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 18m. SkyMeter has observed 24 legs of this flight number via ADS-B.

✈
FLIGHTS
24
last 90 days
⏱
AVG DURATION
2h 18m
tracked time
📅
SERVICE PERIOD
06/01/2025 → 07/17/2026
first → last seen
🗺
ROUTES / TYPES
16 / 9
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

10
KDEN → KIAH
8
avg 2h 13m · Denver → George Bush Intercontinental Houston
KIAH → KMIA
2
avg 1h 58m · George Bush Intercontinental Houston → Miami
KSFO → KDFW
1
avg 3h 15m · San Francisco → Dallas Fort Worth
KTPA → KORD
1
avg 2h 57m · Tampa → Chicago O'Hare
KORD → KALB
1
avg 1h 37m · Chicago O'Hare → Albany
KDEN → KPHX
1
avg 1h 40m · Denver → Phoenix Sky Harbor
KEWR → KMIA
1
avg 2h 45m · Newark Liberty → Miami
KSBP → KDEN
1
avg 2h 21m · San Luis County → Denver
KDEN → CYEG
1
avg 2h 17m · Denver → Edmonton
KSFO → KSEA
1
avg 2h 20m · San Francisco → Seattle Tacoma

Aircraft types

Equipment used on this number

9
B753 BOEING Boeing 757-300
9
B39M BOEING Boeing 737 MAX 9
4
A21N AIRBUS Airbus A321 Neo
3
A320 AIRBUS Airbus A320
3
B739 BOEING Boeing 737-900
3
A319 AIRBUS Airbus A319
2
B738 BOEING Boeing 737-800
2
B752 BOEING Boeing 757-200
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 UAL8129

30
N57868BOEING Boeing 757-300
→
07/17/2026
2h 17m
No alerts
Replay Analysis
N75858BOEING Boeing 757-300
→
07/11/2026
2h 17m
No alerts
Replay Analysis
N36472BOEING Boeing 737-900
→
07/10/2026
1h 40m
No alerts
Replay Analysis
N441UAAIRBUS Airbus A320
→
07/04/2026
1h 36m
No alerts
Replay Analysis
N441UAAIRBUS Airbus A320
→
07/04/2026
21m
No alerts
Replay Analysis
N27546BOEING Boeing 737 MAX 9
→
07/03/2026
2h 45m
No alerts
Replay Analysis
N57863BOEING Boeing 757-300
→
06/23/2026
2h 15m
No alerts
Replay Analysis
N57863BOEING Boeing 757-300
→
06/17/2026
2h 14m
No alerts
Replay Analysis
N56859BOEING Boeing 757-300
→
06/13/2026
2h 5m
No alerts
Replay Analysis
N56859BOEING Boeing 757-300
→
06/12/2026
2h 7m
No alerts
Replay Analysis
N816UAAIRBUS Airbus A319
→
06/10/2026
3h 15m
No alerts
Replay Analysis
N27213BOEING Boeing 737-800
→
06/09/2026
2h 16m
No alerts
Replay Analysis
N447UAAIRBUS Airbus A320
→
06/09/2026
2h 19m
No alerts
Replay Analysis
N38446BOEING Boeing 737-900
→
06/08/2026
2h 22m
No alerts
Replay Analysis
N847UAAIRBUS Airbus A319
→
06/05/2026
2h 20m
No alerts
Replay Analysis
N75854BOEING Boeing 757-300
→
06/04/2026
2h 7m
No alerts
Replay Analysis
N17347BOEING Boeing 737 MAX 8
→
06/04/2026
2h 2m
No alerts
Replay Analysis
N14520AIRBUS Airbus A321 Neo
→
05/31/2026
1h 14m
No alerts
Replay Analysis
N14520AIRBUS Airbus A321 Neo
→
05/30/2026
1h 13m
No alerts
Replay Analysis
N14520AIRBUS Airbus A321 Neo
→
05/30/2026
2h 28m
No alerts
Replay Analysis
N56859BOEING Boeing 757-300
→
05/23/2026
2h 23m
No alerts
Replay Analysis
N56859BOEING Boeing 757-300
→
05/23/2026
12m
No alerts
Replay Analysis
N37470BOEING Boeing 737-900
→
05/15/2026
3h 45m
No alerts
Replay Analysis
N36280BOEING Boeing 737-800
→
05/01/2026
1h 54m
No alerts
Replay Analysis
N17427BOEING Boeing 737 MAX 9
→
04/23/2026
1h 21m
No alerts
Replay Analysis
N17427BOEING Boeing 737 MAX 9
→
04/22/2026
1h 35m
No alerts
Replay Analysis
N17427BOEING Boeing 737 MAX 9
→
04/22/2026
2h 56m
No alerts
Replay Analysis
N14118BOEING Boeing 757-200
→
04/21/2026
5h 14m
No alerts
Replay Analysis
N17407BOEING Boeing 737 MAX 9
→
04/18/2026
1h 52m
No alerts
Replay Analysis
N76514BOEING Boeing 737-800
→
04/09/2026
22m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window