UAL1231

UNITED AIRLINES INC · ORD → IAH

UAL1231 is operated by UNITED AIRLINES INC between Chicago O'Hare International Airport (KORD) and George Bush Intercontinental Houston Airport (KIAH). The flight is most often flown by a AIRBUS Airbus A321 Neo. Typical block time is 2h 9m. SkyMeter has observed 104 legs of this flight number via ADS-B.

✈
FLIGHTS
104
last 90 days
⏱
AVG DURATION
2h 9m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 8/11/2026
first → last seen
🗺
ROUTES / TYPES
4 / 3
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

2
KORD → KIAH
83
avg 2h 20m · Chicago O'Hare → George Bush Intercontinental Houston
KLAS → KORD
7
avg 3h 27m · McCarran → Chicago O'Hare

Aircraft types

Equipment used on this number

3
A21N AIRBUS Airbus A321 Neo
93
B739 BOEING Boeing 737-900
5
B39M BOEING Boeing 737 MAX 9
4

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
0
Rejected TO
0
Stall warnings
0
Overspeeds
0
Runway excursion
0
Counts represent flights with at least one occurrence of each flag, not the total event count. See /incidents for individual events.

Recent flights

Newest 30 operations of UAL1231

30
N68822BOEING Boeing 737-900
→
8/11/2026
2h 3m
No alerts
Replay Analysis
N68822BOEING Boeing 737-900
→
8/11/2026
11m
No alerts
Replay Analysis
N54552AIRBUS Airbus A321 Neo
→
8/8/2026
2h 36m
No alerts
Replay Analysis
N14533AIRBUS Airbus A321 Neo
→
8/7/2026
2h 7m
No alerts
Replay Analysis
N14533AIRBUS Airbus A321 Neo
→
8/7/2026
30m
No alerts
Replay Analysis
N14509AIRBUS Airbus A321 Neo
→
8/6/2026
2h 27m
No alerts
Replay Analysis
N14509AIRBUS Airbus A321 Neo
→
8/6/2026
11m
No alerts
Replay Analysis
N74532AIRBUS Airbus A321 Neo
→
8/5/2026
2h 20m
No alerts
Replay Analysis
N14541AIRBUS Airbus A321 Neo
→
8/4/2026
2h 23m
No alerts
Replay Analysis
N14511AIRBUS Airbus A321 Neo
→
8/3/2026
2h 7m
No alerts
Replay Analysis
N14511AIRBUS Airbus A321 Neo
→
8/3/2026
9m
No alerts
Replay Analysis
N44522AIRBUS Airbus A321 Neo
→
8/2/2026
49m
No alerts
Replay Analysis
N24537AIRBUS Airbus A321 Neo
→
8/1/2026
2h 16m
No alerts
Replay Analysis
N24537AIRBUS Airbus A321 Neo
→
8/1/2026
5m
No alerts
Replay Analysis
N24516AIRBUS Airbus A321 Neo
→
7/31/2026
2h 25m
No alerts
Replay Analysis
N14545AIRBUS Airbus A321 Neo
→
7/30/2026
2h 15m
No alerts
Replay Analysis
N14569AIRBUS Airbus A321 Neo
→
7/29/2026
2h 8m
No alerts
Replay Analysis
N14569AIRBUS Airbus A321 Neo
→
7/29/2026
54m
No alerts
Replay Analysis
N14566AIRBUS Airbus A321 Neo
→
7/28/2026
1h 58m
No alerts
Replay Analysis
N14536AIRBUS Airbus A321 Neo
→
7/27/2026
2h 28m
No alerts
Replay Analysis
N14567
→
7/26/2026
2h 3m
No alerts
Replay Analysis
N54543AIRBUS Airbus A321 Neo
→
7/25/2026
2h 13m
No alerts
Replay Analysis
N14569AIRBUS Airbus A321 Neo
→
7/24/2026
2h 52m
No alerts
Replay Analysis
N14569AIRBUS Airbus A321 Neo
→
7/24/2026
6m
No alerts
Replay Analysis
N14506AIRBUS Airbus A321 Neo
→
7/23/2026
1h 59m
No alerts
Replay Analysis
N14546
→
7/21/2026
2h 0m
No alerts
Replay Analysis
N24537AIRBUS Airbus A321 Neo
→
7/20/2026
2h 1m
No alerts
Replay Analysis
N24505AIRBUS Airbus A321 Neo
→
7/18/2026
2h 13m
No alerts
Replay Analysis
N34562AIRBUS Airbus A321 Neo
→
7/17/2026
2h 21m
No alerts
Replay Analysis
N14544AIRBUS Airbus A321 Neo
→
7/16/2026
2h 7m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window