Flight Status & Tracker

UAL404

UNITED AIRLINES INC · SAT → IAH · Last tracked Nov 11, 2026

UAL404 is a flight number operated by UNITED AIRLINES INC between San Antonio International Airport (KSAT) and George Bush Intercontinental Houston Airport (KIAH). SkyMeter last tracked UAL404 on November 11, 2026. The flight is most often flown by a BOEING Boeing 737 MAX 9. Typical block time is 1h 42m. SkyMeter has observed 147 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
147
last 90 days
⏱
AVG DURATION
1h 42m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 11/11/2026
first → last seen
🗺
ROUTES / TYPES
6 / 6
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

3
KSAT → KIAH
78
avg 47m · San Antonio → George Bush Intercontinental Houston
KIAH → KEWR
49
avg 3h 8m · George Bush Intercontinental Houston → Newark Liberty
KIAH → KCDW
1
avg 3h 8m · George Bush Intercontinental Houston → Essex County

Aircraft types

Equipment used on this number

6
B39M BOEING Boeing 737 MAX 9
127
B737 BOEING Boeing 737-700
41
A319 AIRBUS Airbus A319
24
B739 BOEING Boeing 737-900
21
A320 AIRBUS Airbus A320
1
B38M BOEING Boeing 737 MAX 8
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 UAL404

30
N37415BOEING Boeing 737 MAX 9
→
11/11/2026
40m
No alerts
Replay Analysis
N34455BOEING Boeing 737-900
→
11/11/2026
2h 55m
No alerts
Replay Analysis
N17431BOEING Boeing 737 MAX 9
→
11/8/2026
34m
No alerts
Replay Analysis
N37513BOEING Boeing 737 MAX 9
→
11/7/2026
37m
No alerts
Replay Analysis
N47470BOEING Boeing 737 MAX 9
→
11/7/2026
38m
No alerts
Replay Analysis
N37464BOEING Boeing 737-900
→
11/6/2026
2h 51m
No alerts
Replay Analysis
N75429BOEING Boeing 737-900
→
11/5/2026
37m
No alerts
Replay Analysis
N38443BOEING Boeing 737-900
→
11/5/2026
3h 4m
No alerts
Replay Analysis
N27474BOEING Boeing 737 MAX 9
→
11/4/2026
35m
No alerts
Replay Analysis
N61882BOEING Boeing 737-900
→
11/4/2026
3h 16m
No alerts
Replay Analysis
N17413BOEING Boeing 737 MAX 9
→
11/3/2026
38m
No alerts
Replay Analysis
N37468BOEING Boeing 737-900
→
11/3/2026
3h 3m
No alerts
Replay Analysis
N47505BOEING Boeing 737 MAX 9
→
11/2/2026
33m
No alerts
Replay Analysis
N63890BOEING Boeing 737-900
→
11/2/2026
3h 6m
No alerts
Replay Analysis
N27419BOEING Boeing 737 MAX 9
→
11/1/2026
40m
No alerts
Replay Analysis
N37434BOEING Boeing 737-900
→
11/1/2026
2h 47m
No alerts
Replay Analysis
N37518BOEING Boeing 737 MAX 9
→
10/31/2026
50m
No alerts
Replay Analysis
N69806BOEING Boeing 737-900
→
10/31/2026
5m
No alerts
Replay Analysis
N17430BOEING Boeing 737 MAX 9
→
10/30/2026
52m
No alerts
Replay Analysis
N38467BOEING Boeing 737-900
→
10/30/2026
2h 59m
No alerts
Replay Analysis
N17422BOEING Boeing 737 MAX 9
→
10/29/2026
49m
No alerts
Replay Analysis
N37518BOEING Boeing 737 MAX 9
→
10/28/2026
52m
No alerts
Replay Analysis
N37420BOEING Boeing 737-900
→
10/28/2026
2h 51m
No alerts
Replay Analysis
N37420BOEING Boeing 737-900
→
10/28/2026
2h 59m
No alerts
Replay Analysis
N37420BOEING Boeing 737-900
→
10/28/2026
7m
No alerts
Replay Analysis
N17429BOEING Boeing 737 MAX 9
→
10/27/2026
46m
No alerts
Replay Analysis
N37434BOEING Boeing 737-900
→
10/27/2026
2h 52m
No alerts
Replay Analysis
N78438BOEING Boeing 737-900
→
10/26/2026
3h 2m
No alerts
Replay Analysis
N78438BOEING Boeing 737-900
→
10/26/2026
3h 8m
No alerts
Replay Analysis
N78438BOEING Boeing 737-900
→
10/26/2026
6m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window