UAL8129

UNITED AIRLINES INC · DEN → IAH

UAL8129 is operated by UNITED AIRLINES INC between Denver International Airport (KDEN) and George Bush Intercontinental Houston Airport (KIAH). The flight is most often flown by a BOEING Boeing 757-300. Typical block time is 2h 17m. SkyMeter has observed 25 legs of this flight number via ADS-B.

✈
FLIGHTS
25
last 90 days
⏱
AVG DURATION
2h 17m
tracked time
📅
SERVICE PERIOD
6/1/2025 → 8/14/2026
first → last seen
🗺
ROUTES / TYPES
15 / 8
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

10
KDEN → KIAH
6
avg 2h 13m · Denver → George Bush Intercontinental Houston
KDEN → KPHX
3
avg 1h 43m · Denver → Phoenix Sky Harbor
KDEN → CYEG
2
avg 2h 28m · Denver → Edmonton
KSFO → KDFW
1
avg 3h 15m · San Francisco → Dallas Fort Worth
KDEN → KPDX
1
avg 2h 17m · Denver → Portland
KLGA → KDEN
1
avg 3h 51m · La Guardia → Denver
KSFO → KSEA
1
avg 2h 20m · San Francisco → Seattle Tacoma
KORD → KALB
1
avg 1h 37m · Chicago O'Hare → Albany
KSFO → KATL
1
avg 4h 34m · San Francisco → Hartsfield Jackson Atlanta
KDEN → KSMF
1
avg 2h 22m · Denver → Sacramento

Aircraft types

Equipment used on this number

8
B753 BOEING Boeing 757-300
6
B739 BOEING Boeing 737-900
6
B39M BOEING Boeing 737 MAX 9
4
A320 AIRBUS Airbus A320
3
B738 BOEING Boeing 737-800
3
A21N AIRBUS Airbus A321 Neo
1
B38M BOEING Boeing 737 MAX 8
1
A319 AIRBUS Airbus A319
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 UAL8129

30
N17448BOEING Boeing 737 MAX 9
→
8/14/2026
2h 33m
No alerts
Replay Analysis
N78506BOEING Boeing 737-800
→
8/13/2026
2h 38m
No alerts
Replay Analysis
N63890BOEING Boeing 737-900
→
8/9/2026
1h 38m
No alerts
Replay Analysis
N63890BOEING Boeing 737-900
→
8/9/2026
16m
No alerts
Replay Analysis
N62896BOEING Boeing 737-900
→
8/4/2026
1h 52m
No alerts
Replay Analysis
N17341BOEING Boeing 737 MAX 8
→
7/30/2026
4h 33m
No alerts
Replay Analysis
N36444BOEING Boeing 737-900
→
7/23/2026
4h 49m
No alerts
Replay Analysis
N78511BOEING Boeing 737-800
→
7/21/2026
2h 17m
No alerts
Replay Analysis
N14531AIRBUS Airbus A321 Neo
→
7/19/2026
3h 50m
No alerts
Replay Analysis
N47462BOEING Boeing 737 MAX 9
→
7/18/2026
12m
No alerts
Replay Analysis
N47462BOEING Boeing 737 MAX 9
→
7/18/2026
2h 32m
No alerts
Replay Analysis
N57868BOEING Boeing 757-300
→
7/17/2026
2h 17m
No alerts
Replay Analysis
N75858BOEING Boeing 757-300
→
7/11/2026
2h 17m
No alerts
Replay Analysis
N36472BOEING Boeing 737-900
→
7/10/2026
1h 40m
No alerts
Replay Analysis
N441UAAIRBUS Airbus A320
→
7/4/2026
1h 36m
No alerts
Replay Analysis
N441UAAIRBUS Airbus A320
→
7/4/2026
21m
No alerts
Replay Analysis
N27546BOEING Boeing 737 MAX 9
→
7/3/2026
2h 45m
No alerts
Replay Analysis
N57863BOEING Boeing 757-300
→
6/23/2026
2h 15m
No alerts
Replay Analysis
N57863BOEING Boeing 757-300
→
6/17/2026
2h 14m
No alerts
Replay Analysis
N56859BOEING Boeing 757-300
→
6/13/2026
2h 5m
No alerts
Replay Analysis
N56859BOEING Boeing 757-300
→
6/12/2026
2h 7m
No alerts
Replay Analysis
N816UAAIRBUS Airbus A319
→
6/10/2026
3h 15m
No alerts
Replay Analysis
N27213BOEING Boeing 737-800
→
6/9/2026
2h 16m
No alerts
Replay Analysis
N447UAAIRBUS Airbus A320
→
6/9/2026
2h 19m
No alerts
Replay Analysis
N38446BOEING Boeing 737-900
→
6/8/2026
2h 22m
No alerts
Replay Analysis
N847UAAIRBUS Airbus A319
→
6/5/2026
2h 20m
No alerts
Replay Analysis
N75854BOEING Boeing 757-300
→
6/4/2026
2h 7m
No alerts
Replay Analysis
N17347BOEING Boeing 737 MAX 8
→
6/4/2026
2h 2m
No alerts
Replay Analysis
N14520AIRBUS Airbus A321 Neo
→
5/31/2026
1h 14m
No alerts
Replay Analysis
N14520AIRBUS Airbus A321 Neo
→
5/30/2026
2h 28m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window