| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Mar 28 | DEN | IAH | 11:41 | 14:25 |
Delayed
|
Track > |
| Mar 27 | DEN | IAH | 10:40 | 13:29 |
Landed
|
Track > |
| Mar 26 | DEN | IAH | 10:21 | 13:12 |
Landed
|
Track > |
| Mar 25 | DEN | IAH | 10:21 | 13:11 |
Landed
|
Track > |
| Mar 24 | DEN | IAH | 10:16 | 13:05 |
Landed
|
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| Mar 23 | DEN | IAH | 10:31 | 13:22 |
Landed
|
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| Mar 22 | DEN | IAH | 10:15 | 13:15 |
Landed
|
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| Mar 21 | DEN | IAH | 13:34 | 13:35 |
Unknown
|
Track > |
| Mar 20 | DEN | IAH | 10:18 | 13:08 |
Landed
|
Track > |
| Mar 19 | DEN | IAH | 10:13 | 13:10 |
Landed
|
Track > |
United Airlines Flight UA423 connects Denver, United States to Houston, United States, taking off from Denver International Airport DEN and landing at Houston George Bush Intercontinental Airport IAH.
How long is the UA423 flight from Denver to Houston?
The average flight time from Denver to Houston is 1 hour and 51 minutes. The flight distance is 1387 km / 862 miles and the average flight speed is 729 km/h / 453 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA423 Denver to Houston?
The Airportia On-Time Performance Rating for United Airlines Flight UA423 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA423 arriving at?
Flight UA423 arrives at Houston George Bush Intercontinental Airport (IAH) Terminal C.
When was the latest UA423 flight?
The latest flight took off on Saturday, March 28th, 2026 with the flight status being En-Route on 14:25.
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 50 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 AC5329, NZ6500
Other flights departing from Denver DEN: OO5333, UA2159, UA4703, OO5142
Other flights arriving at Houston IAH: UA5699, UA1081, UA4271, UA4915
All flights connecting Denver DEN to Houston IAH.