United Airlines
UA4231 Flight status
According to Trip.com real-time data, the UA4231 flight operated by United Airlines on Sep 6, 2026 is scheduled to fly from Houston (IAH) to Birmingham (BHM). The flight is expected to depart at 07:35 and arrive at 08:58 .
Sat, Sep 5
Sun, Sep 6
Mon, Sep 7
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Arrived
The flight has arrived 18m early
1h 53m
Check-in Counter
--
Boarding Gate
B52
Arrival Gate
C2
Baggage
1
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Scheduled
Your flight will depart on time.
1h 53m
Check-in Counter
--
Boarding Gate
B48
Arrival Gate
--
Baggage
1
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Scheduled
Your flight will depart on time.
1h 53m
Check-in Counter
--
Boarding Gate
--
Arrival Gate
--
Baggage
--
Information provided by VariFlight
For real-time updates, please check airport displays or contact your airline.
UA4231 Aircraft Details
According to Trip.com real-time data, the UA4231 flight from Houston to Birmingham on 9/6/2026 is operated using the aircraft model Embraer RJ 135/140/145. This aircraft has been in service for 22y. The aircraft has Up to 50 seats.
Embraer RJ 135/140/145
Punctuality (Departure)
83
%
Punctuality (Arrival)
93
%
Early on average
9 minutes
Age
22y
Seats
Up to 50
Flight Distance
--
Economy
Premium Economy
In-Flight Services
Snacks
In-flight entertainment is unavailable
Wi-Fi is unavailable
No power outlets are available
Seat Information
79 cm
Legroom
--
Seat width
100°
Reclining Angle
1-2
Seat layout example
In-Flight Services
None
In-flight entertainment is unavailable
Wi-Fi is unavailable
No power outlets are available
Seat Information
97 cm
More legroom than on 27% of flights
--
Seat width
100°
Reclining Angle
--
Seat layout example
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Flight History for UA4231
Trip.com historical records show that the last UA4231 flight departed on Sat, Sep 5 from IAH at approximately 07:44. This flight is expected to arrrive in BHM at 09:10.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Tue, Sep 1 | Houston (IAH) | Birmingham (BHM) | E45X | 08:07 | 09:30 | Arrived |
| Wed, Sep 2 | Houston (IAH) | Birmingham (BHM) | E45X | 07:49 | 09:06 | Arrived |
| Thu, Sep 3 | Houston (IAH) | Birmingham (BHM) | E45X | 07:49 | 09:19 | Arrived |
| Fri, Sep 4 | Houston (IAH) | Birmingham (BHM) | E45X | 07:49 | 09:12 | Arrived |
| Sat, Sep 5 | Houston (IAH) | Birmingham (BHM) | E45X | 07:44 | 09:10 | Arrived |
| Sun, Sep 6 | Houston (IAH) | Birmingham (BHM) | E45X | 07:35 | 08:58 | Scheduled |
| Mon, Sep 7 | Houston (IAH) | Birmingham (BHM) | ERJ | 07:35 | 09:28 | Scheduled |
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UA4231 On-Time Performance
Based on the average performance of this flight over the last 30 trips, the on-time departure rate of UA4231 is 83% (Late on average 20 minutes), and the on-time arrival rate is 93% (Early on average 9 minutes).
On-Time Departures
Punctuality
83
%
Late on average
20 minutes
Early
0
%
On time
83
%
30 mins late
10
%
60 mins late
3
%
90 mins late
3
%
Cancelled
0
%
On-Time Arrivals
Punctuality
93
%
Early on average
9 minutes
Early
80
%
On time
13
%
30 mins late
3
%
60 mins late
3
%
90 mins late
0
%
Cancelled
0
%
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Flight FAQs
-
What is the current status of flight ua4231?
Flight ua4231 has not departed yet and is currently on schedule. Scheduled departure 07:35, arrival 09:28 (updated Sep 6, 2026). -
Is flight ua4231 on time today?
Flight ua4231 has not departed yet and is currently on schedule. Scheduled departure is 07:35, with arrival at 09:28. Recheck gate and timing before you head to the airport. -
Has flight ua4231 departed yet? What is the departure time?
Flight ua4231 is scheduled to depart at 07:35. The latest actual or estimated departure time is 07:35, and the current status is Scheduled (updated Sep 6, 2026). -
When is flight ua4231 scheduled to arrive?
Flight ua4231 is scheduled to arrive at 09:28. The latest estimated or actual arrival time is 08:58. Status is Scheduled as of Sep 6, 2026. -
What is the gate information for flight ua4231?
For flight ua4231, the departure terminal is C and the boarding gate is B48. Gate assignments can change at short notice—confirm on airport screens before heading to security. -
What route does flight ua4231 fly?
Flight ua4231 is operated by United Airlines from Houston (IAH) to Birmingham (BHM). Typical flight time is about 1 hour 53 minutes; operating days may include Sunday. -
How can I check real-time status for flight ua4231?
Track flight ua4231 on this Trip.com status page for live departure, arrival, gate and baggage updates. For push alerts on the go, open the same flight in the Trip.com App and turn on flight notifications. -
If flight ua4231 is delayed or canceled, what should I do?
If ua4231 is delayed or canceled, first confirm the latest status here (Scheduled, updated Sep 6, 2026). Contact United Airlines or your booking channel for rebooking or refund options, and check Trip.com Manage Booking if you booked on Trip.com. -
Has flight ua4231 departed from Houston?
Flight ua4231 has not departed from Houston (IAH) yet and is currently on schedule for 07:35. -
What is the seat configuration for flight ua4231?
Flight ua4231 usually flies a Embraer RJ 135/140/145 with seat layout 1-2. Layouts can differ by aircraft subtype and cabin product—confirm your seat map in Manage Booking after you purchase.
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Arrival Info: Birmingham Weather & Current Time
Clear
|
23°C - 39°C
Weather forecast for your arrival day
0 hour time difference
Time on arrival: Houston 09:28
|
Birmingham 09:28
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