UAL1233

UNITED AIRLINES INC · DEN → EWR

UAL1233 is operated by UNITED AIRLINES INC between Denver International Airport (KDEN) and Newark Liberty International Airport (KEWR). The flight is most often flown by a AIRBUS Airbus A321 Neo. Typical block time is 2h 37m. SkyMeter has observed 166 legs of this flight number via ADS-B.

✈
FLIGHTS
166
last 90 days
⏱
AVG DURATION
2h 37m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 08/21/2026
first → last seen
🗺
ROUTES / TYPES
19 / 5
city pairs · airframes
⚠
INCIDENT RATE
3.6%
6 flagged

Routes flown

By count · last 90 days

10
KDEN → KEWR
74
avg 3h 32m · Denver → Newark Liberty
KSFO → KDEN
29
avg 2h 35m · San Francisco → Denver
KEWR → KRDU
27
avg 1h 27m · Newark Liberty → Raleigh Durham
KSYR → KEWR
2
avg 56m · Syracuse Hancock → Newark Liberty
KEWR → 9NC0
2
avg 1h 30m · Newark Liberty → Raleigh East
KHAF → KDEN
2
avg 2h 36m · Half Moon Bay → Denver
KDEN → KSYR
2
avg 3h 51m · Denver → Syracuse Hancock
KRIC → KEWR
1
avg 1h 7m · Richmond → Newark Liberty
KOAK → KDEN
1
avg 2h 40m · Metropolitan Oakland → Denver
IS23 → KORD
1
avg 21m · Turner Seaplane Base → Chicago O'Hare

Aircraft types

Equipment used on this number

5
A21N AIRBUS Airbus A321 Neo
116
A319 AIRBUS Airbus A319
46
B39M BOEING Boeing 737 MAX 9
20
ST75 ST75
2
B739 BOEING Boeing 737-900
1

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
6
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 UAL1233

30
N14528AIRBUS Airbus A321 Neo
→
08/21/2026
3h 37m
No alerts
Replay Analysis
N14502AIRBUS Airbus A321 Neo
→
08/18/2026
3h 33m
No alerts
Replay Analysis
N74532AIRBUS Airbus A321 Neo
→
08/17/2026
3h 29m
No alerts
Replay Analysis
N14503AIRBUS Airbus A321 Neo
→
08/16/2026
3h 24m
No alerts
Replay Analysis
N27477BOEING Boeing 737-900
→
08/15/2026
3h 27m
No alerts
Replay Analysis
N24537AIRBUS Airbus A321 Neo
→
08/14/2026
3h 42m
No alerts
Replay Analysis
N34551AIRBUS Airbus A321 Neo
→
08/13/2026
3h 53m
No alerts
Replay Analysis
N14524AIRBUS Airbus A321 Neo
→
08/12/2026
2h 30m
No alerts
Replay Analysis
N44522AIRBUS Airbus A321 Neo
→
08/12/2026
2h 42m
No alerts
Replay Analysis
N44522AIRBUS Airbus A321 Neo
→
08/11/2026
1h 5m
No alerts
Replay Analysis
N44522AIRBUS Airbus A321 Neo
→
08/11/2026
3h 47m
No alerts
Replay Analysis
N14559AIRBUS Airbus A321 Neo
→
08/11/2026
16m
↘ Diverted
Replay Analysis
N14559AIRBUS Airbus A321 Neo
→
08/10/2026
32m
No alerts
Replay Analysis
N14559AIRBUS Airbus A321 Neo
→
08/10/2026
49m
No alerts
Replay Analysis
N14559AIRBUS Airbus A321 Neo
→
08/10/2026
3h 41m
No alerts
Replay Analysis
N848UAAIRBUS Airbus A319
→
08/10/2026
1h 36m
No alerts
Replay Analysis
N44522AIRBUS Airbus A321 Neo
→
08/09/2026
3h 14m
No alerts
Replay Analysis
N14523AIRBUS Airbus A321 Neo
→
08/08/2026
3h 38m
No alerts
Replay Analysis
N54561ST75
→
08/08/2026
1h 7m
No alerts
Replay Analysis
N54561ST75
→
08/07/2026
3h 56m
↘ Diverted (inferred)
Replay Analysis
N848UAAIRBUS Airbus A319
→
08/07/2026
1h 25m
No alerts
Replay Analysis
N14536AIRBUS Airbus A321 Neo
→
08/06/2026
3h 48m
No alerts
Replay Analysis
N851UAAIRBUS Airbus A319
→
08/06/2026
2h 11m
No alerts
Replay Analysis
N14523AIRBUS Airbus A321 Neo
→
08/05/2026
3h 37m
No alerts
Replay Analysis
N850UAAIRBUS Airbus A319
→
08/05/2026
43m
No alerts
Replay Analysis
N850UAAIRBUS Airbus A319
→
08/04/2026
31m
No alerts
Replay Analysis
N850UAAIRBUS Airbus A319
→
08/04/2026
1h 14m
No alerts
Replay Analysis
N14546
→
08/04/2026
3h 38m
No alerts
Replay Analysis
N877UAAIRBUS Airbus A319
→
08/04/2026
1h 22m
△ Low approach-stability score
Replay Analysis
N14564AIRBUS Airbus A321 Neo
→
08/03/2026
3h 29m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window