Flight Status & Tracker

UAL1644

UNITED AIRLINES INC · SJU → IAH · Last tracked Sep 25, 2026

UAL1644 is a flight number operated by UNITED AIRLINES INC between Luis Munoz Marin International Airport (TJSJ) and George Bush Intercontinental Houston Airport (KIAH). SkyMeter last tracked UAL1644 on September 25, 2026. The flight is most often flown by a BOEING Boeing 737 MAX 9. Typical block time is 4h 9m. SkyMeter has observed 76 legs of this flight number via ADS-B.

SkyMeter tracks historical flight activity from ADS-B data — this is not a live gate-to-gate status feed.

✈
FLIGHTS
76
last 90 days
⏱
AVG DURATION
4h 9m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 9/25/2026
first → last seen
🗺
ROUTES / TYPES
2 / 2
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

1
TJSJ → KIAH
75
avg 4h 10m · Luis Munoz Marin → George Bush Intercontinental Houston

Aircraft types

Equipment used on this number

2
B39M BOEING Boeing 737 MAX 9
75
B739 BOEING Boeing 737-900
1

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 UAL1644

30
N77590BOEING Boeing 737 MAX 9
→
9/25/2026
4h 20m
No alerts
Replay Analysis
N37514BOEING Boeing 737 MAX 9
→
9/24/2026
4h 10m
No alerts
Replay Analysis
N17441BOEING Boeing 737 MAX 9
→
9/23/2026
4h 10m
No alerts
Replay Analysis
N77581BOEING Boeing 737 MAX 9
→
9/22/2026
4h 17m
No alerts
Replay Analysis
N47453BOEING Boeing 737 MAX 9
→
9/21/2026
4h 9m
No alerts
Replay Analysis
N47457BOEING Boeing 737 MAX 9
→
9/20/2026
4h 10m
No alerts
Replay Analysis
N77575BOEING Boeing 737 MAX 9
→
9/19/2026
4h 22m
No alerts
Replay Analysis
N87442BOEING Boeing 737 MAX 9
→
9/18/2026
4h 11m
No alerts
Replay Analysis
N17418BOEING Boeing 737 MAX 9
→
9/17/2026
4h 21m
No alerts
Replay Analysis
N17467BOEING Boeing 737 MAX 9
→
9/16/2026
4h 13m
No alerts
Replay Analysis
N17432BOEING Boeing 737 MAX 9
→
9/15/2026
3h 59m
No alerts
Replay Analysis
N47453BOEING Boeing 737 MAX 9
→
9/12/2026
4h 10m
No alerts
Replay Analysis
N77544BOEING Boeing 737 MAX 9
→
9/11/2026
4h 11m
No alerts
Replay Analysis
N17435BOEING Boeing 737 MAX 9
→
9/10/2026
4h 6m
No alerts
Replay Analysis
N27511BOEING Boeing 737 MAX 9
→
9/9/2026
4h 26m
No alerts
Replay Analysis
N47569BOEING Boeing 737 MAX 9
→
9/8/2026
4h 1m
No alerts
Replay Analysis
N37536BOEING Boeing 737 MAX 9
→
9/4/2026
4h 8m
No alerts
Replay Analysis
N47462BOEING Boeing 737 MAX 9
→
9/2/2026
4h 8m
No alerts
Replay Analysis
N57409BOEING Boeing 737 MAX 9
→
9/1/2026
4h 12m
No alerts
Replay Analysis
N67501BOEING Boeing 737 MAX 9
→
8/31/2026
4h 17m
No alerts
Replay Analysis
N77582BOEING Boeing 737 MAX 9
→
8/30/2026
4h 11m
No alerts
Replay Analysis
N37534BOEING Boeing 737 MAX 9
→
8/29/2026
4h 15m
No alerts
Replay Analysis
N17437BOEING Boeing 737 MAX 9
→
8/28/2026
4h 7m
No alerts
Replay Analysis
N17593BOEING Boeing 737 MAX 9
→
8/27/2026
4h 49m
No alerts
Replay Analysis
N27586BOEING Boeing 737 MAX 9
→
8/26/2026
4h 2m
No alerts
Replay Analysis
N17441BOEING Boeing 737 MAX 9
→
8/25/2026
4h 15m
No alerts
Replay Analysis
N67501BOEING Boeing 737 MAX 9
→
8/23/2026
4h 13m
No alerts
Replay Analysis
N37507BOEING Boeing 737 MAX 9
→
8/22/2026
4h 21m
No alerts
Replay Analysis
N17420BOEING Boeing 737 MAX 9
→
8/21/2026
4h 15m
No alerts
Replay Analysis
N57416BOEING Boeing 737 MAX 9
→
8/19/2026
2h 21m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window