| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jul 05 | IAH | STL | 19:33 | 21:12 |
Landed Late
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| Jul 03 | IAH | STL | 18:57 | 20:28 |
Landed
|
Track > |
| Jul 02 | IAH | STL | 20:40 | 22:18 |
Delayed
|
Track > |
| Jul 01 | IAH | STL | 21:34 | 20:40 |
En-Route
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United Airlines Flight UA4573 connects Houston, United States to St. Louis, United States, taking off from Houston George Bush Intercontinental Airport IAH and landing at St. Louis Lambert International Airport STL.
How long is the UA4573 flight from Houston to St. Louis?
The average flight time from Houston to St. Louis is 1 hour and 36 minutes. The flight distance is 1076 km / 668 miles and the average flight speed is 627 km/h / 390 mph.
How many UA4573 flights are operated per week?
4 flights per week. The flight UA4573 is operated on Wednesday, Thursday, Friday and Sunday.
What is the On-Time Performance (OTP) of United Airlines Flight UA4573 Houston to St. Louis?
The Airportia On-Time Performance Rating for United Airlines Flight UA4573 is 4.5/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA4573 arriving at?
Flight UA4573 arrives at St. Louis Lambert International Airport (STL) Terminal 1.
When was the latest UA4573 flight?
The latest flight took off on Monday, July 6th, 2026 with the flight status being Landed on 21:12.
How else can the flight UA4573 be referenced as?
This United Airlines flight can also be referenced as UAL4573, UA 4573, UAL 4573.
How often is flight UA4573 delayed?
On average, 50% of all UA4573 flights are delayed. The average delay is 65 minutes.
Can I get compensation for my delayed or cancelled UA4573 flight or baggage issues?
If your UA4573 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 UA4573 Flight Tracker above for more details.
Flight UA4573 is code-shared by 3 airlines using the flight numbers CM1705, NZ6901, VA8324
Other flights departing from Houston IAH: UA2451, UA6111, UA2690, UA692
Other flights arriving at St. Louis STL: WN754, WN4895, UA1422, DL1541
All flights connecting Houston IAH to St. Louis STL.