| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Sep 10 | STL | SFO | 08:59 | 11:08 |
Landed
|
Track > |
| Sep 09 | STL | SFO | 08:59 | 10:48 |
Landed
|
Track > |
United Airlines Flight UA2100 connects St. Louis, United States to San Francisco, United States, taking off from St. Louis Lambert International Airport STL and landing at San Francisco International Airport SFO.
How long is the UA2100 flight from St. Louis to San Francisco?
The average flight time from St. Louis to San Francisco is 3 hours and 59 minutes. The flight distance is 2786 km / 1731 miles and the average flight speed is 701 km/h / 435 mph.
How many UA2100 flights are operated per week?
2 flights per week. The flight UA2100 is operated on Wednesday and Thursday.
What is the On-Time Performance (OTP) of United Airlines Flight UA2100 St. Louis to San Francisco?
The Airportia On-Time Performance Rating for United Airlines Flight UA2100 is 5/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA2100 arriving at?
Flight UA2100 arrives at San Francisco International Airport (SFO) Terminal 2.
When was the latest UA2100 flight?
The latest flight took off on Thursday, September 10th, 2026 with the flight status being Landed on 11:08.
How else can the flight UA2100 be referenced as?
This United Airlines flight can also be referenced as UAL2100, UA 2100, UAL 2100.
How often is flight UA2100 delayed?
On average, 50% of all UA2100 flights are delayed. The average delay is 4 minutes.
Can I get compensation for my delayed or cancelled UA2100 flight or baggage issues?
If your UA2100 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 UA2100 Flight Tracker above for more details.
Flight UA2100 is code-shared by 2 airlines using the flight numbers NZ9700, OZ6344
Other flights departing from St. Louis STL: G74506, MQ3546, WN4522, AA712
Other flights arriving at San Francisco SFO: UA34, DL977, UA626, UA1298
All flights connecting St. Louis STL to San Francisco SFO.