If your UA3901 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 UA3901 Flight Tracker above for more details.
Other flights departing from Sacramento SMF: WN454, WN4056, WN4559, WN2283
Other flights arriving at San Francisco SFO: WN4692, UA1159, UA5336, UA4689
All flights connecting Sacramento SMF to San Francisco SFO.