| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Mar 04 | SJC | DEN | 16:03 | 19:10 |
Landed
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| Mar 03 | SJC | DEN | 15:52 | 19:02 |
Landed
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| Mar 02 | SJC | DEN | 15:55 | 18:52 |
Landed
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| Mar 01 | SJC | DEN | 16:39 | 19:35 |
Landed
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| Feb 28 | SJC | DEN | 15:55 | 18:51 |
Landed
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| Feb 27 | SJC | DEN | 16:04 | 19:07 |
Landed
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| Feb 26 | SJC | DEN | 16:14 | 19:14 |
Landed
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| Feb 25 | SJC | DEN | 16:46 | 19:50 |
Landed Late
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| Feb 24 | SJC | DEN | 15:49 | 18:47 |
Landed
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| Feb 23 | SJC | DEN | 16:01 | 19:10 |
Landed
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United Airlines Flight UA2123 connects San Jose, United States to Denver, United States, taking off from San Jose International Airport SJC and landing at Denver International Airport DEN.
How long is the UA2123 flight from San Jose to Denver?
The average flight time from San Jose to Denver is 2 hours and 2 minutes. The flight distance is 1522 km / 946 miles and the average flight speed is 750 km/h / 466 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA2123 San Jose to Denver?
The Airportia On-Time Performance Rating for United Airlines Flight UA2123 is 5/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA2123 arriving at?
Flight UA2123 arrives at Denver International Airport (DEN) Terminal 1.
When was the latest UA2123 flight?
The latest flight took off on Thursday, March 5th, 2026 with the flight status being Landed on 19:10.
How else can the flight UA2123 be referenced as?
This United Airlines flight can also be referenced as UAL2123, UA 2123, UAL 2123.
How often is flight UA2123 delayed?
On average, 20% of all UA2123 flights are delayed. The average delay is 11 minutes.
Can I get compensation for my delayed or cancelled UA2123 flight or baggage issues?
If your UA2123 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 UA2123 Flight Tracker above for more details.
Flight UA2123 is code-shared by 2 airlines using the flight numbers AC4069, CM1287
Other flights departing from San Jose SJC: WN197, WN543, WN4977, WN3535
Other flights arriving at Denver DEN: WN4387, UA5500, UA377, OO5111
All flights connecting San Jose SJC to Denver DEN.