| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Dec 01 | IAH | DEN | 10:44 | 11:42 |
Landed
|
Track > |
| Nov 30 | IAH | DEN | 11:05 | 12:08 |
Landed
|
Track > |
| Nov 29 | IAH | DEN | 10:13 | 11:13 |
Landed
|
Track > |
| Nov 28 | IAH | DEN | 10:26 | 11:25 |
Landed
|
Track > |
| Nov 27 | IAH | DEN | 10:30 | 11:42 |
Landed
|
Track > |
| Nov 26 | IAH | DEN | 10:40 | 11:38 |
Landed
|
Track > |
| Nov 25 | IAH | DEN | 10:31 | 11:31 |
Landed
|
Track > |
| Nov 24 | IAH | DEN | 14:54 | 11:56 |
Unknown
|
Track > |
| Nov 23 | IAH | DEN | 10:27 | 11:21 |
Landed
|
Track > |
| Nov 22 | IAH | DEN | 10:27 | 11:32 |
Landed
|
Track > |
United Airlines Flight UA423 connects Houston, United States to Denver, United States, taking off from Houston George Bush Intercontinental Airport IAH and landing at Denver International Airport DEN.
How long is the UA423 flight from Houston to Denver?
The average flight time from Houston to Denver is 2 hours and 1 minute. The flight distance is 1387 km / 862 miles and the average flight speed is 672 km/h / 417 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA423 Houston to Denver?
The Airportia On-Time Performance Rating for United Airlines Flight UA423 is 5/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA423 arriving at?
Flight UA423 arrives at Denver International Airport (DEN) Terminal N.
When was the latest UA423 flight?
The latest flight took off on Monday, December 1st, 2025 with the flight status being Landed on 11:42.
How else can the flight UA423 be referenced as?
This United Airlines flight can also be referenced as UAL423, UA0423, UA 423, UAL 423.
How often is flight UA423 delayed?
On average, 10% of all UA423 flights are delayed. The average delay is 12 minutes.
Can I get compensation for my delayed or cancelled UA423 flight or baggage issues?
If your UA423 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 UA423 Flight Tracker above for more details.
Flight UA423 is code-shared by 2 airlines using the flight numbers AC5511, NZ6496
Other flights departing from Houston IAH: UA6110, UA344, UA1651, Y42277
Other flights arriving at Denver DEN: AA2767, Y42313, Y42440, UA5015
All flights connecting Houston IAH to Denver DEN.