UAL1591

UNITED AIRLINES INC · LAX → IAH

UAL1591 is operated by UNITED AIRLINES INC between Los Angeles International Airport (KLAX) and George Bush Intercontinental Houston Airport (KIAH). The flight is most often flown by a BOEING Boeing 737-900. Typical block time is 3h 5m. SkyMeter has observed 149 legs of this flight number via ADS-B.

✈
FLIGHTS
149
last 90 days
⏱
AVG DURATION
3h 5m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 9/2/2026
first → last seen
🗺
ROUTES / TYPES
11 / 6
city pairs · airframes
⚠
INCIDENT RATE
0.7%
1 flagged

Routes flown

By count · last 90 days

8
KIAH → KPIT
55
avg 2h 25m · George Bush Intercontinental Houston → Pittsburgh
KLAX → KIAH
55
avg 3h 1m · Los Angeles → George Bush Intercontinental Houston
KBWI → KLAX
23
avg 5h 15m · Baltimore/Washington International Thurgood Marshall → Los Angeles
US-1410 → KIAH
4
avg 3h 10m · Sheraton Gateway Los Angeles Hotel Helipad → George Bush Intercontinental Houston
US-1412 → KIAH
1
avg 3h 3m · Skyview Center I Helipad → George Bush Intercontinental Houston
K9X1 → KPIT
1
avg 2h 27m · North Houston → Pittsburgh
TX49 → KIAH
1
avg 10m · Biggin Hill → George Bush Intercontinental Houston
42TS → KPIT
1
avg 2h 19m · Papa Heliport → Pittsburgh

Aircraft types

Equipment used on this number

6
B739 BOEING Boeing 737-900
103
B737 BOEING Boeing 737-700
25
B738 BOEING Boeing 737-800
21
B39M BOEING Boeing 737 MAX 9
7
B38M BOEING Boeing 737 MAX 8
2
A319 AIRBUS Airbus A319
1

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
1
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 UAL1591

30
N27213BOEING Boeing 737-800
→
9/2/2026
5h 31m
No alerts
Replay Analysis
N37290BOEING Boeing 737-800
→
9/1/2026
5h 9m
No alerts
Replay Analysis
N16217BOEING Boeing 737-800
→
8/31/2026
5h 33m
No alerts
Replay Analysis
N14240BOEING Boeing 737-800
→
8/30/2026
5h 8m
No alerts
Replay Analysis
N77585BOEING Boeing 737 MAX 9
→
8/29/2026
5h 3m
No alerts
Replay Analysis
N54241BOEING Boeing 737-800
→
8/28/2026
5h 19m
No alerts
Replay Analysis
N34460BOEING Boeing 737-900
→
8/27/2026
5h 25m
No alerts
Replay Analysis
N77258BOEING Boeing 737-800
→
8/26/2026
5h 25m
No alerts
Replay Analysis
N12218BOEING Boeing 737-800
→
8/25/2026
5h 23m
No alerts
Replay Analysis
N14249BOEING Boeing 737-800
→
8/24/2026
5h 11m
No alerts
Replay Analysis
N33284BOEING Boeing 737-800
→
8/23/2026
5h 10m
No alerts
Replay Analysis
N77258BOEING Boeing 737-800
→
8/22/2026
5h 25m
No alerts
Replay Analysis
N37252BOEING Boeing 737-800
→
8/21/2026
5h 9m
No alerts
Replay Analysis
N47457BOEING Boeing 737 MAX 9
→
8/20/2026
5h 18m
No alerts
Replay Analysis
N33203BOEING Boeing 737-800
→
8/19/2026
5h 18m
No alerts
Replay Analysis
N14250BOEING Boeing 737-800
→
8/18/2026
5h 13m
No alerts
Replay Analysis
N76532BOEING Boeing 737-800
→
8/17/2026
5h 21m
No alerts
Replay Analysis
N87507BOEING Boeing 737-800
→
8/16/2026
5h 7m
No alerts
Replay Analysis
N26215BOEING Boeing 737-800
→
8/15/2026
5h 26m
No alerts
Replay Analysis
N27246BOEING Boeing 737-800
→
8/14/2026
4h 58m
No alerts
Replay Analysis
N62884BOEING Boeing 737-900
→
8/13/2026
5h 2m
No alerts
Replay Analysis
N35271BOEING Boeing 737-800
→
8/12/2026
5h 15m
No alerts
Replay Analysis
N27239BOEING Boeing 737-800
→
8/11/2026
4h 59m
No alerts
Replay Analysis
N47291BOEING Boeing 737 MAX 8
→
8/11/2026
2h 22m
No alerts
Replay Analysis
N30401BOEING Boeing 737-900
→
8/10/2026
3h 3m
No alerts
Replay Analysis
N32404BOEING Boeing 737-900
→
8/10/2026
2h 14m
No alerts
Replay Analysis
N47453BOEING Boeing 737 MAX 9
→
8/9/2026
3h 5m
No alerts
Replay Analysis
N23708BOEING Boeing 737-700
→
8/9/2026
2h 36m
No alerts
Replay Analysis
N75425BOEING Boeing 737-900
→
8/8/2026
2h 54m
No alerts
Replay Analysis
N65832BOEING Boeing 737-900
→
8/8/2026
2h 26m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window