United Airlines UA4231 Flight Status
According to Trip.com real-time data, the UA4231 flight operated by United Airlines on Jun 22, 2026, flying from Houston (IAH) to Birmingham (BHM), departed at 8:06 AM and is expected to arrive at 9:33 AM and land at Birmingham-Shuttlesworth International Airport (BHM).
Sun, Jun 21
Mon, Jun 22
Tue, Jun 23
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Arrived
The flight has arrived 1h 1m late
1h 56m
Check-in Counter
--
Boarding Gate
B48
Arrival Gate
C2
Baggage
1
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En route
Your flight has departed Houston and is expected to arrive in Birmingham at 9:33 AM.
1h 56m
Check-in Counter
--
Boarding Gate
B52
Arrival Gate
C2
Baggage
1
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Scheduled
Your flight will depart on time.
1h 56m
Check-in Counter
--
Boarding Gate
B61
Arrival Gate
--
Baggage
--
Information provided by VariFlightVariFlight. For real-time updates, please check airport displays or contact your airline.
Track the Previous Flight Status: Scheduled
UA4923
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Mobile (MOB) 
Houston (HOU)
Houston (HOU)Scheduled: 6:50 PM
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UA4231 Aircraft Details
According to Trip.com real-time data, the UA4231 flight flying from Houston to Birmingham on 6/22/2026 is operated by the aircraft model Embraer RJ 135/140/145. This aircraft has been in service for 20y, 11m. The aircraft is equipped with 50 seats.
Embraer RJ 135/140/145
Punctuality (Departure)
63%
Punctuality (Arrival)
83%
Late on average
9 minutes
Age
20y, 11m
Seats
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
More legroom than on 5% of flights
--
Seat width
105°
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 26% of flights
--
Seat width
105°
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 Sun, Jun 21 from IAH at approximately 9:07 AM. This flight is expected to arrrive in BHM at 10:32 AM.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Wed, Jun 17 | Houston (IAH) | Birmingham (BHM) | E45X | 7:58 AM | 9:25 AM | Arrived |
| Thu, Jun 18 | Houston (IAH) | Birmingham (BHM) | E45X | 8:03 AM | 9:36 AM | Arrived |
| Fri, Jun 19 | Houston (IAH) | Birmingham (BHM) | E45X | 9:37 AM | 10:59 AM | Arrived |
| Sat, Jun 20 | Houston (IAH) | Birmingham (BHM) | E45X | 8:01 AM | 9:16 AM | Arrived |
| Sun, Jun 21 | Houston (IAH) | Birmingham (BHM) | E45X | 9:07 AM | 10:32 AM | Arrived |
| Mon, Jun 22 | Houston (IAH) | Birmingham (BHM) | E45X | 8:06 AM | 9:33 AM | En route |
| Tue, Jun 23 | Houston (IAH) | Birmingham (BHM) | E45X | 7:35 AM | 9:31 AM | Scheduled |
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UA4231 On-Time Performance
Based on the average performance of this flight over the past 30 trips, the on-time departure rate of UA4231 is 63% (Late on average 35 minutes), and the on-time arrival rate is 83% (Late on average 9 minutes).
On-Time Departures
Punctuality
63%
Late on average 35 minutes
Early
0%
On time
63%
30 mins late
23%
60 mins late
0%
90 mins late
13%
Canceled
0%
On-Time Arrivals
Punctuality
83%
Late on average 9 minutes
Early
77%
On time
7%
30 mins late
0%
60 mins late
10%
90 mins late
7%
Canceled
0%
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Arrival Info: Birmingham Weather & Current Time
Intermittent clouds
|
23°C - 31°C
Weather forecast for your arrival day
0 hour time difference
Time on arrival: Houston 09:31| Birmingham 09:31
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