UAL1253

UNITED AIRLINES INC · DEN → IAH

UAL1253 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 AIRBUS Airbus A321 Neo. Typical block time is 2h 1m. SkyMeter has observed 71 legs of this flight number via ADS-B.

✈
FLIGHTS
71
last 90 days
⏱
AVG DURATION
2h 1m
tracked time
📅
SERVICE PERIOD
05/28/2025 → 08/18/2026
first → last seen
🗺
ROUTES / TYPES
5 / 5
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

3
KDEN → KIAH
59
avg 2h 13m · Denver → George Bush Intercontinental Houston
KCLE → KORD
7
avg 1h 16m · Cleveland Hopkins → Chicago O'Hare
OI43 → KORD
1
avg 1h 10m · Back Achers Heliport → Chicago O'Hare

Aircraft types

Equipment used on this number

5
A21N AIRBUS Airbus A321 Neo
57
A320 AIRBUS Airbus A320
9
B738 BOEING Boeing 737-800
1
B739 BOEING Boeing 737-900
1
B39M BOEING Boeing 737 MAX 9
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 UAL1253

30
N446UAAIRBUS Airbus A320
→
08/18/2026
1h 5m
No alerts
Replay Analysis
N461UAAIRBUS Airbus A320
→
08/17/2026
1h 13m
No alerts
Replay Analysis
N474UAAIRBUS Airbus A320
→
08/16/2026
1h 11m
No alerts
Replay Analysis
N441UAAIRBUS Airbus A320
→
08/15/2026
1h 20m
No alerts
Replay Analysis
N498UAAIRBUS Airbus A320
→
08/14/2026
13m
No alerts
Replay Analysis
N498UAAIRBUS Airbus A320
→
08/14/2026
1h 25m
No alerts
Replay Analysis
N457UAAIRBUS Airbus A320
→
08/13/2026
1h 23m
No alerts
Replay Analysis
N448UAAIRBUS Airbus A320
→
08/12/2026
1h 9m
No alerts
Replay Analysis
N79521BOEING Boeing 737-800
→
08/11/2026
1h 18m
No alerts
Replay Analysis
N54552AIRBUS Airbus A321 Neo
→
08/11/2026
2h 0m
No alerts
Replay Analysis
N54552AIRBUS Airbus A321 Neo
→
08/11/2026
11m
No alerts
Replay Analysis
N17452BOEING Boeing 737 MAX 9
→
08/10/2026
2h 12m
No alerts
Replay Analysis
N14527AIRBUS Airbus A321 Neo
→
08/08/2026
2h 12m
No alerts
Replay Analysis
N14549AIRBUS Airbus A321 Neo
→
08/07/2026
2h 7m
No alerts
Replay Analysis
N14559AIRBUS Airbus A321 Neo
→
08/06/2026
2h 7m
No alerts
Replay Analysis
N14528AIRBUS Airbus A321 Neo
→
08/04/2026
2h 20m
No alerts
Replay Analysis
N14523AIRBUS Airbus A321 Neo
→
08/03/2026
2h 18m
No alerts
Replay Analysis
N14548AIRBUS Airbus A321 Neo
→
08/01/2026
2h 11m
No alerts
Replay Analysis
N14515AIRBUS Airbus A321 Neo
→
07/31/2026
2h 34m
No alerts
Replay Analysis
N24526AIRBUS Airbus A321 Neo
→
07/30/2026
2h 12m
No alerts
Replay Analysis
N24573
→
07/27/2026
2h 4m
No alerts
Replay Analysis
N14511AIRBUS Airbus A321 Neo
→
07/25/2026
2h 17m
No alerts
Replay Analysis
N24505AIRBUS Airbus A321 Neo
→
07/24/2026
2h 17m
No alerts
Replay Analysis
N44501AIRBUS Airbus A321 Neo
→
07/23/2026
2h 6m
No alerts
Replay Analysis
N14534AIRBUS Airbus A321 Neo
→
07/21/2026
2h 20m
No alerts
Replay Analysis
N54570AIRBUS Airbus A321 Neo
→
07/20/2026
2h 10m
No alerts
Replay Analysis
N14539AIRBUS Airbus A321 Neo
→
07/18/2026
1h 57m
No alerts
Replay Analysis
N94556AIRBUS Airbus A321 Neo
→
07/17/2026
1h 49m
No alerts
Replay Analysis
N466UAAIRBUS Airbus A320
→
07/16/2026
2h 10m
No alerts
Replay Analysis
N14527AIRBUS Airbus A321 Neo
→
07/14/2026
2h 13m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window